https://github.com/osteele/pwm-explorer

Interactive visualization of Pulse Width Modulation (PWM)
https://github.com/osteele/pwm-explorer

arduino education pwm visualization

Last synced: about 1 month ago
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Interactive visualization of Pulse Width Modulation (PWM)

• Host: GitHub
• URL: https://github.com/osteele/pwm-explorer
• Owner: osteele
• Created: 2020-10-15T01:43:08.000Z (over 5 years ago)
• Default Branch: main
• Last Pushed: 2020-12-09T04:14:24.000Z (over 5 years ago)
• Last Synced: 2025-07-09T05:03:26.230Z (12 months ago)
• Topics: arduino, education, pwm, visualization
• Language: JavaScript
• Homepage: https://osteele.github.io/pwm-explorer/
• Size: 348 KB
• Stars: 3
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# PWM Explorer

An interactive visualization of Pulse Width Modulation (PWM).

![screenshot](docs/screenshot.png)

## Instructions

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.

## Related

[Map explorer](https://osteele.github.io/map-explorer/) visualizes the

Arduino / Processing / p5.js `map()` function.

The [PWM Explorer](https://github.com/osteele/arduino-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.

## License

MIT