Turns out the LoL Shield was charlieplexed, which is rather unsuitable for my needs and I really don't wanna spend the extra processing on the debugging tools. I have therefor decided to insert two 8x8 dual-color LED-modules instead, which is even better actually as they work exactly the same as the light-matrix I'm building - simply extend the wires a bit.
I've also figured out it would be nice with a simple and quick push-to-test button. The plan is to step through all lights, column by column when pressed and held down. This allows quick and easy troubleshooting of broken bulbs or chains without having to interface with the menus, and I could do this with the playfield up as well.
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| 1) Revision B. Tactile button and multicolor LED's for troubleshooting added. The LED's for each lamp will be static but the flashers/higher voltage things will be using red and the lower voltage green. There's also empty pins to ensure the cables are inserted correctly, however I believe nothing happens if plugged the wrong way - except that it won't work. |
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