This is a kit includes, OBDII - UART converter module and DB9 converter cable neededfor connection. You can read sensor data, detect fault codes and acces various information from your vehicle via OBD port.

You may see the Wikipedia page for detailed information about OBD system.

This board supports common used communication protocols like CAN-BUS and JBUS with its ELM327 supported STN1110 chip. You can find UART communication pins on the board to connect Bluetooth or FTDI modules. OBD - DB9 connection cable is in the kit. However, you will need a FTDI cable or any other USB - UART converter to use on PC.

Techinal Features:

• Fully compatible with ELM327 AT command set
• Supports extended ST command set
• UART connection interface (38 bps - 10 Mbps baudrate
• Safe bootloarder for firmware updating possibility
• Supports all legal registered OBD II protocols
• ISO 15765-4 (CAN)
• ISO 14230-4 (Keyword Protocol 2000)
• ISO 9141-2 (Asian and Europian manufactored vehicles and Chrysler)
• SAE J1850 VPW (GM vehicles)
• SAE J1850 PWM (Ford vehicles)
• Not registered protocol support:
• ISO 15765
• ISO 11898 (raw CAN)
• Supports SAW J1939 OBD protocol used in long vehicles
• Advanced automatic protocol detecting feature
• Large cache memory
• Voltage input for accumulator charging

• OBD-II UART modul
• OBD-II DB9 converter cable
  

• Circuit Schema
• EAGLE Files
• Starting Guide
• STN1110 datasheet
• MCP2551 datasheet
• ELM327 command set
• List of compatible softwares
• GitHub page
• Product Video