WaqarAhmedTaj Hello,
To make two FSC-BT909 modules discover each other via SPP, please follow the steps below.
Issue explanation
The AT+SCAN=1 command alone is not sufficient. One module must be set to discoverable mode (broadcasting its presence), and the other module must perform a scan to find it.
Solution
Step 1: On Module A (the one you want to be found)
Turn on Bluetooth:
AT+BTEN=1
Set discoverable mode (BR/EDR for SPP):
AT+PAIR=1(enter BR/EDR discoverable mode)
Alternatively, you can use AT+PAIR=3 to enable both BR/EDR and BLE discoverable.
Step 2: On Module B (the one doing the scan)
Turn on Bluetooth:
AT+BTEN=1
Start scanning:
AT+SCAN=1
Now Module B should be able to find Module A. Once discovered, you can establish an SPP connection using standard SPP connection commands (e.g., AT+SPPCONN).
