Multiple Bluetooth Classic SPP connections

[Art-ut-Kia]

Hello,
I'm developing an ESP32-based project intended to gather data from several HC05-based sensors.
I've understood that BluetoothSerial.h library can manage only one device at a given time.
I also read that using ESP-IDF API would allow me to do what I want.
But for now, I couldn't manage to find example codes that connects simultaneously to several BT Classic devices.
Pls help
Jean-Paul

[Himanshudada1]

Yes, BluetoothSerial.h supports only one SPP connection at a time.
For multiple HC-05 connections simultaneously, you’ll need to use ESP-IDF Bluetooth Classic APIs instead of the Arduino wrapper.

ESP32 can handle multiple SPP clients, but you must manage separate connection handles and callbacks manually. If the implementation becomes complex, many teams usually hire ESP32 developer support for multi-device Bluetooth projects like this.