Datasheet

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Steps to configure the module as master device:

PIO11 is set to high.

2. Power on, and the module will enter into AT command mode.

3. Use hyper terminal or other serial console, set baud rate 38400, data 8 bit, stop bit 1, no parity,

no flow control.

4. Send “AT+ROLE=1\r\n”, if successful, it will return “OK\r\n”.

5. PIO is set to low, and power cycle, the module will be master device and automatically search

for slave device and do binding.

UART communication circuit