Smarter Home Energy Use with Open Source and Cheap Sensors.

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

Magic wand to paint with color light based on temperature.

Monitor to record temperature and humidity, store 24 hours history and display these in a graph. Battery level monitor screensave.

Just a simple infrared thermometer.

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

An adequate tool to keep in your First aid kit.