Onboard Raspberry Pi 40pin GPIO interface, suitable for Raspberry Pl series motherboards Onboard CP2102 USB to UART chip, convenient for serial debugging Export the UART control interface of the module, which is convenient to connect to the main control board such as Arduino/STM32 Onboard 4 LED indicators, easy to check the running status of the module Using LoRa spread spectrum technology, up to 81 channels are optional, the communication distance is longer, and the anti-interference ability is stronger RF chip: SX1262 Working frequency band: 850.125 - 930.125MHz Supporting antenna: 915MHz antenna (2dBi) Air rate: 0.3kbps-62.5kbps (programmable control) Transmit power: 22.0dBm (10/13/17/22dBm programmable control) Receive sensitivity: -147dBm (air rate 2.4kbps) Module power consumption Emission current: 133mA (instantaneous power consumption) Receive current: 11mA Sleep current: 2uA (LoRa module software shutdown) Communication interface: UART (TTL level) Baud rate range: 1200bps- 115200bps (default is 9600bps) Packet length: 240 Byte (32/64/128/240 Byte programmable) Cache capacity: 1000 Byte Measured distance: 5km (Test environment: clear and open, 2.5 meters above sea level, 5dBi antenna gain, 2.4kbps air rate) Supply voltage: 5V Logic level: 3.3VI5V Working temperature: -40-85Celsius Colour:blue Material:PCB Size:65 x 30.5MM Package Contents: 1 x SX1262 915 A Plug To Micro-Plug Cable 1 x 915MHz Antenna 1 x Screw Package