Month: June 2017 (page 1 of 4)

How to panelize PCBs in Eagle CAD

How to panelize a finalized PCB board for production in Eagle CAD.


Internet of Things PCB ways to care for Startups

Given that IoT products are so new, you would consider that getting an IoT printed circuit board (PCB) project off the ground starts by reinventing the wheel and dealing with a whole lot of technical problems. That is most certainly false.
But it doesn’t imply IoT startups have a certain road to stardom. Facing them is a considerable number of design and manufacturing points to consider which are completely unique to these small products. These considerations ought to be thought about for the fresh IoT device to ensure success.

On the plus side, it’s necessary for IoT startups to be aware of that the basic foundation for a successful new product exists. This means experience and knowledge involving the design, fabrication and assembly of these kinds of complex products are accessible. Also, the most sage advice is for sensible IoT product business owners and creators to look closely at the recommendation that qualified electronics manufacturing services or EMS suppliers have to give. These corporations along with their engineering employees already have accomplished the job with groundbreaking IoT businesses in Silicon Valley going into the early stages of this coming segment.

The PCB of an IoT device is a special beast than the traditional one, which is a great deal larger and flat. IoT gadgets, alternatively, consist largely of either rigid-flex or flex circuit assemblies, which include their very own groups of design layout, fabrication and assembly considerations and nuances.


A primary thing to consider is to try to find expert designers who’ve completed lots of rigid-flex PCB designs. PCB space for an IoT device is tight. So you want the designer to have direct layout experience to efficiently design significant elements on that little room.

Likewise, almost all IoT products are not stationary; they get extensive movement and twisting. Right here, the expert designer plays a key role in determining bend ratios and lifecycle iterations as a important part of a design. Other significant design layout considerations 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 that elements connected to the flex circuit stay firmly constantly in place to stay away from movement.

One other concern is through-hole element positioning in rigid-flex circuits. How come is that important? Most IoT appliances are founded on surface mount device placement. But nonetheless , there could be through-hole elements, which are generally attached to either the rigid part or the flex area of the board. Through-hole elements are often helpful to connect input/output or I/O signals to the exterior world. That way, those signals can be exhibited using an LCD or LED monitor. Through-hole element placement is a vital factor in an IoT device since when utilized on the flex part of the board, suitable stiffeners should be designed and implemented for good assembly.

And lastly in the layout category, the high temperature which elements deliver must be deemed. IoT products are progressively more complex with rigid-flex and flex circuits featuring upwards of 12 – 14 layers. Some products are digital. But nonetheless , gradually more analog devices are being utilized in IoT devices. Analog circuitry creates far more heat than digital ones. Therefore , heat expansion plus contraction rate should be evaluated. In tech lingo, this is actually referred to as the Coefficient of Thermal Expansion or CTE and the correct therapy for it.


Selecting the best fabricator is critical and is linked to the EMS partner you have chosen. The fabricator you’re looking for has to have IoT PCB fabrication experience. Among significant considerations here are making sure sturdy adhesions in between layers on both rigid and flex circuit sides, knowing all of the essential calculations and having a great expertise in when current transfers from the rigid side to the flex side.

Such fabricators also needs to get an in-depth comprehension of very small-scale components similar to 0201 and 00105 device packages, package-on-package, and the utilization of fine-pitch ball-grid array or BGA packaged devices.

They even should have experience with designing boards with highly 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 as these IoT units could be so modest that a common drill size of 5 to 8 mils would possibly not be adequate. They may need to go to a 3 mil, which means that you will need to have an state-of-the-art laser drilling capability in house.

In case you are placing via-in-pad, it’s a good way to utilize the small real estate that is available on the rigid-flex board, nevertheless , it produces trouble for assembly. If vias aren’t 100 % planar or flat in shape, it becomes tricky during the assembly of those tiny BGA packaged devices. That’s because non-planar surfaces may put in danger the integrity of solder joints.

Sometimes via in pads leave bumps in the event that they’re not scoured thoroughly after installing the vias and gold finish on top. In the event there are bumps, then the solder joints in the assembly for those tiny BGA balls in those IoT devices might not be an ideal joint. It may create occasional connections, which can be a greater issue to address and fix. It all boils down to which EMS partner you’re using because they’re the ones who will decide on the fabrication facility to make a thriving IoT product for you.

PCB Assembly

It’s crucial to head off to expert EMS companies that have efficiently assembled IoT and wearable PCBs as they have unique tooling and fixtures already out there, which are necessary for assembly to assure components are placed correctly, exactly and the printing is finished effectively.

Printing might be a issue for IoT devices. If it’s a rigid-flex board, then you will find a difference between thicknesses of the rigid and flex circuit portions, which suggests a special fixture is needed to retain the complete rigid-flex board planar or totally flat to enable effective printing to become actually done.

Startups should really be prepared to decide on the correct manufacturing partners and EMS firms. In this manner they can be certain they have got enough experience in advance to get the multitude of design, fabrication and assembly details effectively performed because they are key to a thriving and timely IoT product roll-out.

Are Cheap Fitness Bands Worth It? (Riversong Wave HR)

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Best fitness trackers 2016

Right now, there are plenty of familiar brand names, from specialists Jawbone, Fitbit, Garmin and Withings to the likes of Samsung and Microsoft. Apple, LG, Samsung and the rest have also made band-style fitness tracking a key element of their best smartwatches.

All of them count steps, then calculate calories burned with varying levels of success. An increasing number of fitness bands also keep an eye on your resting heart rate, pulse rate during exercise, and how long and well you sleep.

These are our ten favourites, starting with the very best, and we’ve updated to reflect recent new arrivals and updates to the fitness band market.


Top 5 Best Fitness/Activity Trackers with Heart Rate 2016

A smartband with activity/fitness tracking is a wireless wearable device used for monitoring and tracking fitness-related metrics such as distance walked or run, calorie consumption, sleep, steps climbed and in the case with this top 5 list, heartbeat. The term smartband, fitness tracker, or activity tracker is primarily used for dedicated electronic monitoring devices that are synced to a your smartphone or tablet for long-term data tracking, and fitness goals.


Don’t Trust that Fitness Band’s Heart Rate Reading

WSJ’s Joanna Stern visits the cardiologist to compare heart-rate readings of new fitness bands to an EKG. Buyer beware! Photo/Video: Drew Evans/The Wall Street Journal

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Best Fitness Tracker Deals 2017 – Monitor Sleep & Heart Rate!

Want to know the best fitness tracker for 2017 thats also one of the cheapest? Watch the video and find out!
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In this video The Deal Guy has found the two best fitness tracker available in 2016. In this unboxing and tech reviews I have found the best activity tracker that monitors your sleep and heart rate! This iWOWNfit i6 is one of the best smart wristband i have found!

I hope you like this fitness tracker deal that is very similar to a fitbit! Fitness is a big thing in 2017 and this fitness band is amazing! Don’t miss this best daily deal!

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Best HR Smartband 2016 – Top 5 Heart Rate Fitness Trackers

Need a SmartBand to track your activity to reach your fitness goals? Need it to record your heart rate while you workout? Then check out 5 of the best fitness and activity trackers and smartbands available to buy in 2016.


$40 Fitness Band with Heart Rate Monitoring?? | Riversong Wave HR


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Onion Omega2 IoT Control Box

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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.

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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.

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.

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.

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.

LattePanda Running PlayStation One PSX Test Single Board Windows 10 Computer

LattePanda Specs
Processor: Intel Cherry Trail Z8300 Quad Core 1.8GHz.
Operation System: Full edition of Windows 10 / Linux.
Ram: 2GB DDR3L.
Storage Capability: 32GB.
USB: USB 3.0 And USB 2.0
WiFi and Bluetooth 4.0.
Co-processor: ATmega32u4.
GPIO: 2 GPIOs for Intel chip 20 GPIOs for Arduino.


Top Four amazing projects for the Raspberry Pi Zero W

1. Create a Raspberry Pi Zero AirPlay Speaker

While this project earlier calls for using a Raspberry Pi Zero with a WiFi dongle attachment, the Zero W effectively gets rid of the requirement for this item. Together with a cheap 5V lightweight battery, it is simple to build yourself a wonderful, wireless AirPlay speaker for streaming music from your Apple device.

Research the complete step-by-step at Hackster.

2. Create a Raspberry Pi Zero W desk clock

Because of the Pi Zero W’s wireless abilities, you can build yourself a desktop clock that’s accurate to within a couple milliseconds. Once you have all the components (with a display that looks straight out of a Hollywood thriller), you can connect the clock via WiFi to the Network Time Protocol (NTP) and relax nicely learning you’re in sync with the rest of the universe.

Read the complete step-by-step instruction manual on Hackaday.

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

For those who have always wanted to hack a toy R2-D2 into something a tad bit more realistic, the Raspberry Pi Zero W can be employed to collaborate. Les Pounder at TechRadar has shared a tutorial for adding some wheels and attitude to the beloved droid from the “Star Wars” universe.

Look into the step-by-step manuals below.

4. A Pi Zero W wireless security camera

One of the many significant obvious advantages to getting a Raspberry Pi Zero W is its ability to stay connected to the internet in places without an ethernet connection. For wireless security camera products, this new improvement is incredibly advantageous.

At Raspberry Pi Spy, precise manuals have already been shared to building up your own Pi Zero W wireless security camera. Better yet, there already exists both a good way to mount your camera and a committed operating-system called motionEyeOS to tie it altogether.

Look into the complete step-by-step here.

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