Wiki - Bluetooth - Send message

Connection diagram. Password 0000 or 1234.

Send 123 via Bluetooth to your phone.

Arduino-bluetooth-controller.zip

Sample program:

Download example: file.ardublock | Open Online ArduBlock

Video:

Components from Aliexpress

LED

Button

Bluetooth HC-05

Potentiometer

Arduino Pro Mini

Arduino Nano

Arduino Uno

Arduino Uno R3

Arduino Mega

Arduino Leonardo

Bread board

Training set