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?

system April 13, 2012, 5:06pm 7

Can we look at the shape of the current (voltage) curve with an Oscilloscope?
10ms?
10us?
How would you design this experiment?

Topic		Replies	Views
Arduino Uno R3 / 8 LED an PWM Deutsch	4	3264	May 6, 2021
Many LED's on PWM outs Interfacing	3	1395	May 6, 2021
How many LEDs can you PWM? General Guidance	14	7695	May 5, 2021
Is there a max mA for LEDs on the Arduino UNO? Interfacing	18	23291	May 6, 2021
Dim LEDs with multiplexing Interfacing	10	5573	May 6, 2021