Waveshare Compute Module 4 to Raspberry Pi 4B Adapter

This CM4 to Pi 4B Adapter is an alternative solution for the Raspberry Pi 4B, based on the Compute Module 4. It offers a range of features that make it a cost-effective choice for users.

The adapter features an onboard standard CM4 connector, supporting access to CM4 Lite / eMMc series boards with a Quad Core Cortex A72 64-bit processor, providing more powerful performance. This allows users to easily install the CM4 and take advantage of its capabilities.

Furthermore, the adapter is designed to be compatible with the interfaces of the Raspberry Pi 4B board, making it easy to use with existing Pi 4B series HATs or other development projects.

In terms of connectivity, the adapter boasts 4 USB 3.0 ports, which are compatible with USB 2.0 / 1.1 transmission. Additionally, it features an onboard RJ45 Gigabit Ethernet port, supporting 10 / 100 / 1000 M adaptive speeds, and a PoE header for connecting PoE HATs.

The adapter also includes a micro USB port, which can be used for power supply or as a USB SLAVE interface for programming images. It is important to note that when using the micro USB port for image programming, users should not connect to any other devices to ensure the power supply of the CM4.

To ensure proper operation, the CM4 must be provided with a 5V 2A power supply, as lower voltages or frequencies may cause the device to shut down or experience performance issues.

It is worth noting that the USB2.0 interface is closed by default, and users will need to add the "dtoverlay=dwc2,dr_mode=host" line in the "config.txt" file to use it.

The adapter's FAN only supports 5V and does not have a controller, so the fan speed cannot be adjusted. Users should confirm the fan voltage before connecting it.

It is important to avoid plugging and unplugging any devices when the adapter is powered on to prevent potential issues.

The development resources and user manual for this adapter can be found at //bit.ly/3fpUYgT.

In summary, the CM4 to Pi 4B Adapter offers a cost-effective solution for users who want to take advantage of the Compute Module 4's capabilities while maintaining compatibility with the Raspberry Pi 4B ecosystem. Its range of features and connectivity options make it a versatile choice for various development projects.

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