22dBm LoRa Module RS485 DIP Form

This EWM22A-400R22D LoRa RF transceiver is a DIP-packaged module engineered for embedded industrial telemetry. It functions in the 410.125–493.125 MHz frequency range (default 433.125 MHz), outputs 22 dBm RF power, and supports up to 5 km wireless communication in open terrain. The module accepts DC 5V input and combines Semtech’s advanced RF IC with LoRa spread spectrum modulation — resulting in higher sensitivity, lower power usage, and more compact layout versus prior designs. Its integrated RS485 driver/receiver simplifies connection to industrial serial infrastructure. Supported operational features include air wake-up for remote activation, wireless configuration updates, carrier activity detection before transmission, automatic packet forwarding to extend mesh reach, adjustable packet size, and symmetric communication key handling. Designed as part of a unified family, it maintains full frequency and protocol alignment with the E22-T series for cohesive network design.