This is the circuit my team and I built for my Junior Design Project. I decided to make a PCB for it.

Open Source Metal Detector

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

Pulse induction metal detector using an Arduino Nano, TC4420-driven IRF3205 coil switch, TL072 analog gain stages, LM393 detection comparator, 12V input power, and buzzer alert, optimized for low-noise sensing and separated analog/power grounds.

Welcome to your new project. Imagine what you can build here.