Bluetooth module HM-BT2201L Raspberry Pi 4 8GB Starter Kit with Official 7 Inch Touch Display 24/7 Customer Support:

24/7 Customer Support:

use only dimmable models to avoid premature failure or flickering issues

then download the Arduino IDE or MicroPython firmware tools

Leverage the integrated RGB LED by importing the onboard LED module and controlling color values through PWM registers

Bluetooth module HM-BT2201L Raspberry Pi 4 8GB Starter Kit with Official 7 Inch Touch Display 24/7 Customer Support:Bluetooth module HM BT2201LBluetooth Stereo Audio Receiver Module, 3V 5V for Amplifiers Sound Recorder and Sound Circuit Electronic Hobby Kit. This is a Bluetooth audio receiver module, transmitting MP3 and other common audio formats' audio signals. It's simple to set up and use, and once connected to another Bluetooth system such as your phone or laptop, it can receive and translate signals into an output format compatible with speakers. It has three