Rename Arduino nano 33 BLE from characteristics

Question

I need to develop a small batch of items with the Arduino Nano BLE 33 with the ArduinoBLE library. Does anybody know the best way to name the things in a batch?

I tried to set up a BLE characteristic with no success:

void changeNameCharWritten(BLEDevice central, BLECharacteristic characteristic) 
{
    BLE.setLocalName(changeNameChar.value);
    BLE.setDeviceName(changeNameChar.value);
}

The argument is static.

Is there any other way to do it or do I need to write a specific firmware for each device?

Answer 1

The documentation does not suggest that changing the name is not possible.

Looking at the implementation of BLELocalDevice::advertise() I would assume that you need to call BLE.advertise() to update the name after you did set it.

To extend your example:

void changeNameCharWritten(BLEDevice central, BLECharacteristic characteristic) 
{
    BLE.setLocalName(changeNameChar.value);
    BLE.setDeviceName(changeNameChar.value);
    // BLE.stopAdvertise() might be needed before
    BLE.advertise()
}