This is a simple pager device that forms a LoRa mesh network with its peers, and passes encrypted messages to those in the same group. At its heart is a LoRa ESP32 module with a small OLED display ...

He even includes an STL file for a 3D printed case. If you need to send more than text, then this Voice-over-LoRa Mesh Network project may be more your style.

In an era where staying connected is paramount, Meshtastic emerges as a groundbreaking solution for those seeking reliable communication beyond traditional networks. This open-source project ...