1.GT-38 wireless serial communication module is a new generation of multi-channel embedded wireless data transmission module. The wireless working frequency band is 433-458.5MHz, multiple channels can be set, the step is 100KHz, and there are 255 channels in total. The maximum transmit power of the module is 100mW (20dBm), the receiving sensitivity is -116dBm at 5000bps air baud rate, and the communication distance can be up to 1200 meters in the open field.

2.The module contains an MCU, users do not need to program the module separately, and various transparent transmission modes only need to send and receive serial data, which is convenient to use. The module adopts a variety of serial port transparent transmission modes, users can use AT commands to choose according to the requirements of use. The four modes FU1, FU2, FU3, FU4 in idle state, the average operating current is 3.6mA, 80μA, 16mA and 16mA, the maximum operating current is 100mA (at full power emission state)