Mini Base Board (B) for CM5

Break out your Raspberry Pi Compute Module 5’s vital interfaces and more, including a PCIe M.2 M.2 M-Key slot, with this Mini Compute Module 5 carrier/breakout from Waveshare.

This breakout board is designed for Raspberry Pi Compute Module 5, breaking commonly used interfaces to allow you to use your CM5 for development, projects, or even as a desktop PC.

All the essentials are available – a full-size HDMI port (and another available via FFC), Gigabit Ethernet, two USB 3.0 ports (and USB 2.0 available via FFC), USB-C input for power and programming, and a MicroSD slot.

In addition, the board also features dual MIPI CSI/DSI interfaces, PCIe M.2 NVMe slot (M-Key) for 2230 or 2242 M.2 devices such as SSDs, RTC battery holder, 4-pin fan header, Power/BOOT buttons and a dual-colour indication LED.

To top it off, advanced users will appreciate the onboard CAT24C32 EEPROM and ATSHA204 encryption chip, both connected via I2C.

With all the above features sitting on a familiar Raspberry Pi-esque footprint, this board is going to be an excellent companion for the majority of CM5 projects.

CM5 and accessories not included.

Features

• Designed for Raspberry Pi Compute Module 5
• PCIe M.2 M-Key slot for 2230/2242 NVMe devices
• Full-size HDMI port (second available via FFC)
• Gigabit Ethernet port
• Two USB 3.0 ports
• USB 2.0 via FFC connector
• USB-C for power and programming
• MicroSD card slot
• Dual MIPI CSI and DSI interfaces
• RTC battery holder
• 4-pin fan header
• Power and BOOT buttons
• Dual-colour status LED
• Onboard CAT24C32 EEPROM (I2C)
• Onboard ATSHA204 encryption chip (I2C)
• Compact Pi-style board footprint

What’s Onboard?

1. CM5 socket
   • Supports all Compute Module 5 variants
2. 40-pin GPIO header
   • For HAT / HAT+ modules
3. Power input / Programming
   • 5V / 5A input or eMMC burning
4. Encryption chip (ATSHA204)
   • Secure symmetric authentication
5. PSW power button
   • Hold to power off; short-press for soft off or on
6. STAT LED
   • Dual-colour status LED
7. BOOT button
   • Hold during power-up to enter bootloader mode
8. Dual MIPI interfaces
   • DSI and CSI display/camera connections
9. HDMI0 connector
   • HDMI port with 4K output
10. USB 3.2 Gen1 ports
    • 2x USB 3.2 Gen1, 5Gbps speed
11. RJ45 Gigabit Ethernet
    • Supports 10M / 100M / 1000M
12. 4-pin JST-SH fan header
    • Cooling fan, 5V power supply
13. TF card slot
    • Pre-burnt image support (Lite variant only)
14. IO-VREF selection
    • CM5 IO level: 3.3V (default) or 1.8V
15. Other function pins
    • Wi-Fi / BT disable or write protection
16. HDMI1 FFC connector
    • 4K output, connect via adapter
17. USB 2.0 FFC connector
    • Connect via adapter
18. RTC battery holder
    • Supports CR / ML1220 cells
19. M.2 M KEY
    • Supports 2230/2242 NVMe SSDs
20. I2C selection
    • Switches I2C0 / I2C1 for encryption and EEPROM
21. CAT24C32
    • EEPROM chip

Specifications

Resources

• Product Wiki

Package Contents

• 1x Mini Base Board (B) for CM5
• 1x Fixings/standoff pack
• 1x SSD mounting screw

CM5 and accessories not included.