10/2 - 10/5

This week I continued to work on my new PCB, first of getting the Multiplexer to work because the wires connecting SDA to A4 and SCL to A5 were switched causing the multiplexer not to work and send an error message when trying to turn it on. After I fixed that, I started to solder the three pin and two pin headers on, one by one. After soldering each pair of three and two pin headers on, I tested them to make sure that the breakbeam sensors would work with the pins. I ran into a few problems during this however, the first of which being that I needed to cross a wire over a three pin header, which wasn't possible, so instead, I put it on the bottom of the board. This caused the next problem I had, which was that I had to make sure not to burn through the rubber outside of the wire while soldering. This caused me to accidentally not put enough solder on the pins, making them not work. I fixed this by using a multimeter to test continuity and adding more solder to the pins that weren't connected. In the end I got most of the pins soldered onto the board, and I'll finish doing it next week.