This device measures fine dust and NO2 concentration in the air while on the move and adds GPS coordinates to each measurement location.

With only an arduino board, two servos, and an hc-sr04, and some python, you can create a room scanner that is capable of showing depth!

This is a very precise scale for any weight up to 1.5 kg!

An Arduino based device to monitor the levels of combustible gases, carbon monoxide, relative humidity and temperature in the kitchen.

An Arduino-based digital scale with HX711 and VFD display.

Pulse induction metal detector, built on the Arduino Nano.

Monitoring temperature and humidity without using a WiFi connection. Suitable for a chicken coop.

This project is about a simple movement detector. Whenever any obstacle comes in a line (predefined) a light will glow.

FSM that allows to identify the direction of the object.

This fully functioning Geiger counter was designed after the PKE Meter from the 1980s Ghostbusters movie.

How to build an humidity and temperature meter with time display from an old voltage meter casing.

I’m on a mission to reduce the amount of noise my LulzBot Mini 3D printer makes. The stock fan is loud and it's either on or ON!

How long were we released from the gravity of the Earth? This machine measures how many seconds we are zero gravity state.