Reading Litter Robot III LED status with Raspberry Pi Zero W

Hey all

We’ve moved to a new house and our Litter Robot is in a back room where we don’t walk by it often. I know there’s a $100 kit to add remote monitoring for it, but I’ve been playing with Raspberry Pis and Home Assistant home automation and thought that I could try to interface the two. All I want to do is use a Raspberry Pi Zero W’s gpio to read the status of the LEDs. I will then work on getting that into my Home Assistant.

What I’m really looking for is to see if anyone has a wiring diagram for the Litter Robot? I can pull it apart and trace things, but thought I’d start off easy and see if a wiring diagram exists for this.

Also, has anyone else done anything like this? I’m now off to the Home Assistant forums and discord to ask around there a bit.

Thanks
Tim

Hey,

This is a really great project! Unfortunately, the supplier does not give that information, since it is not open source.