CM4 to CM3 Adapter
This adapter board converts a Raspberry Pi Compute Module 4 (CM4) to the Raspberry Pi Compute Module 3 SODIMM format, allowing you to maintain projects, designs and products that use the older CM3 format by utilising newer generation Compute Modules.
The adapter board uses a standard CM4 connector and includes an onboard CM4 ACT status indicator, buck-boost chip to support 3.3V/V power input, power supply selection pads and IO level selection pads.
Adapt them all!
We have a few other options in the store if you’re into this CM4 adapting life:
- CM4 to 3B adapter
- CM4 to 4B adapter
Features
- Onboard standard CM4 connector, support access to CM4 Lite / eMMc series boards
- Onboard standard CM3 SODIMM, easily connected to the original CM3 ecosystem baseboard
- Onboard buck-boost DC chip – supports 3.3V/5V power input
- Onboard ACT LED, can monitor the working status of CM4 in real-time
- Overall dimensions: 67.6mm x 46mm
Package Contents
- 1x CM4-to-CM3 Board
Compute Module not included
Resources
- Product Documentation
Onboard Resource Comparison
| CM4-to-CM3-Board | CM4 |
| HDMI | HDMI0 |
| GPIO0~27 | GPIO0~27 |
| GPIO28, GPIO29 | GPIO44(SDA0), GPIO45 (SCL0) |
| GPIO31, GPIO33 | CAM_GPIO |
| GPIO30, GPIO32, GPIO33~45 | NC |
| CSI0 | CSI1 |
| CSI1 | CSI0 |
| DSI0 | DSI1 |
| DSI1 | DSI0 |
| USB2.0 | USB2.0 |
| SDIO | SDIO |
