Save Your Food with Arduino Freezer Temperature Sensor

Save Your Food with Arduino Freezer Temperature Sensor

“Arduino Freezer Temperature Sensor” is an Arduino based project which works as an indicator to notify you when the freezer isn’t ...


Whisper Trigger – An Ultra-low Power Voice Detector

Whisper Trigger – An Ultra-low Power Voice Detector

For long period of time, we were using our muscles and bodies to control various machines.


SnapEDA launches on-demand PCB symbols service

SnapEDA launches on-demand PCB symbols service

SnapEDA launched a new on-demand PCB symbols service.


A very simple DIY solar-powered USB charger

A very simple DIY solar-powered USB charger

Raj @ embedded-lab.com tipped us with his latest project.


Circuit provides cold-junction compensation

Circuit provides cold-junction compensation

Mark Maddox @ edn.com has a design idea on cold-junction compensation using AD7708.


Analog front-end IC linearizes sensors

Analog front-end IC linearizes sensors

Susan Nordyk @ edn.com discuss about LTC2986 which is able to digitize and linearize a combination of temperature sensors in...


CO2, temperature and humidity monitor

CO2, temperature and humidity monitor

An open source CO2 monitoring project from Roving Dynamics: The project described below uses a MH-Z16 or MH-Z19 CO2 sensor and a...


30A, PCB-level supply monitor has integrated 300 microΩ sense resistor

30A, PCB-level supply monitor has integrated 300 microΩ sense resistor

Designed to simplify board-level energy measurements, the LTC2947 power and energy monitor for 0V to 15V DC supply rails...


7 Segment LED Based SPI Display using 74HC595

7 Segment LED Based SPI Display using 74HC595

Single Digit Big Display module using 74HC595 IC project will display large size 7 segment single digit number.


OPT3002 – Light/digital IC provides optical power measurements

OPT3002 – Light/digital IC provides optical power measurements

By Graham Prophet @ edn-europe.com: Distributor Mouser Electronics has Texas Instruments’ OPT3002 light-to-digital sensor; the d...


Using A Bench Power Supply To Charge Lithium Ion Batteries

Using A Bench Power Supply To Charge Lithium Ion Batteries

David Jones has another useful video tutorial about how to safely charge Lithium Ion and Lithium Polymer batteries with a bench...


Tools for the Electronics Hobbyist Part 1- Graphical Components Tester

Tools for the Electronics Hobbyist Part 1- Graphical Components Tester

When I started to deal with Chinese electronics suppliers from websites like Alibaba, Aliexpress and Taobao, I discovered that...