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I have a HM-10 module connected to my Arduino Nano that I want to use to get data from a ELM327 OBDII.

I have been able to successfully connect to the ELM327 via:

AT

AT+RESET

AT+BAUD2

AT+ROLE1

AT+IMME1

AT+DISC?

AT+CON4823350035BB

I sent "ATZ" through my Serial Console and received nothing.

I then tried other baud rates, with no luck.

I suspected it needs to go to a specific characteristic. So I found the names of the services and characteristics via Light Blue application.

But I see long hex values, where the AT+CHAR command from the datasheet gives a much shorter example.

I have been able to connect via an ESP32 using the BLEDevice.h library - ideally I would like to use a smaller microcontroller such as the Nano.

Is this possible with the Nano?

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