Mini Base Board (C) for Raspberry Pi Compute Module 4

This Mini Base Board (C) for the Raspberry Pi Compute Module 4 is a compact CM4 breakout option offering a good set of features with a small footprint. With its dedicated 40-pin LCD connector to easily connect to a display/touch device, M.2 slot for high-performance storage, 4K HDMI, Real-time clock, dual-CSI ports to connect your cameras, and a host of other features, it's a great base for any CM4 project that you're planning. Including this board, there are 3 boards available! Below is a table to show the difference between the 3.

CM4 Base Board GIGABIT ETH 40-Pin GPIO PCIE USB 2.0 DSI HDMI CSI RTC FAN HEADER POWER INPUT FEATURES

MINI BASE A 1x Y M.2 M 4x 1x 2x ×2 N 5V 5V Mini size

MINI BASE B 1x Y M.2 M 4x 1x 2x ×2 Y 5V 5V Mini size

MINI BASE C 1x Y M.2 M 2x N/A 1x ×2 Y 5V 5V Dedicated 40PIN LCD Connector

You can find the A board here and the B board here Note: Compute Module, M.2 SSD and RTC battery not included Features

* 40-Pin GPIO Header

* 1x RJ45 Gigabit Ethernet Port

* 2x USB 2.0 Ports

* 1x Full-size HDMI Port

* 1x M.2 M Key Port (supports NVME Solid State Drives, or communication modules with a PCIE M.2 KEY-M interface)

* 1x Micro-SD Card Slot

* 1x RTC (Real Time Clock) (Battery Not Included)

* 2x CSI Camera Ports

* 1x LCD Display Port (for 70H-1024600 series display)

* 1x USB-C Programming/Power Port

What's on Board

1. CM4 socket Suitable for all variants of Compute Module 4 2. Power input/Programming 5V/2.5A power supply, or used for eMMC burning 3. LCD Port 40-PIN LCD display port, for direct connection to 70H-1024600 series display 4. FAN For connecting the cooling fan, allows speed adjustment via IO ports 5.CAM 2x MIPI CSI camera ports 6. HDMI0 connector HDMI0 Port supports 4K 30fps output 7. USB 2.0 ports 2x USB 2.0 ports, for connecting sorts of USB devices 8. Gigabit Ethernet connector Gigabit Ethernet RJ45 connector, with 10 / 100 / 1000M network support 9. M.2 indicator Indicating the operating status of M.2 interface 10. Raspberry Pi indicators Green LED: PWR, indicating the status of Raspberry Pi power supply Red LED: ACT, indicating the operating status of Raspberry Pi 11. Boot switch ON: CM4 would be booted from the USB-C interface OFF: CM4 would be booted from eMMC or TF card 12. 40PIN GPIO header For connecting sorts of HAT 13. TF card slot For connecting a TF card with a pre-burnt image (Lite variant ONLY) 14. FE1.1S USB HUB chip, support expanding USB port 15. M.2 slot Supports sorts of NVME Solid State Drives, or communication modules with PCIE M.2 KEY-M interface 16. RTC chip Allows RTC-related functions like wakeup, shutdown, reboot, and more 17. RTC interrupt selection GN-EN: CM4 shutdown(by default) on RTC interruption PI-RUN: CM4 reboot on RTC interruption D4: D4 pin is triggered on RTC interruption 18. RTC battery holder Supports CR1220 button cell Specifications

CM4 Socket Suitable for all variants of Compute Module 4

Networking Gigabit Ethernet RJ45 connector

Connector M.2 M KEY, supports communication modules or NVME Solid State Drives

Raspberry Pi 40PIN GPIO header

USB USB 2.0 Type A × 2

Display LCD port (40pin 0.5mm FPC connector) for 70H-1024600 series display

Camera MIPI CSI-2 camera port × 2 (15pin 1.0mm FPC connector)

Video HDMI port, supports 4K 30fps output

RTC Real-time clock with battery socket and ability to wake Compute Module 4

Storage TF card socket for Compute Module 4 Lite (without eMMC) variants

Fan Header Allows speed adjustment, 5V

Power Input 5V

Dimensions 85 x 56mm

Resources

* Product Wiki

* CM4 datasheet

Package Contents

* 1x Mini Base Board (C)

* 1x Solid State Drives mounting screw