Raspberry Pi CM4-to-CM3-Board User Guide

  Overview

Raspberry Pi Compute Module 4 CM4 to CM3 Adapter CM3+ Adapter board converted from cm4

  Resource comparison

The adapter board calls CM4 resources

CM4-to-CM3-BoardCM4
HDMIHDMI0
GPIO0~27GPIO0~27
GPIO28、GPIO29GPIO44(SDA0)、GPIO45(SCL0)
GPIO31、GPIO33CAM_GPIO
GPIO30、GPIO32、GPIO33~45NC
CSI0CSI1
CSI1CSI0
DSI0DSI1
DSI1DSI0
USB2.0USB2.0
SDIOSDIO

  Onboard resources


  • CM4 connector: connect CM4

  • CM4 working status light: used to judge whether CM4 is working

  • MP28164: DC buck-boost chip

  • Power supply selection: the resistor on the left - direct power supply; the resistor on the right - power supply after passing through the DC buck-boost chip (default)

  • IO level selection: select the IO level of CM4 (3.3V is selected by default)

  • CM3 interface: used to connect to the CM3 backplane

Price: $15.89
Part Number: CM4-to-CM3-Board
Brand: Spotpear
SKU: 0101443