EByte E22-900T22D-V2 SX1262 LoRa 868MHz Module w/ SMA-K Antenna

Connect the module's TX, RX, VCC, and GND pins to your Arduino's serial pins, ensuring VCC matches 3.3V. Use a SoftwareSerial or HardwareSerial port. Configure the module's operating parameters—like frequency, transmit power, and air data rate—by sending specific AT commands over this UART connection. The default baud rate is typically 9600 or 115200, which you must verify in the datasheet. Always ensure proper logic level matching if your MCU operates at 5V.

Yes, but it requires specific firmware. The E22-900T22D-V2 operates as a pure LoRa transceiver using its proprietary UART command set. To join a LoRaWAN network like TTN, you must flash it with compatible firmware (if supported by EByte) or, more commonly, use it with a separate microcontroller (like an ESP32) that runs a LoRaWAN stack (e.g., LMIC). The microcontroller would send data to this module via UART commands, which the module then transmits as raw LoRa packets to a gateway.

At maximum 22dBm transmit power, the module draws a peak current of approximately 130mA. In receive mode, the current is around 15-20mA. The SX1262 chip supports deep sleep modes where current consumption can drop to below 1µA, dramatically extending battery life in periodic sensing applications. You must actively send the sleep command via UART to enter this ultra-low-power state. Always consult the official EByte datasheet for precise current values under your specific configuration of data rate and output power.