Automation Hat on CM4 and Compute Module 4 IO Board


I have an application that is using Node Red and the Automation Hat on a Pi4B without any issue.

However, I am trying this on a CM4 board with a Compute Module 4 IO Board. The basic python examples somewhat work, when I activate and deactivate the relays. However, the ADC ports (which I am not using) are randomly flashing, and the WARN light stays on. I can’t properly set the lights either.

Any idea where I should investigate next?

Thanks for your help

Here’s a link to the IO board

My module is a CM4001000 (CM4 Lite no wireless, 1GB RAM)