It seems to work! Can you see a problem with the code? You do not need series RES except for maybe the fancy blinking in setup. Just connect 8 LED's and 8 switches to the pins below. The other side of the switches to GND. #define UPER 50 //step period in ms 200 max for non-PWM #define BMAX 30 …

PWM for 8 LED's with only 6 pins available?

CrossRoads April 13, 2012, 5:44pm 10

The scope is not going to draw any current tho - you want to see the effect of resistance/capacitance/inductance/LED on the waveform.

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