OBD Development Board

As shipped, the OBD Development Board is a fully functioning OBD-II to USB interface that supports all OBD-II protocols and works with any ELM327-compatible software.

The OBD Development Board features UART and USB interfaces, an OBD breakout with access to all all 16 J1962 (OBD port) pins, three module slots with breakout headers, and a number of configuration jumpers and test points. Full details are available in the ‘Schematics’ section below.

The unique modular design offers considerable flexibility, allowing engineers to quickly evaluate, prototype, and verify the major circuit blocks.

Features

Modular design
- Interconnect Board
- STN Breakout Module
- OBD Driver Module
- Power Module
Support for all legislated OBD-II protocols:
- SAE J1850 PWM
- SAE J1850 VPW
- ISO 9141-2
- ISO 14230-4 (KWP2000)
- ISO 15765-4 (CAN 250/500 kbps, 11/29 bit)
Support for non-legislated OBD protocols:
- ISO 11898 (raw CAN)
- SAE J1939 (cable not supplied – does not support 24 Volts)
- Single Wire CAN (SW-CAN) – GM proprietary network
- Medium Speed CAN (MS-CAN) – Ford proprietary network
ELM327-compatible command set
Breakout headers for all module pins
UART and USB interfaces (FT232RL/Virtual COM Port)
16-pin OBD breakout header
Test points for measuring voltage
Tap points for measuring current
Configurable sleep/wakeup functionality
Can be powered from OBD Port (12 Volts), or the optional 12VDC power supply