Tag: electronics (page 1 of 6)

Home Automation DIY Garage Lighting System



Check out how I automated my garage lights. DIY project includes 3-way switch, fluorescent lighting, circuit board design, and software. Detailed build article with plans:

Garage Light Controller

Makercise Multi-way Switching video:

Catus Workshop! video:

flash001USA video:


Source

Internet of Things PCB considerations for Startups

Seeing that IoT devices are so newer, you would think that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and suffering a good deal of technical difficulties. That is definitely untrue.
Nonetheless it doesn’t indicate that IoT startups have a evident route to fame and fortune. Facing them is quite a lot of design and manufacturing points which are special to these small products. These considerations should be considered for the fresh IoT product to reach your goals.

On the plus side, it’s necessary for IoT startups to find out that the foundation for a successful new product exists. This means that experience and knowhow regarding the design, fabrication and assembly of such leading-edge products are out there. Also, the best advice is for discreet IoT product business men and innovators to become aware of the recommendations that qualified electronics manufacturing services or EMS providers are offering. These corporations together with their engineering staffs have already performed the work with groundbreaking IoT firms in Silicon Valley stepping into the beginning of this surfacing segment.

The PCB of an IoT product is a special beast than the traditional one, which is notably larger and flat. IoT gadgets, conversely, are made up largely of either rigid-flex or flex circuit assemblies, which include their own sets of design layout, fabrication and assembly considerations and detailed aspects.

Layout

A primary factor is to try to find encountered designers who’ve undertaken quite a lot of rigid-flex PCB designs. PCB space for an IoT product is at a premium. So you want the designer to have firsthand layout knowledge to correctly design significant parts on that little room.

Moreover, virtually all IoT gadgets are not stationary; they get substantial movement and turning. Right here, the encountered designer plays a key role in calculating bend ratios and lifecycle iterations as a significant part of a design. Various other significant design layout considerations contain signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are utilized on flex circuits to make certain parts attached to the flex circuit keep on being firmly in place to prevent itself from movement.

A new aspect to consider is through-hole element positioning in rigid-flex circuits. Why is that important? Most of the IoT units are founded on surface mount device placement. But nevertheless , there may be through-hole parts, which are often affixed to either the rigid part or the flex part of the board. Through-hole parts are in most cases helpful to connect input/output or I/O signals to the exterior world. Doing this, those signals can be shown having an LCD or LED monitor. Through-hole element placement is a significant concern in an IoT item given that when utilized on the flex section of the board, suitable stiffeners need to be designed and employed for ideal assembly.

Finally in the layout category, the high temperature which parts generate is required to be considered. IoT gadgets are starting to be more elaborate with rigid-flex and flex circuits featuring as many as 12 – 14 layers. Some gadgets are digital. But nevertheless , more and more analog systems are being used in IoT systems. Analog circuitry creates far more heat than digital ones. That means heat expansion plus contraction rate must be taken into account. In tech lingo, this is actually called the Coefficient of Thermal Expansion or CTE and the proper management of it.

Manufacturing

Deciding on the right fabricator is crucial and is linked to the EMS corporation you’ve decided on. The fabricator you’d like must have IoT PCB fabrication practical experience. Among significant considerations here are insuring good adhesions in between layers on both rigid and flex circuit sides, figuring out all of the important calculations and having a robust knowledge of when current transfers from the rigid side to the flex side.

These fabricators must also get an in-depth comprehension of exceptionally compact parts including 0201 and also 00105 device packages, package-on-package, and the utilization of fine-pitch ball-grid array or BGA packaged devices.

Additionally, they need to have knowledge of designing boards with fairly tight tolerances in terms of footprint for those kinds of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They ought to have laser drills for via drilling with sizes of 5 mils or under mainly because these IoT devices could be so little that a standard drill size of 5 to 8 mils would possibly not be all you need. They may have to go to a 3 mil, which indicates that you will need to have an advanced laser drilling capability indoors.

In the event you are placing via-in-pad, it is a good way to make use of the small real estate that’s available on the rigid-flex board, nonetheless , it produces problems for assembly. If vias are not fully planar or flat in shape, it may be an obstacle through the assembly of those tiny BGA packaged devices. That’s because non-planar surfaces could endanger the integrity of solder joints.

Sometimes via in pads leave bumps in cases where they’re not scoured appropriately after putting the vias and gold finish on top. In case there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices wouldn’t be an ideal joint. This might create sporadic connections, which might be a bigger issue to address and remedy. It all boils down to which EMS corporation you are using because they’re the ones who will select the fabrication facility to make a triumphant IoT item for you.

PCB Assembly

It’s crucial to take a look at encountered EMS companies that have successfully assembled IoT and wearable PCBs because they have specialized tooling and fixtures readily existing, which are vital for assembly to assure components are placed properly, accurately and the printing is accomplished correctly.

Printing is usually a difficult task for IoT systems. If it’s a rigid-flex board, then there will be a difference between thicknesses of the rigid and flex circuit portions, indicating a special fixture is required to maintain the complete rigid-flex board planar or absolutely flat to permit effective printing to be achieved.

Startups must be well prepared to discover the most suitable manufacturing partners and EMS enterprises. Doing this they can make sure that they have enough experience beforehand to get the multitude of design, fabrication and assembly details effectively performed since they are crucial to a prosperous and prompt IoT product launch.

Qualcomm CES 2016 booth tour: Snapdragon 820, 820A, 802.11ad, 802.11ac, Windows Continuum and more



Qualcomm Snapdragon 820 is shown in a real phone in LeTV Le Max Pro, with Qualcomm saying that they have 80+ design wins for the Snapdragon 820 custom 64bit processor, now to be mass manufactured on Samsung’s 14nm process technology. Qualcomm also shows their Snapdragon 820 Adreno 530 GPU demos showing off high-end graphics, virtual reality and new display technologies, also Qualcomm WSA8815 audio technology for better sound coming out of built-in speakers for the Smartphones and Tablets market. Scanning people in realtime using Project Tango type structured scanner, IR camera. Qualcomm shows IoT technologies, Qualcomm Vive 802.11ac WiFi with multi-user mimo. Microsoft Windows 10 running on ultra-cheap Qualcomm 210, 410, and Windows continuum extending the Windows 10 desktop from the phone through to the external display using USB Type-C. Qualcomm Atheros Multi-Gigabit 60Ghz Wi-Fi 802.11ad included with the Snapdragon 820 LeTV Le Max Pro Smartphone! Matterport 360 degre camera supported by Qualcomm Ventures and other startups demonstrated. Qualcomm launches Qualcomm 820A for the automitive market and the modular system to upgrade the ARM Processor and PCB of the car to make it future proof.

Source

IoT PCB considerations for Startups

Since IoT products are so cutting edge, you would think that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and experiencing a lots of technical problem. That may be untrue.
Nevertheless it doesn’t convey IoT startups have a very clear way to fame and fortune. Facing them is a variety of design and manufacturing issues to consider which are completely unique to these small products. These factors to consider must be looked at for the new IoT device to hit your objectives.

On the plus side, it’s necessary for IoT startups to know that the basic foundation for a successful cool product exists. This means that experience and knowledge regarding the design, fabrication and assembly of these types of state-of-the-art products are accessible. Additionally, the most sage advice is for wise IoT product entrepreneurs and innovators to heed the counsel that veteran electronics manufacturing services or EMS providers have to give. These businesses along with their engineering employees have already practiced the job with groundbreaking IoT businesses in Silicon Valley getting into the very first of this coming market.

The PCB of an IoT device is a unique beast than the traditional one, which is much larger and flat. IoT devices, on the flip side, are made up largely of either rigid-flex or flex circuit assemblies, which come with their very own groups of design layout, fabrication and assembly factors to consider and nuances.

Layout

A top thing to consider is to hunt down qualified designers who’ve performed quite a lot of rigid-flex PCB designs. PCB space for an IoT device is limited. So you want the designer to have directly layout practical experience to correctly design critical elements on that modest space.

Simultaneously, virtually all IoT products are not fixed; they receive sizeable movement and rotating. Here, the qualified designer plays an essential role in working out bend ratios and lifecycle iterations as a vital part of a design. Additional critical design layout factors to consider consist of signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are used on flex circuits in order to guarantee elements connected to the flex circuit remain closely constantly in place to avoid movement.

One more thing to consider is through-hole component positioning in rigid-flex circuits. What makes that critical? A great deal of IoT units are founded upon surface mount device(SMD) placement. Nevertheless , there may be through-hole elements, which are usually attached to either the rigid portion or the flex part of the board. Through-hole elements are usually used to communicate input/output or I/O signals to the exterior world. Like that, those signals can be displayed by using an LCD or LED monitor. Through-hole component placement is a pretty important account in an IoT system considering that when used on the flex part of the board, appropriate stiffeners need to be designed and put to use for good assembly.

Last of all in the layout category, the high temperature that elements generate is required to be considered. IoT products are increasingly intricate with rigid-flex and flex circuits featuring in excess of 12 – 14 layers. A few products are digital. Nevertheless , ever more analog systems are being utilized in IoT systems. Analog circuitry causes even more heat than digital ones. As a consequence heat expansion and also contraction rate should be evaluated. In tech lingo, that is called the Coefficient of Thermal Expansion or CTE and the correct handling of it.

Fabrication

Selecting the best fabricator is very important and is linked to the EMS partner you’ve picked out. The fabricator you want should have IoT PCB fabrication practical experience. Among critical factors to consider here are making certain tough adhesions in between layers on both rigid and flex circuit sides, bearing in mind all of the crucial calculations and possessing a good know-how about when current transfers from the rigid side to the flex side.

Such fabricators also need to possess an in-depth comprehension of remarkably small parts for example 0201 as well as 00105 device packages, package-on-package, and the use of fine-pitch ball-grid array or BGA packaged devices.

They also need to have experience in designing boards with pretty tight tolerances in terms of footprint for those kinds of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They should have laser drills for via drilling with sizes of 5 mils or under mainly because these IoT devices could be so compact that a typical drill size of 5 to 8 mils probably won’t suffice. They could need to go to a 3 mil, which means that you should have an leading-edge laser drilling capability indoors.

In the event you are placing via-in-pad, it is a fantastic way to take advantage of the small real estate that is available on the rigid-flex board, but it produces difficulties for assembly. If vias aren’t entirely planar or flat in shape, it becomes a difficulty all through the assembly of those tiny BGA packaged devices. That is because non-planar surfaces may put at risk the integrity of solder joints.

Sometimes via in pads leave bumps if they’re not cleaned appropriately after adding the vias and gold finish on the top. In the event that there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices wouldn’t be an excellent joint. It may create intermittent connections, which might be a larger issue to treat and mend. It all boils down to which EMS partner you are using because they’re the ones who will choose the fabrication plant to make a thriving IoT product for you.

PCB Assembly

It’s very important to pay a visit to qualified EMS companies that have efficiently assembled IoT and wearable PCBs because they have unique tooling and fixtures readily obtainable, which are essential for assembly to guarantee components are placed appropriately, accurately and the printing is carried out effectively.

Printing may be a issue for IoT systems. If it’s a rigid-flex board, then there exists a change between thicknesses of the rigid and flex circuit portions, which implies a special fixture is needed to maintain the complete rigid-flex board planar or totally flat to permit effective printing to become reached.

Startups need to be ready to decide on the correct manufacturing partners and EMS corporations. In this way they can ensure that they’ve ample experience in advance to get the multitude of design, fabrication and assembly details correctly performed because they are crucial to a prosperous and prompt IoT product roll-out.

7″ Portable Raspberry Pi Multi-Touch Tablet



In this project, we’ll show you how to build a portable Raspberry Pi 2, using a 7″ touchscreen display, an Adafruit PowerBoost 1000c and a 2500mAh battery. Our 3D printed enclosure fits all of the components making an all-in-one, compact Raspberry Pi tablet.

Full Tutorial:
https://learn.adafruit.com/7-portable-raspberry-pi-multitouch-tablet/overview

Download STLs:
http://www.thingiverse.com/thing:1082431

Previous Project:

3D Printed Cosplay – Avengers Wasp

3D Printing Projects Playlist:

3D Hangout Show Playlist:

Layer by Layer CAD Tutorials Playlist:

Connect with Noe and Pedro on Social Media:

Noe’s Twitter / Instagram: @ecken
Pedro’s Twitter / Instagram: @videopixil

—————————————–
Visit the Adafruit shop online – http://www.adafruit.com

Subscribe to Adafruit on YouTube: http://adafru.it/subscribe

Join our weekly Show & Tell on G+ Hangouts On Air: http://adafru.it/showtell

Watch our latest project videos: http://adafru.it/latest

New tutorials on the Adafruit Learning System: http://learn.adafruit.com/

Music by Noe Ruiz: http://soundcloud.com/ecken
—————————————–

source

Relevant Stories

The Raspberry Pi Zero W Offers Wi-Fi and Bluetooth to the Zero, Costs $10
http://lifehacker.com/the-raspberry-pi-zero-wireless-adds-wi-fi-and-bluetooth-1792789503

Hands-On: A case for the Raspberry Pi Zero with camera
http://www.zdnet.com/article/hands-on-a-case-for-the-raspberry-pi-zero-with-camera/

Pack a Raspberry Zero and Screen Into an Altoids Container for a Lightweight Tiny Computer
http://lifehacker.com/cram-a-raspberry-zero-and-screen-into-an-altoids-tin-fo-1792394348

Best Five Raspberry Pi Zero Electronics Projects Which Make The Most Of Its Tiny Measurement

The Raspberry Pi is definitely the hobbyist option for Build-it-yourself electronic projects. The Raspberry Pi Zero, that’s around the measurements of a stick of chewing gum, is comparatively low priced and has it’s own special use examples though. There are ten of our most liked projects which make the most of its measurement.

1. Cram a Raspberry Pi Zero Into an Old-fashioned Game Controller

It is well known the Raspberry Pi makes an nice DIY computer game console. The setup process merely demands a matter of minutes, and the Raspberry Pi Zero is utterly efficient at coping with older computer games from the SNES age and perhaps earlier. The complete project is far better when the whole system is inside a controller.

Working example (ahem), this project utilizes a SNES controller, this one tackles the NES controller, and this one uses that good old original Xbox controller. However you intend to practice it, you will have a really slick little DIY classic video game console you can easily carry around wherever.

2. Build a Tiny Dongle Computer

While the Pi Zero makes a nice little computer as it is, it makes an even better dongle computer. By doing so, you can attach it to some other computer you have, then it will tether itself directly so you won’t need to include a USB or any networking.

The most wonderful thing of this project is the point you no longer need yet another PC mouse, display screen, or keyboard hanging out around. Simply just jam in into your standard desktop PC and you are fine.

3. Build the Planet’s Minutest (Potentially) MAME Cabinet

MAME cabinets are brilliant, but they are tremendous. For the complete opposite approach, you can make use of a Raspberry Pi Zero to make one that is almost as tiny as the Pi itself.

You may need a few items to build this sucker work, for example a 3D printed case, but in the end cabinet is extremely functional, which means you’ll have the best desk add-on in the office.

4. Make a Motion Sensing Digicam


source: http://instructables.com/id/Raspberry-Pi-Motion-Sensing-Camera/

The Raspberry Pi has been a top quality motion sensing camera, but the low profile of the Pi Zero makes it even better.

Employing the Raspberry Pi Zero, your motion sensing camera has a smaller foot print, indicating it can go in even tighter rooms. To illustrate, this one mounts to your window with a pair of suction cups, which is nearly as lightweight as it can get.

5. Play Any Simpsons Episode (or perhaps Any Television Program) At Random

If you have ditched cable and gone full streaming with your media, you might still miss the days of catching a random episode of your most enjoyable show on TV. The Raspberry Pi Zero can bring that back.

In this project, they use episodes of The Simpsons stored on an Sdcard. With a custom script, you possibly can press a button and it plays an episode arbitrarily. You may increase any media you’d like here, including several shows if you wanted, however, The Simpsons are a wonderful option.

Weekly Roundup #15 – New Maker Products



This week’s Weekly Roundup we’re seeing noise makers, more LEDs, no robots, the fastest RISC based Arduino compatible board and a new SBC that’ll raise the bar even further.

See below for links and also on my website.

More Info:

Weekly Roundup #15 – New Maker Products

Support Me:
Patreon: https://www.patreon.com/MickMake

Feedback Me:
Email: feedback@mickmake.com

Follow Me:
YouTube: https://www.youtube.com/c/MickMakes
Facebook: https://www.facebook.com/MickMakes/
Twitter: https://twitter.com/MickMakes
GooglePlus: https://plus.google.com/+MickMakes
Pinterest: https://www.pinterest.com/MickMakes/
Tumblr: https://mickmakes.tumblr.com/
Feed: http://feeds.specificfeeds.com/mickmake
Github: https://github.com/MickMakes

# Kickstarter
Caddy Board

1Bitsy & Black Magic Probe
https://www.kickstarter.com/projects/esden/1bitsy-and-black-magic-probe-demystifying-arm-prog
Firefly RK3399
https://www.kickstarter.com/projects/1771382379/firefly-rk3399-six-core-64-bit-high-performance-pl
The Yowler
https://www.kickstarter.com/projects/218568730/the-yowler-a-community-built-diy-noise-synth

# IndieGoGo
NaviPack
https://www.indiegogo.com/projects/navipack-lidar-navigation-module-reinvented#/
OverLord Plus
https://www.indiegogo.com/projects/overlord-plus-the-most-reliable-delta-3d-printer–2#/
The Tiny-TS
https://www.indiegogo.com/projects/the-tiny-ts-an-open-sourced-diy-touch-synthesizer#/

# CrowdSupply
AAduino
https://www.crowdsupply.com/johan-kanflo/aaduino
BES-AFE-1
https://www.crowdsupply.com/signal-lattice/bes-afe-1
Open-V
https://www.crowdsupply.com/onchip/open-v
HiFive1
https://www.crowdsupply.com/sifive/hifive1

# Others
AWS Greengrass
https://aws.amazon.com/greengrass/

# Tindie
868Mhz 915Mhz SX1276 Lora Module with ATmega328P
https://www.tindie.com/products/Armtronix/868mhz-915mhz-sx1276-lora-module-with-atmega328p/
Zero Long
https://www.tindie.com/products/microwavemont/zero-long-a-wider-oled-samd21g18a-boardw-microsd/
Flexible LED Array 32×32
https://www.tindie.com/products/robogeek78/flexible-led-array-32×32-ws2812-ws2813-/
WiThumb
https://www.tindie.com/products/HackARobot/withumb-arduino-compatible-wifi-usb-thumb–imu/
E2450
https://www.tindie.com/products/LOCUS_ENG_INC/e2450-lost-rc-aircraft-beacon/
OpenHome Security Gateway
https://www.tindie.com/products/vysocan/openhome-security-gateway-17-/

# AdaFruit, Seeed, SparkFun, DFRobot, DigiKey
RF Explorer 3G+
https://www.seeedstudio.com/RF-Explorer-3G%2B-IoT-for-Raspberry-Pi-p-2770.html
VL6180X Breakout
https://www.adafruit.com/products/3316
Pi Powered Times Square Traveler Pack
https://www.adafruit.com/products/3273
MAX30105 Breakout
https://www.sparkfun.com/products/14045
Flexible LED Array 16×16
https://www.dfrobot.com/index.php?route=product/product&path=48&product_id=1556&sort=p.date_added&order=DESC
Flexible LED Array 8×8
https://www.dfrobot.com/index.php?route=product/product&path=48&product_id=1557&sort=p.date_added&order=DESC

# The Cheap Side
Maple Leaf clone
http://www.banggood.com/STM32-ARM-Cortex-M3-Leaflabs-Leaf-Maple-Mini-Module-For-Arduino-p-1110609.html
RTL8710 WiFi Module
http://www.banggood.com/RTL-01-RTL8710-WIFI-Module-3V-3_6V-80MA-Far-Distance-Wireless-Transceiver-Module-p-1110579.html
Wemos D1 clone
http://www.banggood.com/Wemos-D1-Mini-Kit-Mini-NodeMcu-4M-Bytes-Lua-WIFI-Internet-of-Things-Development-Board-Based-ESP8266-p-1110584.html
ADS1015 12 bit ADC
http://www.banggood.com/ADS1015-12-Bit-Precision-Analog-To-Digital-Converter-ADC-Module-Development-Board-p-1110605.html
DIY Smoke Detector
http://www.banggood.com/DIY-Photoelectric-Smoke-Detector-Sensor-Alarm-Kit-Electronic-Training-Teaching-p-1110265.html
AD8232 ECG
http://www.banggood.com/AD8232-ECG-Pulse-Monitoring-Measurement-Sensor-Module-Kit-For-Arduino-p-1109781.html
1.44″ TFT
http://www.banggood.com/1_44-TFT-Full-Color-SPI-Serial-Port-Screen-Display-With-PCB-Backplate-p-1109762.html
2.2″ 320×240 TFT
http://www.banggood.com/2_2-320×240-TFT-Screen-LCD-Display-HAT-With-Buttons-IR-Sensor-For-Raspberry-Pi-3B-2B-B-p-1109780.html
1.3″ 128×64 OLED

1.30inch 128×64 SPI Interface OLED White,Blue


ESP32
http://www.banggood.com/ESP32-Development-Board-WiFiBluetooth-Ultra-Low-Power-Consumption-Dual-Cores-ESP-32-ESP-32S-Board-p-1109512.html
NodeMCU-32S
http://www.shenzhen2u.com/NodeMCU-32S
BME280 Atmospheric Sensor
http://www.elecrow.com/crowtail-bme280-atmospheric-sensor-2331.html
AK09911C Hall Sensor
http://www.icstation.com/cjmcu-9911-ak09911c-geomagnetism-hall-sensor-module-arduino-stm32-p-10573.html
4-Port USB hub
http://www.icstation.com/cjmcu-port-controller-module-electronic-components-p-10571.html

Source

IoT PCB considerations for Startups

Since IoT products are so cutting edge, you would think that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and dealing with a number of technical complications. This is incorrect.
But it doesn’t indicate IoT startups have a obvious route to fame. Facing them is numerous design and manufacturing factors to consider that are unique to these small products. These things to consider are required to be looked at for the fresh IoT product to gain success.

On the plus side, it’s very important for IoT startups to comprehend that the foundation for a successful new product does exist. This means that experience and knowhow concerning the design, fabrication and assembly of these complex products are readily available. And the best advice is for sensible IoT product entrepreneurs and forerunners to focus on the recommendations that veteran electronics manufacturing services or EMS vendors have to offer. These corporations in addition to their engineering employees have already conducted the job with groundbreaking IoT corporations in Silicon Valley participating in the first stages of this growing segment.

The PCB of an IoT device is another beast than the traditional one, which is noticeably larger and flat. IoT devices, conversely, consist mainly of either rigid-flex or flex circuit assemblies, which include their very own categories of design layout, fabrication and assembly things to consider and technicalities.

Layout

A primary thing to consider is to search for expert designers who’ve accomplished a great deal of rigid-flex PCB designs. PCB space for an IoT device is limited. So you would like the designer to have firsthand layout practical experience to effectively design vital elements on that modest space.

At the same time, virtually all IoT units are not fixed; they incur appreciable movement and twisting. Here, the expert designer plays a vital role in determining bend ratios and lifecycle iterations as a critical part of a design. Additional vital design layout things to consider involve signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are widely used on flex circuits to make certain elements mounted on the flex circuit continue to be tightly in position to stop movement.

An alternative thing to consider is through-hole element placement in rigid-flex circuits. Why is that very important? The majority of IoT units are founded on surface mount device placement. Yet , there might be through-hole elements, which are usually attached to either the rigid portion or the flex part of the board. Through-hole elements are often employed to connect input/output or I/O signals to the exterior world. Doing this, those signals can be displayed having an LCD or LED monitor. Through-hole element placement is a vital account in an IoT device as when applied to the flex portion of the board, appropriate stiffeners ought to be designed and implemented for ideal assembly.

Eventually in the layout category, the heat which elements bring in should be considered. IoT units are starting to be difficult with rigid-flex and flex circuits featuring approximately 12 – 14 layers. A few units are digital. Yet , more and more analog systems are being exercised in IoT systems. Analog circuitry delivers way more heat than digital ones. This indicates heat expansion as well as contraction rate are required to be taken into consideration. In tech lingo, this is actually called the Coefficient of Thermal Expansion or CTE and the good dealing with it.

Manufacturing

Deciding on the best fabricator is essential and is linked to the EMS partner you have picked out. The fabricator you desire must have IoT PCB fabrication experience. Among vital things to consider here are insuring sturdy adhesions between layers on both rigid and flex circuit sides, learning all the vital calculations and getting a solid knowledge of when current moves from the rigid side to the flex side.

Such fabricators also needs to possess an in-depth knowledge of exceptionally small components like 0201 and also 00105 device packages, package-on-package, and the use of fine-pitch ball-grid array or BGA packaged devices.

In addition they ought to have experience in designing boards with truly tight tolerances in terms of footprint for those types of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They need to have laser drills for via drilling with sizes of 5 mils or under mainly because these IoT products could be so modest that a standard drill size of 5 to 8 mils may not be sufficient. They may ought to go to a 3 mil, which means that you must have an advanced laser drilling capability in-house.

In case you are placing via-in-pad, it is a easy way to take advantage of the small land that is available on the rigid-flex board, but it creates trouble for assembly. If vias aren’t entirely planar or flat in shape, it may be a difficulty throughout the assembly of those tiny BGA packaged devices. This comes about because non-planar surfaces could endanger the integrity of solder joints.

At times via in pads leave bumps in the event they’re not cleaned appropriately after positioning the vias and gold finish at the top. In the event that there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices wouldn’t be a great joint. It could create spotty connections, which can be a larger issue to treat and work on. It all boils down to which EMS partner you’re using because they’re the ones who will decide on the fabrication house to make a thriving IoT product for you.

PCB Assembly

It’s vital to go to expert EMS companies that have effectively assembled IoT and wearable PCBs since they have special tooling and fixtures already obtainable, which are necessary for assembly to ensure that components are placed the right way, precisely and the printing is performed properly.

Printing can sometimes be a headache for IoT systems. If it’s a rigid-flex board, then there exists a change between thicknesses of the rigid and flex circuit portions, which suggests a special fixture is necessary to retain the complete rigid-flex board planar or entirely flat to help effective printing to become actually done.

Startups ought to be prepared to choose the ideal manufacturing partners and EMS firms. Doing this they can make sure that they’ve enough experience beforehand to get the multitude of design, fabrication and assembly details efficiently performed as they are key to a triumphant and prompt IoT product launch.

BALANCING ROBOT USING ARDUINO AND MPU6050



It a video of making of Balancing Robot Electronic part on a single PCB. This robot is been made using Arduino pro mini, MPU 6050, Motor driver IC L298D, Voltage Regulator LM7805 and some other basic electronic components.

Source

Internet of Things PCB considerations for Startups

Considering the fact that IoT appliances are so new, you would assume that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and suffering from a great deal of technical complications. This is far from the truth.
However it doesn’t imply IoT startups have a apparent path to stardom. Facing them is a number of design and manufacturing concerns which are unique to these small products. These things to consider need to be taken into consideration for the new IoT device to be successful.

On the plus side, it’s a consideration for IoT startups to know that the basic foundation for a successful cool product exists. What this means is experience and knowledge concerning the design, fabrication and assembly of these cutting-edge products are obtainable. Also, the best advice is for prudent IoT product business people and forerunners to follow the recommendations that skilled electronics manufacturing services or EMS companies provide. These companies and also their engineering employees have already completed this work with groundbreaking IoT corporations in Silicon Valley participating in the first stages of this rising industry.

The PCB of an IoT device is a special beast than the traditional one, which is much larger and flat. IoT devices, in comparison, are made up generally of either rigid-flex or flex circuit assemblies, which come with their own categories of design layout, fabrication and assembly things to consider and intricacies.

Layout

A top thing to consider is to search for skilled designers who have undertaken quite a lot of rigid-flex PCB designs. PCB space for an IoT device is tight. So you want the designer to have firsthand layout practical experience to correctly design key elements on that small space.

Besides that, most IoT gadgets are not stationary; they incur substantial movement and folding. Right here, the skilled designer plays a key role in working out bend ratios and lifecycle iterations as a important part of a design. Additional key design layout things to consider comprise signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are used on flex circuits to be certain that elements mounted on the flex circuit stay tightly in place to stop movement.

One additional aspect to consider is through-hole element placement in rigid-flex circuits. What makes that significant? A great deal of IoT devices are based on surface mount device placement. However , there can be through-hole elements, which are typically attached to either the rigid section or the flex portion of the board. Through-hole elements are in general useful to communicate input/output or I/O signals to the outer world. Like that, those signals can show up having an LCD or LED monitor. Through-hole element placement is a crucial thing to consider in an IoT device since when utilized on the flex part of the board, proper stiffeners ought to be designed and employed for appropriate assembly.

Then finally in the layout category, the high temperature that elements deliver is required to be deemed. IoT gadgets are increasingly challenging with rigid-flex and flex circuits featuring up to 12 to 14 layers. Several gadgets are digital. However , increasingly more analog systems are being utilized in IoT systems. Analog circuitry makes far more heat than digital ones. This suggests heat expansion and contraction rate should be considered. In tech lingo, it is known as the Coefficient of Thermal Expansion or CTE and the proper treatments for it.

Fabrication

Selecting the best fabricator is important and is linked to the EMS firm you have chosen. The fabricator you expect needs to have IoT PCB fabrication experience. Among key things to consider here are making sure robust adhesions in between layers on both rigid and flex circuit sides, understanding all the essential calculations and possessing a strong comprehension of when current moves from the rigid side to the flex side.

These fabricators also must get an in-depth know-how about tremendously tiny parts for instance 0201 and also 00105 device packages, package-on-package, and the use of fine-pitch ball-grid array or BGA packaged devices.

They also need to have knowledge of designing boards with fairly tight tolerances in terms of footprint for those types of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They need to have laser drills for via drilling with sizes of 5 mils or under since these IoT products could be so tiny that a common drill size of 5 to 8 mils may well not be all you need. They may require to go to a 3 mil, which means that you have to have an cutting-edge laser drilling capability on-site.

If you’re placing via-in-pad, it’s a easy way to take advantage of the small land which is available on the rigid-flex board, nevertheless , it produces difficulties for assembly. If vias are not fully planar or flat in shape, it will be hard through the assembly of those tiny BGA packaged devices. That’s because non-planar surfaces may threaten the integrity of solder joints.

At times via in pads leave bumps in cases where they’re not scoured properly after positioning the vias and gold finish at the top. When there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices wouldn’t be an excellent joint. It could create spotty connections, which can be a larger issue to treat and remedy. It all boils down to which EMS firm you are using because they’re the ones who will pick the fabrication facility to make a successful IoT product for you.

PCB Assembly

It’s crucial to head off to skilled EMS companies that have effectively assembled IoT and wearable PCBs since they have specialized tooling and fixtures readily obtainable, which are essential for assembly to make sure components are placed appropriately, precisely and the printing is completed effectively.

Printing can be a problem for IoT systems. If it’s a rigid-flex board, then you can find a difference between thicknesses of the rigid and flex circuit portions, which means a special fixture is required to retain the complete rigid-flex board planar or absolutely flat to allow effective printing to be carried out.

Startups should be all set to choose the correct manufacturing partners and EMS companies. In this manner they can make sure they’ve ample experience upfront to get the multitude of design, fabrication and assembly details effectively performed since they are essential to a triumphant and timely IoT product release.

DIY| Controlling AC Devices by 5V Relay



Warning!!
** you should take care of working with ac voltage on a breadboard and this is just for prototyping, if you’re willing to make a permanent system then you’ll need to implement it on a PCB. **

In this video you will learn how a dc relay works and how to use it on a breadboard to control any AC device with a switch and 5v power source.

You will need:
-5v Relay
-5v DC Power Source
-AC Device (To Control)
-Breadboard

Optional:
-Switch
-LED
-220 Ohm Resistor
-2-Pin Screw Terminal

Schematic and Requirements: http://blog.basseltech.com/controlling-ac-devices-by-5v-relay/

Visit us: http://BasselTech.com/

Source

Internet of Things PCB ways to care for Startups

Due to the fact IoT devices are so fresh new, you would think that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and going through a large amount of technical complications. This is incorrect.
However it doesn’t signify IoT startups have a straightforward approach to fame and fortune. Facing them is many different design and manufacturing issues to consider that are completely unique to these small products. These points should be taken into account for the fresh IoT device to reach their goals.

On the plus side, it’s a consideration for IoT startups to recognise that the basic foundation for a successful cool product does exist. It implies experience and knowhow regarding the design, fabrication and assembly of these cutting-edge products are available. And the best advice is for judicious IoT product entrepreneurs and leaders to take the recommendations that qualified electronics manufacturing services or EMS suppliers are offering. These corporations and their engineering team members have implemented this work with groundbreaking IoT businesses in Silicon Valley participating in the beginning of this emerging sector.

The PCB of an IoT unit is another beast than the traditional one, which is notably larger and flat. IoT units, in comparison, consist mainly of either rigid-flex or flex circuit assemblies, which include their own groups of design layout, fabrication and assembly points and subtleties.

Layout

A key consideration is to look for veteran designers who have performed a considerable amount of rigid-flex PCB designs. PCB space for an IoT unit is confined. So you want the designer to have direct layout practical experience to productively design essential elements on that modest area.

Also, nearly all IoT devices are not stationary; they sustain significant movement and turning. Here, the veteran designer plays a vital role in computing bend ratios and lifecycle iterations as a significant part of a design. Other essential design layout points consist of signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are utilized on flex circuits to make sure that elements mounted on the flex circuit continue to be firmly in position to avoid movement.

The next factor is through-hole part placement in rigid-flex circuits. What makes that pretty important? Most of IoT products are founded upon surface mount device placement. Yet , there might be through-hole elements, which are typically put on either the rigid portion or the flex portion of the board. Through-hole elements are generally employed to communicate input/output or I/O signals to the exterior world. Doing this, those signals can show up having an LCD or LED monitor. Through-hole part placement is a critical account in an IoT system due to the fact when used on the flex section of the board, suitable stiffeners ought to be designed and employed for good assembly.

Last of all in the layout category, the heat which elements generate has to be evaluated. IoT devices are becoming more intricate with rigid-flex and flex circuits featuring upwards of 12 to 14 layers. Several devices are digital. Yet , increasingly analog systems are being utilized in IoT systems. Analog circuitry makes significantly more heat than digital ones. Therefore , heat expansion as well as contraction rate must be evaluated. In tech lingo, it is often called the Coefficient of Thermal Expansion or CTE and the good management of it.

Manufacturing

Finding the right fabricator is essential and is linked to the EMS company you have picked out. The fabricator you desire needs to have IoT PCB fabrication experience. Among essential points here are guaranteeing reliable adhesions in between layers on both rigid and flex circuit sides, realizing all of the important calculations and possessing a good comprehension of when current moves from the rigid side to the flex side.

These fabricators also needs to possess an in-depth expertise in extremely small-scale components for example 0201 as well as 00105 device packages, package-on-package, and the use of fine-pitch ball-grid array or BGA packaged devices.

They even should have experience of designing boards with highly tight tolerances in terms of footprint for those sorts of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They need to have laser drills for via drilling with sizes of 5 mils or under mainly because these IoT devices could be so tiny that a typical drill size of 5 to 8 mils might not be adequate. They may ought to go to a 3 mil, which means you will need to have an leading-edge laser drilling capability in house.

If you’re placing via-in-pad, it is a fantastic way to make use of the small real estate that is available on the rigid-flex board, yet it creates trouble for assembly. If vias aren’t totally planar or flat in shape, it could be difficult over the assembly of those tiny BGA packaged devices. This comes about because non-planar surfaces might risk the integrity of solder joints.

At times via in pads leave bumps in the event that they’re not scoured the proper way after putting the vias and gold finish on the top. In case there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices may not be a perfect joint. It could create irregular connections, which can be a bigger issue to handle and solve. It all boils down to which EMS company you’re using because they’re the ones who will discover the fabrication facility to make a profitable IoT device for you.

PCB Assembly

It’s essential to look at veteran EMS companies that have properly assembled IoT and wearable PCBs as they have specialized tooling and fixtures already available, which are necessary for assembly to ensure that components are placed effectively, exactly and the printing is made perfectly.

Printing can be a obstacle for IoT systems. If it’s a rigid-flex board, then there does exist a difference between thicknesses of the rigid and flex circuit portions, which means a special fixture is required to keep the complete rigid-flex board planar or entirely flat to make effective printing to become realized.

Startups should really be geared up to opt for the most suitable manufacturing partners and EMS enterprises. This way they can ensure that they have got adequate experience upfront to get the multitude of design, fabrication and assembly details correctly performed since they are crucial to a prosperous and on time IoT product release.

Arduino Tutorial #1 – Getting Started and Connected!



Follow this link for a Free Arduino Introductory course:
https://programmingelectronics.com/mj_lorton
——————— Click “Show more” ——————————-
Please support my content creation by using my Amazon Store:
http://astore.amazon.com/m0711-20

The first Arduino tutorial on getting started and connecting it to your PC.
Follow this link for a Free Arduino Introductory course:
https://programmingelectronics.com/mj_lorton
——————— Click “Show more” ——————————-
My website and forum:- http://www.mjlorton.com
Donations and contributions:- http://www.mjlorton.com
My techie channel MJLorton – Solar Power and Electronic Measurement Equipment – http://www.youtube.com/MJLorton
My Techie Amazon Store: http://astore.amazon.com/m0711-20
My other channel VBlogMag – For almost any topic under the sun! – http://www.youtube.com/VBlogMag
My VBlogMag Amazon Store: http://astore.amazon.com/vblogmag-20
———————————————————————–

Arduino Site: http://www.arduino.cc/
Arduino software / IDE: http://arduino.cc/en/Main/Software
Arduino forum: http://arduino.cc/forum/

In this video I cover the following:

* What is Arduino?
* What is a sketch?
* What is the Arduino (software) IDE (interactive development environment) arduino-1.0.1
* Arduino philosophy
* We take a look at the Arduno hardware.
* I cover how to download the Arduino Software and drivers and then how to install them.
* What happens when the Arduino USB device driver fails and how to solve it.
* I upload a sketch to the Arduino UNO R3 to test it and blink an LED.
* I discuss the project for tutorial #2, a voltmeter with Min Max Ave.
* I talk about the Sparkfun serial enabled 16 x 2 LCD and the challenges it poses.

Arduino Uno R3 features:

* ATmega328 micro controller
* Input voltage – 7-12V
* 14 Digital I/O Pins (6 PWM outputs)
* 6 Analogue Inputs
* 32k Flash Memory
* 16Mhz Clock Speed

Handy websites:
http://www.toddfun.com/
http://www.arduino.cc/
http://tronixstuff.wordpress.com/
http://www.timnolan.com
http://www.timnolan.com/index.php?page=arduino-ppt-solar-charger

Source

IoT PCB considerations for Startups

As IoT products are so recent, you would believe that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and struggling with a good deal of technical headaches. That is most certainly a fallacy.
But it doesn’t imply IoT startups have a straightforward path to fame and fortune. Facing them is many design and manufacturing points to consider which are distinctive to these small products. These things to consider must be factored in for the fresh IoT device to reach their goals.

On the plus side, it’s very important for IoT startups to find out that the basic foundation for a successful awesome product exists. This suggests experience and knowledge regarding the design, fabrication and assembly of these innovative products are existing. Also, the best advice is for wise IoT product business owners and forerunners to pay attention to the recommendation that skilled electronics manufacturing services or EMS companies are offering. These businesses as well as their engineering staffs already have performed this work with groundbreaking IoT firms in Silicon Valley entering into the first stages of this surfacing industry.

The PCB of an IoT unit is a unique beast than the traditional one, which is substantially larger and flat. IoT gadgets, in comparison, comprise mostly of either rigid-flex or flex circuit assemblies, which come with their own sets of design layout, fabrication and assembly things to consider and technicalities.

Layout

A key thing to consider is to search for experienced designers who have finished loads of rigid-flex PCB designs. PCB space for an IoT unit is limited. So you want the designer to have directly layout experience to appropriately design important parts on that little space.

On top of that, most IoT units are not fixed; they get extensive movement and twisting. Here, the experienced designer plays a primary role in computing bend ratios and lifecycle iterations as a significant part of a design. Additional important design layout things to consider involve signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are employed on flex circuits to make certain parts connected to the flex circuit continue being tightly in place to stop movement.

An additional focus is through-hole component positioning in rigid-flex circuits. Why is that essential? Lots of IoT appliances are based on surface mount device(SMD) placement. Nevertheless , there might be through-hole parts, which are often affixed to either the rigid portion or the flex area of the board. Through-hole parts are normally useful to connect input/output or I/O signals to the exterior world. That way, those signals can be shown having an LCD or LED monitor. Through-hole component placement is an important consideration in an IoT unit simply because when attached to the flex portion of the board, proper stiffeners should be designed and employed for appropriate assembly.

Then finally in the layout category, the heat that parts deliver ought to be thought about. IoT units are becoming more sophisticated with rigid-flex and flex circuits featuring as many as 12 – 14 layers. Some units are digital. Nevertheless , gradually more analog products are being utilized in IoT products. Analog circuitry causes way more heat than digital ones. So this means heat expansion and also contraction rate should be considered. In tech lingo, it is known as the Coefficient of Thermal Expansion or CTE and the proper management of it.

Manufacturing

Selecting the most appropriate fabricator is significant and is linked to the EMS partner you have determined. The fabricator you’d like must have IoT PCB fabrication experience. Among important things to consider here are making sure effective adhesions between layers on both rigid and flex circuit sides, figuring out all of the significant calculations and possessing a great know-how about when current transfers from the rigid side to the flex side.

These fabricators also have to possess an in-depth knowledge of really miniature components like 0201 as well as 00105 device packages, package-on-package, and the employment of fine-pitch ball-grid array or BGA packaged devices.

In addition, they ought to have experience with designing boards with extremely tight tolerances in terms of footprint for those kinds of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They should have laser drills for via drilling with sizes of 5 mils or under since these IoT products could be so little that a normal drill size of 5 to 8 mils would possibly not be adequate. They may ought to go to a 3 mil, meaning you will need to have an superior laser drilling capability indoors.

In case you are placing via-in-pad, it is a fantastic way to make use of the small land that is available on the rigid-flex board, however , it produces trouble for assembly. If vias are not entirely planar or flat in shape, it becomes a difficulty during the assembly of those tiny BGA packaged devices. That’s because non-planar surfaces can put at risk the integrity of solder joints.

Oftentimes via in pads leave bumps in case they’re not scoured effectively after installing the vias and gold finish at the top. In cases where there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices may not be an excellent joint. It might create irregular connections, which might be a larger issue to cope with and improve. It all boils down to which EMS partner you are using because they’re the ones who will select the fabrication plant to make a thriving IoT device for you.

PCB Assembly

It’s very important to head off to experienced EMS companies that have properly assembled IoT and wearable PCBs as they have special tooling and fixtures readily obtainable, which are needed for assembly to ensure that components are placed perfectly, exactly and the printing is made perfectly.

Printing is usually a issue for IoT products. If it’s a rigid-flex board, then there is a difference between thicknesses of the rigid and flex circuit portions, which implies a special fixture is needed to retain the complete rigid-flex board planar or fully flat to allow for effective printing to become attained.

Startups really should be set to choose the right manufacturing partners and EMS companies. By doing this they can make sure they have got adequate experience ahead of time to get the multitude of design, fabrication and assembly details effectively performed because they are crucial to a successful and timely IoT product launch.

Onion Omega2 IoT Control Box



▼ Info and links below ▼

A little project demonstrating the use of the recently launched Onion Omega2 single board computer. Combined with the IFTTT service, it can control practically any internet-connected device.

Have feedback on this project? Ideas for another? Let me know in the comments!

► Blog post: http://frederickvandenbosch.be/?p=2345

For more videos, guides, projects and reviews:
► Website: http://frederickvandenbosch.be
► Facebook: https://www.facebook.com/frederickvandenbosch
► Twitter: http://twitter.com/f_vdbosch
► Instagram: http://www.instagram.com/f_vdbosch/
► G+: https://plus.google.com/u/0/+FrederickVandenbosch

Music:
Dance, Don’t Delay by Twin Musicom is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Source: http://www.twinmusicom.org/song/303/dance-dont-delay
Artist: http://www.twinmusicom.org

source

Top 4 interesting projects for the Raspberry Pi Zero W

1. Create a Raspberry Pi Zero AirPlay Speaker

While this project in the beginning requires using a Raspberry Pi Zero with a WiFi dongle attachment, the Zero W fully does away with the need for this gadget. In combination with a low-cost 5V light-weight battery, you can actually build yourself a cool, wireless AirPlay speaker for streaming music from your Apple product.

View the entire step-by-step at Hackster. https://www.hackster.io/fvdbosch/raspberry-pi-zero-airplay-speaker-d99feb

2. Create a Raspberry Pi Zero W desk clock

Because of the Pi Zero W’s wireless abilities, it’s easy to build yourself a desktop clock that’s accurate to within two or three milliseconds. Once you have all the parts (with a display that looks straight out of a Hollywood thriller), it is easy to hook up the clock via WiFi to the Network Time Protocol (NTP) and get to sleep well realizing you’re in sync with the remainder of the planet.

See the entire step-by-step instruction manual on Hackaday. https://hackaday.io/post/54276

3. Create your very own Raspberry Pi-powered R2-D2

For those who have always wanted to hack a toy R2-D2 into something a little bit more realistic, the Raspberry Pi Zero W is here to help. Les Pounder at TechRadar has published a tutorial for adding some wheels and attitude to the precious robot from the “Star Wars” world.

Research the step-by-step directions listed here. http://www.techradar.com/how-to/computing/how-to-build-your-own-r2-d2-with-the-raspberry-pi-zero-1310979

4. A Pi Zero W security camera

One of the many great obvious benefits to owning a Raspberry Pi Zero W is being able to remain connected to the online world in places lacking ethernet connection. For security camera systems, this new supplement is amazingly valuable.

At Raspberry Pi Spy, thorough guidelines have already been published to creating your individual Pi Zero W security camera. Better yet, there currently exists both a good way to mount your camera and a dedicated operating system known as motionEyeOS to tie it all together.

Research the entire step-by-step here. http://www.raspberrypi-spy.co.uk/2017/04/raspberry-pi-zero-w-cctv-camera-with-motioneyeos

New Products 11/2/2016



Othermill Pro – Compact Precision CNC + PCB Milling Machine (0:10) https://www.adafruit.com/products/2323?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts

Zero4U – 4 Port USB Hub for Raspberry Pi Zero v1.3 (1:23) https://www.adafruit.com/products/3298?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts

Mini Spy Camera With Trigger for Photo or Video (2:52) https://www.adafruit.com/products/3202?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts

Adafruit CP2104 Friend – USB to Serial Converter (6:50) https://www.adafruit.com/products/3309?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts

ESP32 WiFi-BT-BLE MCU Module / ESP-WROOM-32 (10:36) https://www.adafruit.com/products/3320?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts

—————————————–
Shop for all of the newest Adafruit products: http://adafru.it/new

Visit the Adafruit shop online – http://www.adafruit.com

Subscribe to Adafruit on YouTube: http://adafru.it/subscribe

Join our weekly Show & Tell on G+ Hangouts On Air: http://adafru.it/showtell

Watch our latest project videos: http://adafru.it/latest

New tutorials on the Adafruit Learning System: http://learn.adafruit.com/

Music by bartlebeats: http://soundcloud.com/bartlebeats
—————————————–

Source

IoT PCB considerations for Startups

As IoT devices are so cutting edge, you would believe that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and facing a good deal of technical complications. This is not true.
Nevertheless it doesn’t imply IoT startups have a certain way to stardom. Facing them is quite a few design and manufacturing factors to consider which are unique to these small products. These considerations are required to be considered for the fresh new IoT device to reach their goals.

On the plus side, it’s essential for IoT startups to recognise that the basic foundation for a successful cool product exists. This indicates experience and knowledge regarding the design, fabrication and assembly of such innovative products are existing. Also, the best advice is for heady IoT product enterprisers and innovators to look closely at the counsel that experienced electronics manufacturing services or EMS vendors have to give you. These businesses along with their engineering team members have previously implemented the task with revolutionary IoT businesses in Silicon Valley joining the beginning of this surfacing market.

The PCB of an IoT device is a different beast than the traditional one, which is considerably larger and flat. IoT units, on the flip side, comprise mainly of either rigid-flex or flex circuit assemblies, which come with their own groups of design layout, fabrication and assembly considerations and nuances.

Layout

A key concern is to seek out veteran designers who have accomplished many rigid-flex PCB designs. PCB space for an IoT device is confined. So you want the designer to have directly layout experience to correctly design crucial parts on that little space.

Additionally, nearly all IoT gadgets aren’t stationary; they get significant movement and folding. Right here, the veteran designer plays an important role in determining bend ratios and lifecycle iterations as a critical part of a design. Additional crucial design layout considerations incorporate signal trace thickness, number of rigid and flex circuit layers, copper weight and stiffener placement. Stiffeners are used on flex circuits to make certain parts attached with the flex circuit remain tightly in place to avoid movement.

Yet another aspect to consider is through-hole element placement in rigid-flex circuits. Why is that pretty important? Most IoT products are based on surface mount device placement. Nevertheless , there might be through-hole parts, which are commonly attached to either the rigid part or the flex part of the board. Through-hole parts are generally employed to communicate input/output or I/O signals to the outer world. Doing this, those signals can show up utilising an LCD or LED monitor. Through-hole element placement is a critical account in an IoT system as when applied on the flex area of the board, suitable stiffeners must be designed and employed for excellent assembly.

Lastly in the layout category, the heat that parts deliver ought to be deemed. IoT gadgets are ever more challenging with rigid-flex and flex circuits featuring over 12 – 14 layers. A few gadgets are digital. Nevertheless , increasingly more analog products are getting used in IoT products. Analog circuitry generates considerably more heat than digital ones. It implies heat expansion and then contraction rate are required to be thought about. In tech lingo, this is actually referred to as the Coefficient of Thermal Expansion or CTE and the right control over it.

Fabrication

Choosing the proper fabricator is very important and is linked to the EMS corporation you’ve picked. The fabricator you want should have IoT PCB fabrication practical experience. Amongst crucial considerations here are insuring strong adhesions between layers on both rigid and flex circuit sides, realizing all the crucial calculations and obtaining a strong comprehension of when current moves from the rigid side to the flex side.

Such fabricators also need to get an in-depth knowledge of very miniature parts similar to 0201 and 00105 device packages, package-on-package, and the use of fine-pitch ball-grid array or BGA packaged devices.

Additionally they must have experience of designing boards with extremely tight tolerances in terms of footprint for those sorts of BGA devices, in terms of up-to-date capabilities like laser direct imaging for putting the solder mask on the board. They ought to have laser drills for via drilling with sizes of 5 mils or under as these IoT products could be so compact that a standard drill size of 5 to 8 mils probably won’t be enough. They could require to go to a 3 mil, which means you must have an cutting-edge laser drilling capability on-site.

If you’re placing via-in-pad, it’s a great way to make use of the small land which is available on the rigid-flex board, however , it presents trouble for assembly. If vias aren’t entirely planar or flat in shape, it could be tricky throughout the assembly of those tiny BGA packaged devices. That is because non-planar surfaces might put in danger the integrity of solder joints.

At times via in pads leave bumps in the event they’re not scrubbed appropriately after positioning the vias and gold finish on the top. When there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices would not be an ideal joint. It may create irregular connections, which might be a larger issue to handle and repair. It all boils down to which EMS corporation you’re working with because they’re the ones who will pick the fabrication house to make a successful IoT device for you.

PCB Assembly

It’s very important to take a look at veteran EMS companies that have efficiently assembled IoT and wearable PCBs because they have unique tooling and fixtures already existing, which are important for assembly to make sure components are placed the proper way, accurately and the printing is made in the right way.

Printing generally is a problem for IoT products. If it’s a rigid-flex board, then you will find there’s a change between thicknesses of the rigid and flex circuit portions, that means a special fixture is required to retain the complete rigid-flex board planar or absolutely flat to get effective printing to become executed.

Startups ought to be geared up to choose the proper manufacturing partners and EMS companies. This way they can make sure they have adequate experience beforehand to get the multitude of design, fabrication and assembly details successfully performed since they are crucial to a triumphant and timely IoT product release.

RPi Interactive Graphics Controller



For more details about this project, please click this link to see the full article: http://www.allaboutcircuits.com/projects/building-raspberry-pi-controllers-part-7-an-interactive-graphics-controller/

The Raspberry Pi is a versatile SBC (Single Board Computer) that allows a variety of embedded controllers to be built. The projects discussed in this hands-on series are a small example of the electronic devices and gadgets that can be built with a Raspberry Pi. For more information, as well as all the latest All About Circuits projects and articles, visit the official website at http://www.allaboutcircuits.com/

Subscribe on YouTube: https://www.youtube.com/c/AllAboutCircuitsVideo
Like us on Facebook: https://www.facebook.com/allaboutcircuits
Follow us on Twitter: https://twitter.com/AllAboutCircuit
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Follow us on GooglePlus: https://plus.google.com/b/102476148263859151067/+AllaboutcircuitsVideo/posts
Contact us: http://eetech.com/

source

Best Four fun projects for the Raspberry Pi Zero W

1. Make a Raspberry Pi Zero AirPlay Speaker

While this project in the beginning demands using a Raspberry Pi Zero with a WiFi dongle add-on, the Zero W fully eradicates the necessity for this add-on. Together with a low priced 5V easily portable battery, it is simple to build yourself a amazing, wireless AirPlay speaker for streaming music from your Apple device.

Check out the whole step-by-step from Hackster. https://www.hackster.io/fvdbosch/raspberry-pi-zero-airplay-speaker-d99feb

2. Make a Raspberry Pi Zero W desk clock

As a result of Pi Zero W’s wireless capabilities, anybody can build yourself a desktop clock that’s accurate to within just a few milliseconds. Once you have all the parts (with a display that looks straight out of a Hollywood thriller), it is possible to hook up the clock via WiFi to the Network Time Protocol (NTP) and sleep nicely knowing you are in sync with the rest of the world.

Look at the whole step-by-step suggestions on Hackaday. https://hackaday.io/post/54276

3. Create your personal Raspberry Pi-powered R2-D2

For those who have always wanted to hack a toy R2-D2 into something a bit more reasonable, the Raspberry Pi Zero W has arrived to collaborate. Les Pounder from TechRadar has shared a instruction for adding some wheels and attitude to the precious robot from the “Star Wars” world.

Check out the step-by-step manuals right here. http://www.techradar.com/how-to/computing/how-to-build-your-own-r2-d2-with-the-raspberry-pi-zero-1310979

4. A Pi Zero W security camera

One of the several large distinct benefits to using a Raspberry Pi Zero W is its capacity to remain connected to the internet in places with no ethernet connection. For security camera products, this new addition is amazingly advantageous.

Over at Raspberry Pi Spy, finely detailed guidelines have already been shared to creating your very own Pi Zero W security camera. Better yet, there already exists both a good way to mount your camera and a dedicated OS known as motionEyeOS to tie it as a whole.

Check out the whole step-by-step here. http://www.raspberrypi-spy.co.uk/2017/04/raspberry-pi-zero-w-cctv-camera-with-motioneyeos

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