The ESP32, Raspberry PI Pico, and M5Stack using MicroPython meet LoRaWAN.

Check out these articles for more information:

• M5Stack Atom Matrix: LoRaWAN node running MicroPython
• Tutorial: ESP32 running MicroPython sends data over LoRaWAN
• Raspberry Pi Pico: The RP2040 meets LoRaWAN

⚠️ Nowadays (20210215) you need to extend the MicroPython version to include support for encryption. To do that, check out this tutorial, and this repository lemariva/micropython-pico-mbedtls.

Use VSCode and the PyMakr extension to upload the code. If you are new on MicroPython, this tutorial can help you to install the firmware on a ESP32.

Follow these steps to deploy the project:

1. Rename the file config.sample.py to config.py
2. Configure the SPI pins to connect to the SX127x module. I've included the following example connections:
   • ES32 TTGO v1.0
   • M5Stack ATOM connected to LoRa v2.0 board.
   • M5Stack Fire connected to the LoRa868 Module.
   • Raspberry Pi Pico connected to LoRa v2.0 board.
3. Configure the devaddr, nwkey, and app of the ttn_config variable following the instruction from this link.

• Wemos® TTGO LORA32 868/915Mhz board.
• SparkFun® LoRa Gateway - 1-Channel board.
• M5Stack ATOM connected to LoRa v2.0 board. M5Stack Fire connected to the LoRa868 Module.

• 0.2v - first commit with LoRaWAN support

• Apache 2.0

Two screenshots from the TTN website:

• SX127x driver is based on: Wei1234c GitHub. The project was cleaned and made compatible with the Wemos® TTGO LORA32 868/915Mhz board.
• LoRaWAN connection is based on: Adafruit_CircuitPython_TinyLoRa