mLRS provides an Arduino sketch which enables ESP32 development modules to be used as a wireless bridge providing communication between the Tx module and a computer running GCS software such as Mission Planner. This allows for the operator to control the vehicle and have a GCS connection without being tethered to the computer.
Sketch location: here
Any ESP32 module will work, however, several modules are pre-configured and available as options within the sketch. These include:
- Espressif ESP32-DevKitC V4
- NodeMCU ESP32-Wroom-32
- Espressif ESP32-PICO-KIT
- Adafruit QT Py S2
- Lilygo TTGO-MICRO32
- M5Stack M5Stamp C3 Mate
- M5Stack M5Stamp Pico
- M5Stack M5Stamp C3U Mate
- M5Stack ATOM Lite
The serial port of the Tx module will need to be connected to the ESP32 module using the pins specified in the boards.h file located here.
Configuration is done within the sketch, the following options can be set:
- Module Type
- Serial Level
- Wireless Protocol
- WiFi SSID
- WiFI Password
- IP Address
- TCP Port
- UDP Port
- WiFi Channel
- WiFi Power
- Bluetooth Device Name
- Baudrate