There are a couple of ways to attach an encoder to the mount to track actuator position.
## HIngesHinges
https://gatehardwarecenter.com/store/d-d-shut-it-bolt-on-baby-badass-hinge-ci3750.html?gclid=CjwKCAjwgZuDBhBTEiwAXNofRIb2o4CEUGVr_-UUNzYSLvvhYg-rvnCTHGrK9NKjKWzOGlotoMQ9GRoCb3gQAvD_BwE
## Rotary Encoders
### Single Turn Absolute
https://www.mouser.com/ProductDetail/Bourns/AMS22B5A1BHASL334N?qs=kt0%2FcWl7YWfoez7BV%252BGENA%3D%3D&mgh=1&gclid=CjwKCAjw6qqDBhB-EiwACBs6xzts0adWZ6byjvQkTijiDdVFMMXgs5_Tj4s-2xY4Qmdl2MXhLuwLaxoC9RAQAvD_BwE
https://www.mouser.com/ProductDetail/Bourns/AMS22U5A1BHBRL334?qs=Zq5ylnUbLm5JcZY%2FrTiIlQ%3D%3D
## Sun angle calculation