I have these on all of my blinds and they are amazing. You can sometimes get them on sale for $50-60 each. They come with a solar panel that keeps them charged.

I have these on all of my blinds and they are amazing. You can sometimes get them on sale for $50-60 each. They come with a solar panel that keeps them charged. You can add a hub that makes them work with HomeKit. https://us.switch-bot.com/products/switchbot-blind-tilt https://us.switch-bot.com/products/switchbot-blind-tilt