This board allows you to interface with your car's OBD-II bus. It provides a serial interface using the ELM327 command set and supports all major OBD-II standards, including CAN and JBUS. The board also provides a footprint that mates directly to our FTDI Basic. The DE9 (also known as "DB9") connector is compatible with our DE9 to OBD-II cable, listed below.
On-Board Diagnostics, Second Generation (OBD-II) is a set of standards for implementing a computer-based system to control vehicle emissions. It was first introduced in the United States in 1994 and became a requirement on all 1996 and newer US vehicles. Other countries, including Canada, parts of the European Union, Japan, Australia, and Brazil, adopted similar legislation. A large portion of the modern vehicle fleet supports OBD-II or one of its regional flavors.
Among other things, OBD-II requires that each compliant vehicle be equipped with a standard diagnostic connector (DLC) and describes a standard way of communicating with the vehicle’s computer, also known as the ECU (Electronic Control Unit). A wealth of information can be obtained by tapping into the OBD bus, including the status of the malfunction indicator light (MIL), diagnostic trouble codes (DTCs), inspection and maintenance (I/M) information, freeze frames, VIN, hundreds of real-time parameters, and more.
STN1110 is an OBD-to-UART interpreter that can be used to convert messages between any of the OBD-II protocols currently in use and UART. It is fully compatible with the de facto industry standard ELM327 command set. Based on a 16-bit processor core, the STN1110 offers more features and improved performance compared to any other ELM327-compatible IC.
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