Mini Base Board (A) for Raspberry Pi CM5

The Waveshare Mini Base Board (A) is an expansion board for the Raspberry Pi Compute Module 5 (CM5) that offers a range of features packed onto a compact carrier, allowing extensive prototyping or general breakout usage of your CM5.

Key features include 2x USB 3.2 Gen1 ports, a full-size HDMI port, a second HDMI port via FFC, Gigabit Ethernet, RTC battery holder and PCI-e interface. MIPI DSI and CSI connectors enable display and camera integration, while the MicroSD card slot provides flexible storage/boot options.

Power is supplied via USB-C (we recommend the Raspberry Pi 27W PSU), with a fan header for cooling and mounting holes for installation.

Compute Module 5 not included.

What’s Onboard?

1. CM5 socket: Suitable for all variants of Compute Module 5
2. 40-pin GPIO header: For connecting various HAT / HAT+ modules
3. Power input/Programming: requires a 5V / 5A USB-C power supply (or used for eMMC burning)
4. PCIe interface: For connecting various PCIe expansion boards
5. PSW Power button: Long press to force power off, short press to soft power off or on
6. STAT LED: Dual-colour status LED
7. BOOT button: Press before powering on and release after powering on to enter the burning mode
8. Dual MIPI interfaces: For connecting DSI displays and CSI cameras
9. HDMI0 connector: HDMI0 port, supports 4K output
10. USB 3.2 Gen1 ports: 2x USB 3.2 Gen1 high-speed ports, supports 5Gbps synchronous operation
11. RJ45 Gigabit Ethernet port: Supports 10M / 100M / 1000M network access
12. 4-Pin JST-SH PWM Fan header: For connecting a cooling fan, 5V power supply
13. TF card slot: For connecting a MicroSD card with pre-burnt image (Lite variant ONLY)
14. IO-VREF selection: CM5 IO logic level: 3.3V (default) or 1.8V
15. Other function pins: WIFI / BT hardware disable or write protection
16. HDMI1 FFC connector: HDMI1 port, supports 4K output, can be connected through an adapter
17. USB 2.0 FFC connector: Can be connected through an adapter
18. RTC battery holder: Supports rechargeable ML1220 button cell

Resources

• Product Wiki
• Dimensions
• Schematic
• 3D Model

Package Contents

• 1x Mini Base Board (A) for CM5
• 4x Standoffs
• 4x Screws

Compute Module 5 not included