A very simple and easy to make thermometer for your room. Not that much to it but it looks cool.

Smarter Home Energy Use with Open Source and Cheap Sensors.

Arduino based 5" LCD touchscreen weather station with remote sensor unit.

We need to sense intensity of light in many of our IoT/home automation projects. Here I explain a simple implementation of ambient sensor.

Just a simple infrared thermometer.

An adequate tool to keep in your First aid kit.

Magic wand to paint with color light based on temperature.