Day 74/100 - RFID relay control system on Raspberry Pi Pico 2 with MicroPython

Tap an authorized RFID card to toggle a 5V brushless fan ON or OFF via a relay module. Simple toggle logic — first tap turns fan on, next tap turns it off.

Stack: Raspberry Pi Pico 2 + MFRC522 + 1 Channel Active Low Relay + MicroPython

Code: https://github.com/kritishmohapatra/100_Days_100_IoT_Projects

https://preview.redd.it/0vg8or892nsg1.jpg?width=578&format=pjpg&auto=webp&s=73dc6b6a7b0a0e1d2d41b04a00d625703b4b79c6