Card-controlled power switch
I want to build a card-controlled switch on an Arduino Uno with an RC522 reader and a single-channel relay.
Parts
Arduino Uno R3 CH340G ATmega328P Board In stock
MFRC522 RFID Module In stock
5V Single Channel Relay Module In stock
MIFARE Classic 1K RFID Card In stock
Dupont Jumper Wire Kit (M-M, M-F, F-F, 20cm, 22AWG, ) In stock
USB Type A to B Cable (1m) In stock
Pins, wiring and code
The pin table, the wiring steps and the code for this build are in Soldr. Start this build on Soldr - you can change it before you buy.