Raspberry pi to Raspberry pi LoRa sx1278 communication Via Arduino Esp32 Serial communication

Data Flow- RPI -> <- ESP32(Arduino) -> <- LoRa SX1278 -> -----<- LoRa SX1278-> <- ESP32(Arduino) -> <-RPI Demo Video- https://youtu.be/7apXm8SlbFk?si=TTdfYNFo6x1Nw2ef 1. Enable Serial port with command- sudo raspi-config Interface Options → Serial Port → Enable → Serial Login shell → Disable Login shell over serial? → No Enable serial port hardware? → Yes Command- sudo reboot 2. command- pip install pyserial (if Needed) 3. port command- ls -l /dev/serial* /dev/ttyS* /dev/ttyAMA* 4. Connection and Circuit diagram- A. ESP32 ↔ Raspberry Pi (UART Communication) Raspberry Pi GPIO Connected to ESP32 Description GPIO14 (TXD) GPIO26 (RX) RPi TX ➜ ESP32 RX GPIO15 (RXD) GPIO27 (TX) RPi RX ⬅ ESP32 TX GND GND Common ground ✅ You are using SoftwareSerial on ESP32 pins 26 ...