Instructables: exploring - technology - microcontrollers - avr - pcb - popular http://www.instructables.com Mon, 26 Sep 2016 10:45:04 PDT BLOX v1.01 How to drive a lot of LEDs from a few microcontroller pins. http://www.instructables.com/id/How-to-drive-a-lot-of-LEDs-from-a-few-microcontrol/
How to drive a lot of LEDs from a few microcontroller pins. - More DIY How To Projects]]> https://cdn.instructables.com/FDR/41GC/8RYEP27Y2FY/FDR41GC8RYEP27Y2FY.SQUARE2.jpg https://cdn.instructables.com/FDR/41GC/8RYEP27Y2FY/FDR41GC8RYEP27Y2FY.SQUARE.jpg https://cdn.instructables.com/FDR/41GC/8RYEP27Y2FY/FDR41GC8RYEP27Y2FY.SMALL.jpg westfw Using the fact that many microcontroller pins have three states (+V, GND, or"high impedence", you can drive N*(N-1) LEDs from N pins. So the little 8pin microcontroller like a PIC12Fxxx or an ATtiny11 can drive 20 LEDs onits five available output pins, and still have one pin left for some kind of i...
By: westfw

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