Rpi relay control


Hi all! I’m struggling with controlling a 8 really panel. It seems to work backwards from what I’d expect…when the GPIO is “low” it turns relay on? I would have thought “high” would turn it on? Is there a method to get it to work this way?


You must select “Invert Logic”.


Well…that was simple enough!

Thank you!


Just some more info for you, it depends on the type of relay you get. Some are active low and some are active high. From what you said you have an active low relay which can definitely get confusing. It should say in the specs what kind of relay it is.