Hi there! I have a salvage/reuse warehouse around the corner from ATXHS on Brown Lane. Among many projects, I’m working on ways to save jigsaw puzzles from the landfill. There is some expensive technology that can count or will soon be able to count puzzle pieces but I’m hoping to find an interim solution, something that is cheap, albeit far more time consuming. One thought I’ve had is to use Arduino to build a simple motion sensor. Then someone just has to make sure each time they cross the sensor they have say, 2 pieces - over and back being an accurate count. I know nothing about Arduino so hoping someone in your space might be able to help and or advise.
PS - for puzzle enthusiasts, I am aware that most puzzles don’t contain the exact number of pieces given on the box. I’ve figured out how to know the exact count so down to making sure I can count accurately!