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I have successfully connected 18 button switches(16 to digital and two to analog ins) and 16 leds to the dedicated led pins of the brain Jr.
Everything works well and i'm very pleased so far !
But i can't figure out if it's possible to connect two more leds to the brain Jr withe the "led matrix" thing to also have led indicators for switches 17 and 18 ?
I read the wiki a few times but i really don't understand the led matrix stuff.
I would be grateful if someone can walk me through the process of figuring out how to connect leds 17 and 18.
I'm not using RGB leds.