Bluetooth light switch
I want to build a Bluetooth light switch on an Arduino Uno with an HC-05 Bluetooth module and a single-channel relay.
Parts
Arduino UNO R4 Minima In stock
HC-05 Bluetooth Module In stock
5V Single Channel Relay Module In stock
Dupont Jumper Wire Kit (M-M, M-F, F-F, 20cm, 22AWG, ) In stock
USB Type-C to USB-A Cable (56kΩ pull-up, 1m, 22AWG) 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.