Positive Knight

Pulse width modulation. Lighthouse

Arduino project # 5. Pulse width modulation. Lighthouse

Hi all! Today I am going to create a lighthouse using pulse width modulation, which means the LED will be turn on and off very quickly, so you just see it lighter or darker. For this purpose there is a function in Arduino analogWrite().  It takes two arguments: pin and value from 0 to 255 (how often per second pin will be on high level of voltage).

As you can see from the picture we also need to use one resistor (220 Ohm).




Code here:

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