It is a standard INA219 module but this has an isolated measured voltage from the MCU.

If the temperature measured by DS18B20 is above the predefined threshold, it turns the fan on automatically unless the piezodisk is pressed.

Arduino and Raspberry Pi. Sensing motion, temperature, vibration, VOC and CO2, altitude, current, and voltage. Powered by 120VAC and relays.

Arduino Uno-based electronic weighing machine by 5-wire 3 kg load cell.

A fire-monitoring and crowdsourcing tool that will allow local fire managers to respond to wildfires.

Build your own high-quality water sensor to monitor your pool or spa, using the Amazon Alexa to check on the status of your pool.

This is a 360 radar using an ultrasonic sensor that saves data and encodes them onto an image.

Open source Smart energy monitor with some new features like Terminal Commands, Readings Logger, and Data Plotting.

Air Quality License Plate Holder uses air quality sensor attaching to the vehicle to monitor the air quality through out the city.

A project that speaks on behalf of mother nature. It is real time air quality monitoring device.

Smart traffic control for more livable cities.

This is a low cost, modular smart board with wireless capabilities.

Water quality, anywhere, anytime!

A fall detection system based on Arduino, Windows 10 and Microsoft Azure