More Simple Arduino Goodness
After a little more fiddling on Friday night, I had a bunch of LEDs connected to one of the 595 shift registers following one of the Oomlout example circuits.
I added a second shift register chained off the second to run another 8 LEDs, again following an example circuit, but this time from the Earthshine Arduino Guide.
This naturally meant cool lighting effects.
Then I had a go at driving the LEDs at different duty cycles to vary their brightness. This is something I'll need to do with the 8x8 displays, so it seemed like a sensible plan to have a go with a simple circuit. It turns out it's not that hard to do:
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