For this week’s homework assignment, we made a marquee letter light up.
Here are original files:
First, we started making the PCB Eagle file in class. After each of us were assigned a letter to do, we set out on making our own PCB boards.
Using Illustrator, I created a template for the ‘K’, and imported the vector shape into Eagle, and placed components on the board. Then, the components were wired as efficiently as they could.
There are two airwires that are represented in blue.
After milling the board via Bantam Mill (stabbed my finger badly on the engraving bit by mistake and thus forgot to take pics of this process… ugh) I used solder paste to put the components on.
Then, I programmed the ATTiny using the Arudino as ISP. What took forever is trying to figure out the pin for the LEDs (later figured out that the pins for programming are numbered differently from the pins on the package itself!)
Had such an annoying time debugging the code!
BUT, at the end, it worked! And the washer is the capacitor :-)
Finished K marquee!
For next time, I need to try to stencil the solder paste — I completely failed on making that stencil!