Yes, the one I bought was this (I think you can find cheaper sellers as well): https://nl.aliexpress.com/item/1005006140751675.htmlThe code is here (though it is a bit messy): https://github.com/rosmo/CircleMonitor
Yes, the one I bought was this (I think you can find cheaper sellers as well): https://nl.aliexpress.com/item/1005006140751675.html
The code is here (though it is a bit messy): https://github.com/rosmo/CircleMonitor