Compute Module 4 Industrial IoT Base Board

WaveshareSKU: WAV-20535
Sale price £100.40
incl. VAT
excl. VAT
Only 3 units left

The  Compute Module 4 PoE 4G Board is an industrial-grade IoT base board designed for Raspberry Pi Compute Module 4 (not included). It features slots for communication modules such as global 5G/4G/3G/2G cellular network modules, and PoE. This board also features various industrial isolated interfaces such as CAN, RS485, RS232, ADC, and the standard Raspberry Pi GPIO, which make it an ideal choice for sorts of industrial IoT applications. 

Online development resources are available, which include wiring guidance and example code, with additional information being found on the Product Wiki & Manual.


  • Compatible with Raspberry Pi Compute module 4 all variants
  • M.2 slot for connecting separate communication modules - global 5G/4G/3G/2G cellular network support (not included)
  • 10/100M/1000M auto-negotiation Ethernet port with PoE enabled
  • USB HUB allows connecting more USB devices
  • USB TO UART, for serial debugging
  • Provides various industrial isolated interfaces: CAN, RS485, RS232, ADC, GPIO, RTC
  • Multiple video-related ports like HDMI, DSI, CSI
  • LED indicators for monitoring operating status


  • CM4 Socket: Suitable for all variants of Compute Module 4
  • Networking: Gigabit Ethernet RJ45 connector, integrates 802.3af-compliant PoE circuit (5V/2.5A)
  • M.2 B Key: Supports 5G / 4G module
  • SIM Card Slot: Supports standard SIM card for 5G/4G/3G/2G communication
  • Connector: Isolated RS485, Isolated RS232, PCIe Gen 2 x1, I2C, ADC, GPIO
  • USB Dual USB: 2.0 Type A
  • Display: Dual MIPI DSI display ports (15pin 1.0mm FPC connector)
  • Camera: Dual MIPI CSI-2 camera ports (15pin 1.0mm FPC connector)
  • Video: Dual HDMI ports, supports 4K 30fps output
  • RTC: Real-time clock with battery socket and ability to wake Compute Module 4
  • Storage: MicroSD card socket for Compute Module 4 Lite (without eMMC) variants
  • Fan Header: Allows speed adjustment and measurement, 5V / 12V input
  • Power Input: 7V~36V 
  • Dimensions: 160 x 114mm

    Whats On Board

    1. Compute Module 4 socket
      • For connecting Raspberry Pi Compute Module 4
    2. Power input
      • 7-36V
    3. CM4 status indicator
      • Red: Raspberry Pi power indicator
      • Green: Raspberry Pi operating status indicator
    4. M.2 status indicator
      • Red: enabled indicator
      • Green: operating status indicator
    5. User LED
      • Handy for I/O output testing, or program status monitoring
    6. USB TO UART
      • For serial debugging
    7. HDMI
      • Dual HDMI ports, supports dual 4K 30fps output
    8. USB 2.0
      • Ddual USB 2.0 ports
    9. RJ45 Gigabit Ethernet
      • 10/100/1000M auto-negotiation Gigabit Ethernet port with PoE Power Over Ethernet features
    10. M.2 slot
      • For connecting 5G/4G communication module
    11. SIM card slot
      • Supports standard SIM card for 4G/3G/2G communication
    12. RTC real time clock battery holder
      • Uses CR1220 button cell
    13. PCIe Gen 2 × 1 socket
    14. Fan header
      • For connecting cooling fan, allows speed adjustment and measurement
    15. Buzzer
    16. DISP
      • Dual MIPI DSI display ports
    17. CAM
      • Dual MIPI CSI camera ports
    18. Isolated GPIO
      • Allows controlling / detecting devices via GPIO
    19. Isolated I2C
      • Allows controlling / reading devices via I2C
    20. Isolated ADC
      • ADC differential input
    21. Isolated CAN interface
    22. Isolated RS485 interface
    23. Isolated RS232 interface

    1. Micro SD card slot (bottom side)
      • Insert a Micro SD card with pre-burnt system, to start up Compute Module 4 Lite
    2. USB-C programming port (bottom side)
      • Allows burning system image into Compute Module 4 eMMC variants


    Package Contents

    • 1x Compute Module 4 PoE 4G Board

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