There's this Chinese company named Heltec, and they make a cool little development board that has an Espressif ESP32S3 (which has WiFi and Bluetooth), a 128x64 pixel OLED display and an SX1262 863-928 ...

Read, Write and Delete Messages (with I2C Keyboard or Phone). Asking Weather Report. Listening to other Trackers arround. Changing Display Eco Mode (turn off after 4 seconds) and Screen Brightness.

[Michael Lynch] recently decided to delve into the world of off-grid, decentralized communications with MeshCore, because being able to communicate wirelessly with others in a way that does not depend ...