Meshtastic is an open-source, off-grid communication project based on LoRa (Long Range) wireless technology. It is designed to enable point-to-point (P2P) or mesh network communication in environments without cellular networks or internet access. Utilizing ultra-low power hardware and license-free frequency bands, it supports long-range message transmission.
Meshtastic uses LoRa radios to communicate over unlicensed frequency bands (such as 433 / 470 / 868 / 915 MHz). Devices broadcast messages to form a multi-hop relay network and can connect to smartphone apps via Bluetooth. Each device functions as both a transmitter and a relay, forming a mesh network without relying on base stations or routers.