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Raspberry Pi Compute Module 4 I/O Board

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The Raspberry Pi Compute Module 4 I/O board is the perfect compliment to get you started working the Compute Module 4 line. The Compute Module plugs right into the I/O Board and provides a multitude of inputs and outputs for prototyping or evaluation needs.

The board includes 5v and 12v power connectors and 2 USB 2.0 connectors along with headers for two additional connectors. 2 HDMI full sized HDMI connectors and 2 MIPI DSI display FPC connectors provide support for displays along with 2 MIPI CSI-2 camera FPC connectors. It features the standard 40 pin Raspberry Pi HAT I/O connector as well. On board real time clock with back-up battery provides the ability to wake up the Compute Module 4. An RJ45 Ethernet jack provides access to the Compute Module’s gigabit Ethernet and the board also includes a PCIe GEN 2 socket. Various jumper headers offer the ability to hardware disable/enable features and another header provides support for fans.

  • I/O board only
  • This unit does NOT include a Compute Module 4
  • External power connector (+12V, +5V)
  • 2 x full-size HDMI 2.0 connectors
  • 2 x USB 2.0 connectors, with header for two additional connectors
  • Gigabit Ethernet RJ45 with PoE support
  • Micro USB socket for updating Compute Module 4
  • MicroSD card socket for Compute Module 4 Lite (without eMMC) variants
  • PCIe Gen 2 x1 socket
  • Standard fan connector
  • 2 x MIPI DSI display FPC connectors (22-pin 0.5 mm pitch cable)
  • 2 x MIPI CSI-2 camera FPC connectors (22-pin 0.5 mm pitch cable)
  • Standard Raspberry Pi HAT connectors
  • Real-time clock with battery socket and ability to wake Compute Module 4
  • Various jumpers to disable specific features, e.g. wireless connectivity, EEPROM writing

Raspberry Pi Compute Module 4 I/O Board Product Help and Resources

Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

3 Programming

Skill Level: Competent - The toolchain for programming is a bit more complex and will examples may not be explicitly provided for you. You will be required to have a fundamental knowledge of programming and be required to provide your own code. You may need to modify existing libraries or code to work with your specific hardware. Sensor and hardware interfaces will be SPI or I2C.
See all skill levels


Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

2 Electrical Prototyping

Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
See all skill levels


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