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Low-Cost TFT Instrument Cluster with Telematics

Overview

This design fully meets customer requirements for an instrument cluster with telematics. It includes connectivity, tell-tale indicators, Wi-Fi mirroring of a mobile screen, Bluetooth® Low Energy (LE) connection, and brightness control for a TFT and camera image display.

System Benefits:

  • Provides a cost-effective, compact, and simple design for real-world vehicle instrument clusters, delivering graphics and connectivity.
  • Includes sample application software to jumpstart development. The sample firmware, written in Bare Metal C code, eliminates the need for Linux or Android OS expertise.
  • Offers ready-to-use connectivity options on the reference board, including Wi-Fi, Bluetooth LE, Ethernet, GPS, and GSM-4G.
  • Features independent dual-port CAN, enabling connection with other ECUs on the vehicle bus and providing a separate interface for a diagnostic port.
  • Replaces the expensive SerDes camera interface with an HD Link, allowing connection to a low-cost analog camera via a Single Twisted Pair (UTP/STP) connection while maintaining video quality.
  • Supports a smartphone-like user interface using popular tools such as Qt and Candera.

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AS252AS252AS252AS25212V Battery12V Battery12V Battery12V Battery12V Battery12V Battery12V Battery12V BatterySheet.133Double arrow.2150Double arrow.2166Label Text 10pt.2367Label Text 10pt.2368TFT Display (Up to 9")TFT Display (Up to 9")TFT Display(Up to 9")Real-Time ClockReal-Time ClockReal-Time ClockCAN 1CANCANLight SensorLight SensorLight SensorWi-FiWi-FiWi-FiBluetooth Low EnergyBluetooth Low EnergyBluetooth Low EnergyGPSGPSGPSGSM-4GGSM-4GGSM-4GVideo DecoderVideo DecoderVideo DecoderAHL Camera Ref DesignAHL Camera Ref DesignAHL Camera Ref DesignConnector ArrowBuck Controller/LDOBuck Controller/LDOBuck Controller/LDOConnector double arrowConnector double arrow.233Connector double arrow.234Connector double arrow.235Connector double arrow.236Connector double arrow.237Connector double arrow.238Connector double arrow.239Connector double arrow.240Connector Arrow.241Communication Lines B.135Communication Lines B.251Reference BoardReference BoardReference BoardSingle Twisted Pair (UTP/STP)Single Twisted Pair (UTP/STP)Single Twisted Pair (UTP/STP)BT656BT656BT656LVDSLVDSLVDS3.3V/5V3.3V/5V3.3V/5VConnector double arrow.260MCUMCUMCUMCUCAN 2CANCANI2C 1I2CI2CI2C 2I2CI2CVCCVCCVCCUART/SPIUART/SPIUART/SPIUART 1UARTUARTUART 2UARTUARTUART 3UARTUARTVDCEVDCEVDCE

Buck Controller / LDO

Buck Regulators (Integrated FETs)
Linear Regulators (LDO)

MCU

RH850 Automotive MCUs

Real-Time Clock

Application-Specific Clocks

Light Sensor

Ambient Light Sensors

Wi-Fi

Wi-Fi MCUs

Bluetooth Low Energy

Bluetooth Low Energy

Video Decoder

Video Decoders/Encoders

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