Waveshare CM4 to CM3 Adapter

Description

This Waveshare CM4 to CM3 Adapter offers a practical alternative for developers facing the ongoing supply constraints of Raspberry Pi Compute Module 3 (CM3) and CM3+ series boards. By providing a bridge between the newer, more powerful CM4 and the legacy CM3 SODIMM interface, this adapter ensures that existing CM3 ecosystem base boards remain compatible with the latest Compute Module technology.

The adapter is engineered with an onboard standard CM4 connector, enabling direct integration of CM4 Lite or eMMC series boards, which feature the Quad-Core Cortex-A72 64-bit processor for enhanced performance. It meticulously routes the necessary signals and power through a standard CM3 SODIMM connector, allowing the upgraded CM4 to seamlessly interact with base boards designed for CM3.

Power management is robust, incorporating a buck-boost DC chip that accommodates both 3.3V and 5V input, ensuring stable operation. Furthermore, integrated indicators like ACT LEDs provide real-time monitoring of the CM4’s operational status, simplifying development and troubleshooting.