I just discovered this and it works fantastically on any old / unused android device you might have lying around, I was shocked at how easy it was, all the instructions are there, once you have it running all you need to do is set your router DNS settings to your pihole IP address and presto! Ads and trackers are gone!
Can I ask what kind of setup you have there? In terms of software etc…
It’s just a screen that shows me the weather forecast tbh. It’s a paid app called whatweatherpro