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This will be a short post, I promise. The Lights Out! game requires parts of the circuit to be taken to ground to light up LEDs. This is a common configuration and a transistor in combination with a resistor or two and your Microcontroller’s I/O pin is enough to make a digital switch.
Honestly, I’m no electrical engineer and I have no formal training in this area, so I haven’t gotten mine to work quite right yet. I can get the PIC (my favored microcontroller) to turn on said LED, but I haven’t achieved blinking on the Matrix yet. Which, as you all know, is the proof of mastering a system. You have to make that LED blink.
These are the links I’m learning from. When I get my resistor values correct and the LED blinking I’ll post my diagram and code. Until then, read up for your own edification:
code circuits and construction’s explanation focusing on high current circuits
Mike Martel’s General Explanation – Not Microcontroller Oriented.
My friend Rob also tried to explain it, but it’s hard for me to get this sort of thing without pictures.
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