How to Connect Pi 4 and Esp32 via Bluetooth, Raspberry Pi 4 with ESP32, ESP32 Rpi4 bluetooth, Rpi4 ESP32 bluetooth Welcome to the next tutorial of our raspberry pi 4 programming course. A previous article covered connecting a Remote Control Radio Frequency Module (433 MHz) to a Raspberry Pi 4. To turn things on and off wirelessly, we programmed a Raspberry Pi 4 to act as a radio-frequency (RF) remote control. Ho ...