The Printalyzer is an F-Stop enlarging timer and print exposure meter.
A good overview of the project can be found in these blog posts:
Videos demonstrating the project are here:
Note: This project is currently a work-in-progress, so expect the hardware and software to be continuously evolving.
The "hardware" directory contains KiCad projects with the complete circuit schematics, bill-of-materials, and PCB layouts.
The "software" directory contains all the source code for the firmware that runs on the hardware.
The "models" directory contains any CAD models and related resources necessary to physically assemble the project.
Individual directories will contain LICENSE files as needed, with relevant details. Generally, the hardware will be CC BY-SA and the software will be BSD 3-Clause. However, external resources may have their own individual license terms.