Optomyography is a novel, non-invasive, non-contact optical method to measure muscular signals of the human body for diagnosing muscular disorders. It is also considered as an emerging technique for making better human-machine interfaces. Matt, Amrit, and Maneesh conducted an optomyogram...

Do you wonder how to build a personal weather station with data logging capability? Well, Jesus Echavarria, a electronic engineer and DIY hardware maker from Spain, has shared the details of his design of a very professional-looking, full-featured, and portable weather data recorder...

This project describes a DIY wireless temperature and humidity monitor for kids’ or infant’s room using the Arduino platform, and inexpensive and easily available ASK transmitter/receiver modules. On the transmitting end, an Arduino nano senses the ambient room temperature and...

Mike Rankin created this tiny sensor board with an ARM Cortex M0+ microcontroller and OLED display: It’s pretty tiny so a 4 layer board made the whole job easier. The top and bottom are pretty much dedicated for components, layer1 are tracks and power traces, layer2 is a ground...

LTC3871 is a 100V/30V bidirectional two phase synchronous buck or boost controller, for 48V/12V automotive dual battery systems; it provides bidirectional DC/DC control and battery charging between the 12V and 48V boardnets, operating in buck mode from the 48V bus to the 12V bus or in...

A new low cost development board is available for pre-ordering at $20, it is called “pcDuino4 Nano”. pcDuino term comes from combining Mini PC with Arduino and it is a platform that runs PC-like OS such as Android ICS or Ubuntu. pcDuino boards can be used to learn programming and...

For long period of time, we were using our muscles and bodies to control various machines. However, with the growth of technology, things became much easier. We moved to the use of keypads and buttons to get jobs done. Today, touchscreens have appeared and made everything very simple to...

SnapEDA launched a new on-demand PCB symbols service. Get any schematic symbol and PCB footprint delivered in 24 hours. Just $29 SnapEDA follows IPC-7351B standards for its footprints, and a combination of IEEE-315 and its own standards for symbols. All models are created by our...