#raspberrypicm4

OK, our 10164227-1004A1RLF (https://www.digikey.com/short/3z8mb49f) Compute Module connectors came in, so we're ready to fab this prototype of our Compute Module 4 or 5 backpack. Timon updated it to have an EYESPI connector to bring out some GPIO's and make it easy to connect small displays. There's so much packed on here; we're worried about how we're going to make a test jig for so many connectors! We may need to use an IO multiplexer to address so many pins with a microcontroller - while using a CM5 to do the test sounds 'fun,' it would not be good to have such a delicate board used for testing hundreds or thousands of these in the fabrication department.