Mini Base Board for Raspberry Pi Compute Module 4

Mini Base Board (B) designed for Raspberry Pi Compute Module 4 Mini Base Board for Compute Module 4. Suitable for evaluating the Raspberry Pi CM4 or being integrated into end products Powerful functions in a credit card sized body

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CM4 socket	suitable for all variants of Compute Module 4
Networking	Gigabit Ethernet RJ45 connector
	M.2 M KEY, supports communication modules or NVME SSD
Connector	Raspberry Pi 40PIN GPIO header
USB	USB 2.0 Type A × 2, USB 2.0 via FFC connector × 2
Display	MIPI DSI display port (15pin 1.0mm FPC connector)
Camera	MIPI CSI-2 camera port × 2 (15pin 1.0mm FPC connector)
Video	HDMI port × 2 (including one port via FFC connector), 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
Power input	5V
Dimensions	85 × 56mm

What’s On Board

1. CM4 socket	2. Power input/Programming
3. DISP	4. FAN
5. CAM	6. HDMI0 connector
7. USB 2.0 ports	8. Gigabit Ethernet connector
9. M.2 indicator	10. ACT indicator
11. PWR indicator	12. BOOT selection
13. 40PIN GPIO header	14. Micro SD card slot
15. HDMI1 FFC connector	16. USB 2.0 FFC connector
17. FE1.1S	18. M.2 slot
19. RTC chip	20. RTC interrupt selection
21. EMC2301	22. RTC battery holder

Application example

For reference only, CM4, displays, cameras, and SSD are NOT included.

Resources

• Wiki
• Schematic
• Raspberry Pi Compute Module 4 IO Board Brief
• Raspberry Pi Compute Module 4 IO Board Datasheet
• CSI Camera Reference
• DSI Display Reference