A Pair of Bluetooth Transceiver Modules

Step 1: Connect via USB-to-serial module

Step 2: Open serial terminal software

Step 3: Select the correct COM port and connect

Pair

1. Take out one module, query and record its MAC address.

• Use command: `AT+MAC?`

• Example response: `+MAC:EC230915AA4D`

• This device is temporarily set as a Slave (it remains as Slave by default if not changed).

Downlaod: https://www.pibot.com/dls/pendantv4/ToolsUart.zip

2. Take out the other module.

• Use command: `AT+ROLE=1` to set it as Master.

• Use command to bind to the Slave's MAC address: `AT+BONDMAC=EC230915AA4D`

3. Install the Slave module on the pendant and the Master module on the mainboard. Setup complete.

After successful pairing and power-on, the blue indicator light will transition from slow blinking to rapid blinking .

just send the AT command:

AT+FACTORY\r\n

(\r\n is carriage return + line feed, hex 0x0D 0x0A.) The module will reply OK\r\n and all settings go back to default.

ecb02_at_commands_clean.pdf