Are you sure the hat is well connected?
Be sure both columns of pins are connected, sometimes happened to me I had connected just one of them.
Raspberry model?
openplotter v1.0.0?
Do you see any led on in the hat?
Instruccions: https://docs.sailoog.com/openplotter-v1-...essier-hat
Be sure both columns of pins are connected, sometimes happened to me I had connected just one of them.
Raspberry model?
openplotter v1.0.0?
Do you see any led on in the hat?
Instruccions: https://docs.sailoog.com/openplotter-v1-...essier-hat