An interactive visualization of Pulse Width Modulation (PWM).
Drag the sliders to set the period, frequency, and duty cycle.
The period of a wave is the inverse of its frequency. Dragging one of these sliders will move the other slider in the opposite direction.
Click the checkbox to control whether the average voltage is shown. This is the voltage that a device with high reactance, such as a motor, will see.
The simulated servo at the top of the page moves at a speed that is proportional to the average voltage.
Map explorer visualizes the
Arduino / Processing / p5.js map() function.
The PWM Explorer project controls the LED on an actual Arduino. It uses pots to control the frequency and duty cycle, and sends this information to a Processing sketch that simulates an oscilloscope view of the waveform.
MIT