MAS:863 HOW TO MAKE (ALMOST) ANYTHING 2018
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WEEK 9: Input devices
Individual assignment: measure something: add a sensor to a microcontroller board that you have designed and read it
For this weeks assisgnment I selected to create a light, phototransistor sensor. I redrew the hello.light.45.cad board in Eagle. When I went to mill the outline, Mods could not detect it. It turns out Eagle didn't ouput enough room in the border for Mods. Also remember to fill in the board in Eagle.
The other issue I came across was the export size for the Retina screens. People told me different things and it ended up being too large. The notes I took about this issue in Week 5 was actually correct. Output at 1000dpi and half the physical size of the board but keep the dpi at 1000. The other issue was the unevenness of the mill trace due the board being improperly taped to the sacrificial layer.
I milled the board but noticed that there was thin strings of copper in a lot of parts of the board and in some parts the copper was not cleared completely off.
I cut off the strings of cooper and sodered the components to the board. I had to alter the outline size after I already outputed the file from Eagle. This led to the FTDI header hovering off of the board.
I tried to program the board with Neil's code but could not get it to work.
