The Nano Base Board A from Waveshare is a simple, affordable way to evaluate the Raspberry Pi Compute Module 4, breaking out key functionality whilst maintaining a compact and low-profile footprint - the same size as the CM4 itself!

This board allows you to power your CM4 via USB-C whilst also providing a USB port, CSI camera connector, SD card slot, GPIO breakout, boot switch and indication LEDs. 

We also stock the Nano Base Board (B) which offers more functionality (but costs a little more).

Note: the GPIO header is packed with the board separately and will require soldering!

Features

The Base Board A is the same overall size as the CM4 module yet offers a host of useful features:

• 40-pin GPIO breakout
• Male colour-coded GPIO pins (packaged separately - requires soldering)
• USB-C 5V power port
• CSI port for Raspberry Pi Camera Modules
• MicroSD card socket for CM4 Lite variants
• 1x USB 2.0 port
• Boot switch
• Power indication LED
• Activity Indication LED
• Dimensions: 55mm x 40mm

What's Onboard?

1) CM4 socket
 - Suitable for all variants of Compute Module 4
2) Power supply / Programming
 - 5V power supply, or used for eMMC burning
3) Micro SD card slot
 - For connecting a Micro SD card with pre-burnt image (Lite variant ONLY)
4) CSI interface
 - 1 × MIPI CSI camera interface
5) USB2.0 interface
 - For connecting sorts of USB devices
6) 40-pin GPIO interface
 - Suitable for connecting to various HAT modules
7) PWR indicator
 - CM4 power status
8) ACT indicator
 - CM4 working status
9) AMS1117-3.3
10) BOOT switch
 - ON: Switch USB to Type C interface, will enter download mode when powered on (configured as a large-capacity disk through RPI boot)
 - OFF: Switch USB to Type A interface, will not enter download mode when powered on (booted from eMMC or Micro SD card)

Package Contents

• 1x Nano Base Board (A) for CM4
• 1x 40-pin colour-coded GPIO header

Compute Module 4 not included

Resources

• Product Wiki