This week I continued progress on my final project of building a pinball machine by creating the first of several seven segment displays that will showcase players high scores. I planned to build a board off of an AT Tiny 44 in a similar way to my past boards. For this, I am using seven pins, pins PA0 - PA7 to connect to my LEDs, FTDI header and 2x3 pin to program my board. This doesn't seem to be the final incarnation of this board because I will need to have several of there boards and they may operate best connected to a voltage regualtor. In addtion, this board would have a 3D printed overlay with transparent PLA to allow one LED to light an entire segment as traditionally understood. The schematic of my current board can be found below:

From there, I created the above traces for my board and built the board. I initially had some difficulties setting my traces because the size of my board was about the size of single copper plate to mill into. You can see the difficulty I had on the board in the top left when the origin sat to high to actually include all my pieces. Similarly, my bottom connection isn't fully on the board below because the origin wasn't set correctly. As a conseuquence, I had to create jumper cable as seen in the video in the top of the page. The final product of my milled board can be found below.

At this point, I soldered all of my components onto my board, worked with Rob to debug some shorts within my circuit. Once we resolved those issues, I coded my board to just show that is can display every number as needed. Later, I will have this board be sent what number that should be displayed and store all these numbers as functions to be called based on the input. However, given that there are no current inputs to my output board, I just had it run as a number display.

The code for the seven segment display can be found here.
The files for this week can be found here:
here.