BT modules configurations
Paired modules
Slaves
| Type |
Number |
ADDR |
| S |
01 |
98D3:61:F6B64A |
| S |
02 |
98D3:71:F5F110 |
| S |
03 |
98D3:71:F653B7 |
| S |
04 |
98da:50:01c819 NOT WORKING |
| S |
05 |
98D3:41:F5AE52 NOT WORKING |
Masters
| Type |
Number |
BIND |
| M |
01 |
98D3,61,F6B64A S01 |
| M |
02 |
98D3,71,F5F110 S02 |
| M |
03 |
98D3,71,F653B7 S03 |
| M |
04 |
98da,50,01c819 S04 NOT WORKING |
| M |
05 |
98D3,41,F5AE52 S05 NOT WORKING |
Procedure
- Choose your arduino board Warning! Some arduino’s board does not work very well: I advise you to use an official Arduino board or an ELEGOO
- Upload an empty sketch via the Arduino IDE
- Wire the BT module to the arduino board following the next table:
| BT |
Arduino |
| RXD |
0/RX |
| TXD |
1/TX |
| GND |
GND |
| VCC |
5V |
- Plug the arduino while holding down the little button on the BT module to enter in AT configuration
- Open the serial monitor and in the bottom right of the window change
New Line to Both, NL & CR and the bauds rate to 38400
- Now, type
AT: the BT module should answer OK
Slave
Start with the slave configuration
| Send |
Exepted answer |
Explaination |
AT+UART=9600,0,0 |
OK |
Set the bauds rate of the module |
AT+ROLE=0 |
OK |
Set the module as slave |
AT+ADDR |
****:**:****** |
Get the address of the module copy it in your notepad to keep it, you will need it |
Master
Configure the master to connect it to the slave
| Send |
Exepted answer |
Explaination |
AT+UART=9600,0,0 |
OK |
Set the bauds rate of the module |
AT+ROLE=1 |
OK |
Set the module as master |
AT+BIND=****,**,****** |
OK |
Configure the master to reach the slave’s adress In the slave address, replace the points by comas |