Strictly speaking, a Theremin uses a pair of antennae that act as capacitors in a specific R/C circuit. Looking at ...

This project implements a smart traffic signal system using Arduino UNO, ultrasonic distance sensors, and LED signals. The system controls traffic signals at a junction by dynamically adjusting the ...

The most simple, but working, quadricopter flight controller from scratch, using Arduino Uno/Nano. - liourej/CodeDroneDIY ...