CM4 to CM3 Adapter
Contents
Overview
Since the Raspberry Pi Compute Module 3 (CM3) module is in short supply, the CM4 to CM3 adapter is designed to convert CM4 module to CM3 interface.
This adapter board converts the latest Raspberry Pi Compute Module 4 (CM4) to CM3 interface, allowing CM4 to adapt to the old CM3+/CM3/CM3L series baseboard. Also Support to use CM4 with Geekworm 12mm aluminum alloy heatsink C235.
When install the CM4 module into CM4 to CM3 adapter board, please pay attention to the CM4 install directions.
Note:
- Make sure that the CM4 module is installed on the expansion board correctly before power on.
- Please pay attention to the CM4 install directions.
- The Raspberry Pi Compute Module 4 or heatsink is not included in the packing list.
Features
- Raspberry Pi Compute Module 4 interface
- 1 x CM3 interface
- 1 x Boot led(System status led indicator)
- 1 x Reboot Button
- Operating temperature: 0℃~80℃
- Dimensions: 67.6x46.5mm/2.66x1.83inch
Packing List
1x CM4 to CM3 Adapter
User Manual
The VBAT voltage range of CM3 is 2.5-5V. The VBAT voltage of most CM3 IO boards is 3.3V or 5V, but the VBA voltage of CM4 is only 5V. When the VBAT of the CM3 IO board used is 3.3V, a DC circuit is needed; but if the VBAT of the CM3 IO board is 5V, the DC voltage will produce howling because it does not need to be boosted; But this issue has been solved in the current production batch.
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