There are a few things I want to improve on the VMFB, but don't really have the time to knock out right now. The current design works well enough and has worked reliably for a few months with minimal supervision. 

I'm trying to get to Stage 5 before May. Then I will be more motovated to do the following:

1. port the software to a lower-power solution 
2. make the dispense pathway impossible to jam
3. move the PIR sensor to the camera arm
4. make deposit sensor placement easier
5. make the deposit pathway shorter