Filament Usage Tracking Device - Version 1

Update - Aug 25 After some thought and finding a new chip (AS5600) I have changed my approach. Instead of trying to obtain the amount of filament used via my own mechanism, I am instead using the extruder wheel. This reduces the complexity and also reduces friction. I am still in the early stages with hardware now complete and I am now working on the software. Link Here Background The current problem with the bambu printers is that there is no easy way to track filament usage. Current solutions include making logs using the amount the slicer estimates or weighing the spool. Both methods have their downsides either in accuracy, availability of information, or the amount of effort required to track and log. If you have an AMS, the filament tracker functionality is lost if you use 3rd party spools. This solution looks to address these by creating an automatic solution that will track filament usage real-time providing accurate up-to-date information on the amount of filament left on each