A review of Meshtastic, a cheap, encrypted, offgrid communicator using T-Beam devices. The review includes both positive and negative aspects of the project.
T-Beam Meshtastic is a wireless module with ESP32, LoRa, GPS, WiFi, and Bluetooth capabilities. It features a 0.96-inch OLED display and supports various frequency bands including 433/868/915/923Mhz.