Nice to meet you.
I tried the project “SIM800 series Bluetooth AT commmands - Live Demo” using the SIM800C module and everything works fine.
I bought the SIM800H module and unfortunately it do not recognize the AT commands dedicated to Bluetooth. It is a small electronic board with on board the SIM800H and near the GSM module there is the Bluetooth antenna.
As I repeat, the SIM800H returns an Error every time I send an
AT command dedicated to the Bluetooth.
Since you have experience with the SIM800, I’ve been thinking of asking you the following questions:
1 - do you know why it does not recognize these commands? (for example: AT+BTPOWER=1)
2 - the SIM800H contain Bluetooth or not?
3 - should the firmware be updated?
I’m waiting for your answer
Thanks for your help and collaboration.