Circuit 1
orignal software
modify software
The Potentiometer changes the speed and the brightness of LED light. The Potentiometer changes by changing the volts from 5 volts to 0 volts. While the volts change, the wave, square also changes. The top of the wave shows how long the light is on and the bottom of the wave shows how long the light is off..
Circuit 3
That went the circuit is using correctly the colors are changing at a constant speed.
circuit 4
Circuit 5