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

A walking insect looking thing made from leftovers.

Make an Alexa clone using Raspberry Pi 3 and use it to control IOT RGB Lamp (Arduino Nano + ESP8266) that supports Philip Hue commands.

This simple music box starts playing when you knock on it.

Simple FM radio based on RDA5807M module and Arduino Pro Mini 3.3V.

Trying to simulate the Heisenberg Principle in a mint tin.

Just a simple infrared thermometer.