LoRa UART Module 30dBm Long Range

The E22-400T30D is a compact LoRa-enabled UART serial module engineered for dependable long-range wireless data transmission. It operates within the 410.125–493.125 MHz frequency range using LoRa spread spectrum modulation, delivering 30 dBm (1 W) RF output power. Compatible with standard TTL logic levels, it interfaces seamlessly with both 3.3 V and 5 V host systems. Connection is made via either screw-type spring terminals or SMA antenna port. Transmission latency per frame falls between 26 and 27 seconds under typical configurations. Built-in intelligence includes over-the-air wake-up triggering, real-time carrier-sense monitoring (CAD), and autonomous repeater behaviour. These allow dynamic network formation: nodes automatically join and extend relay paths, enabling true multi-hop topologies. Importantly, several independent networks — each with distinct spreading factor, bandwidth, and centre frequency — can function side-by-side without mutual disruption. Typical use cases span cold-chain logistics tracking across depots, flood-level monitoring along UK riverbanks, livestock GPS collars in hilly pastures, and structural health sensors embedded in bridges — all benefiting from extended range, low duty-cycle operation, and minimal external hardware dependency.