E22-400TBH-02 433MHz Lora Test & Development Board UART-to-USB 37dbm High-Power Long-Range 4.5-15V

The E22-400TBH-02 LoRa module selects its operating state by the configuration of pins M0 and M1 (via the module's short-circuit pads). Changing which pads are shorted yields four distinct modes to suit different use cases: 1) Mode 0 — General Mode (both short-circuit bubbles installed): UART and RF are enabled for transparent data transfer. The serial port is open, wireless is active, and the module supports special over-the-air command configuration. 2) Mode 1 — WOR Mode (M0 short-circuit bubble removed): The module operates in Wake-On-Radio (WOR) functionality and can be set up as a WOR sender or WOR receiver. This mode supports wake-on-air behavior. 3) Mode 2 — Configuration Mode (M1 short-circuit bubble removed): Enter this mode to access the module’s registers via the serial port for configuring and controlling the module’s working status. 4) Mode 3 — Deep Hibernation (both short-circuit bubbles removed): The module goes into hibernation to minimize power consumption. Use the M0/M1 pad settings to switch between these modes depending on whether you need transparent RF forwarding, low-power WOR operation, direct configuration access, or deep sleep.