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EDPA Bluetooth Module
Product Description
This is an easy-to-use bluetooth/UART interface module based on a CSR bluetooth IC. It uses bluetooth V2.1 and has an onboard antenna and UART interface that is programmed using AT commands.
Specifications
Supply Voltage | 3V3 |
Operating Current |
30 mA max (while pairing) 6 mA max (paired but inactive) 10 mA max (paired and active) |
Baud Rate | 9 600 (default - see below for others) |
Physical Size | 26.7 mm x 13 mm x 2.2 mm |
AT Commands
The module uses a standard AT command system. A carriage return and new line character (\r\n) are required after each command.
Command | Description | Parameters | Example |
AT | Test | n/a | |
AT+RESET | Perform device reset | n/a | |
AT+VERSION | Get firmware version | n/a | |
AT+DEFAULT | Restore default settings | n/a | |
AT+LADDR | Get device address | n/a | |
AT+LADDR | Set device address | Standard MAC address | AT+LADDR11:22:33:44:55:66\r\n |
AT+NAME | Get device name | n/a | |
AT+NAME | Set device name | ASCII device name | AT+NAMEElectrothing\r\n |
AT+ROLE | Get device role (master / slave) | n/a | |
AT+ROLE | Set device role (master / slave) | 0 = slave, 1 = master | |
AT+PIN | Get device pin * | n/a | |
AT+PIN | Set device pin | 4-digit device pin | AT+PIN1234\r\n |
AT+BAUD | Get baud rate | n/a | |
AT+BAUD | Set baud rate | Baud rate code ** | AT+BAUD5\r\n |
* default pin is 1234 ** see table below for baud rate codes |
Baud Rate Codes
Code | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C |
Baud Rate | 1 200 | 2 400 | 4 800 | 9 600 | 19 200 | 38 400 | 57 600 | 115 200 | 230 400 | 460 800 | 921 600 | 1 382 400 |