The OBDII Click Board™ offers a unique opportunity to tap inside the car diagnostic systems. It features the STN1110 Multiprotocol OBD to UART Interface, developed by the ScanTool technologies. This Click Board™ can be used for the communication with the Electronic Control Unit (ECU) of a vehicle, via several different OBD II diagnostic protocols such as CAN, K LINE, L LINE and J1850. The STN1110 IC is used to process requests sent by the MCU via the UART interface and return back the responses from the ECU network nodes.