Add Bluetooth Low Energy (BLE) connectivity to your Raspberry Pi RP2040 project by adding an Adafruit AirLift ESP32 co-processor. The AirLift’s ESP32 module can be placed into either a WiFi mode (we’ve published a guide about using the AirLift’s WiFi mode with Pico here) or BLE mode, giving you the option of adding two different methods of wireless connectivity to your RP2040 project.
This guide will cover getting started using BLE to connect an RP2040 board with the Bluefruit LE Connect App along with examples for a UART echo server and wirelessly changing the color of a NeoPixel RGB LED.
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