LoRa Communication with LilyGo T-Display and SSD1306 OLED

This project demonstrates the use of a LilyGo T-Display board equipped with an SX1278 LoRa module and an SSD1306 OLED screen to send and receive data using LoRa communication.

Features

• Sending LoRa packets: The board sends a message "heja" followed by a counter value every second.
• Receiving LoRa packets: The board listens for incoming LoRa messages and displays them on the OLED screen.
• RSSI Display: The Received Signal Strength Indicator (RSSI) for each received packet is displayed, helping to monitor signal quality.
• OLED Display: Uses the SSD1306 OLED to display messages and RSSI values.

Hardware Requirements

• LilyGo T-Display board with ESP32.
• SX1278 LoRa module.
• SSD1306 OLED display.

Pin Connections

• LoRa Module:
  • SCK: Pin 5
  • MISO: Pin 19
  • MOSI: Pin 27
  • SS: Pin 18
  • RST: Pin 14
  • DIO0: Pin 26
• SSD1306 OLED: I2C communication (default address: 0x3C).

Code Overview

1. LoRa Initialization: Initializes the LoRa module at 433 MHz and configures maximum transmission power.
2. OLED Display: Uses the Adafruit SSD1306 library to initialize and manage the OLED screen.
3. Packet Transmission: Sends a packet containing a message and a counter every 1 second.
4. Packet Reception: Receives incoming LoRa messages and displays them on the serial monitor and OLED display, along with the RSSI value.

Libraries Used

• LoRa: Handles LoRa communication.
• Adafruit_GFX and Adafruit_SSD1306: For OLED display control.

How to Run

1. Connect the hardware as per the pin connections mentioned.
2. Upload the provided code using the Arduino IDE.
3. View sent and received messages via the Serial Monitor and the OLED screen.

License

This project is open-source and available under the GPL-3.0 license.