ExpressOBD may also be of use to owners of "knockoff" ELM327 devices (ebay, Aliexpress) that do not trust the provided software. Note that drivers are still required to interface with the hardware.

This is a tester application in order to connect to OBD-II dongle via Bluetooth and get response. Since STN1110 commands are compatible with ELM327, you are able to use this application to make sure ...

[Alex Sidorenko] has built an open source OBD-II Adapter which provides a serial interface using the ELM327 command set and supports all OBD-II standards. We featured [Alex]’s inexpensive PIC ...