I create a control unit for chaser animations with two circuit boards—one for logic and one for high-voltage control. The ...

The next step is to reverse engineer the circuit board itself by taking high-resolution images, sometimes removing parts from the board to do so, and a schematic with every part you noted from the ...

as well as a circuit board with a multitude of shift registers. The result has a surprisingly good resolution, capable of making clearly distinguishable the heel, arch and front part of a foot.