Did your device set AT+ADR=0 before? If your device cannot connect to the serial port, it is difficult for me to check your device configuration information.
Did your device set at + ADR = 0 before? If your device cannot be connected to the serial port, it is difficult for me to check your device configuration information.
Did your device set AT+ADR=0 before? If your device can't connect to the serial port, it is difficult for me to check your device configuration information.