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#arduino#debouncing#switchbounce

Bouncy Button - Introduction

Adam Fraser-Kruck

46 subscribers • 2 videos on Hallway

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  • Recommended by 1 person: 1 in engineering communities.
  • Presented by Adam Fraser-Kruck
  • Linked in the descriptionadamfk/bouncy-button

Intermediate. Assumes working knowledge.

81 views2 years ago1 recommendation

HardwareSystems programmingEmbedded systemsElectronics

Adam Fraser-Kruck introduces Bouncy Button, an open-source Arduino tool for measuring and analyzing switch bounce.

Project: github.com/adamfk/bouncy-button/ Other useful links about button bounce/debounce: - Digikey video: youtube.com/watch?v=IvU8m_30iK0 - Jack Ganssle article: ganssle.com/debouncing.htm Chapters: intro demo - setup demo - capture data demo - analyze data debounce database low cost scope issues & bounce pulse width how long to record for & Jack Ganssle bouncy button workings reasons to use and not use 133ms bad button future videos

Why it's here

1 person recommends this

What people say. Recommended as a cool open-source tool and video demonstration for analyzing switch bounce.

u/a-d-a-m-f-kin r/embedded • Recommends

On “Sometimes 50ms isn't enough. An open source tool for switch bounce experiments. Mostly for curiosity.”

TLDR - You don't need this, but it is cool. A high performance AVR (Arduino Uno) program for switch bounce experiments. Detects pulses as short as 62.5ns. Rivals fancy oscilloscopes for this *one* purpose. If you prefer video to text, this 12 minute video demos the project, and analyzes both a nasty switch and a great one. I used to think that a healthy switch would bounce for 20ms or less. Surely it would never bounce more than 50ms. Then a switch I was using for a project bounced way more! The switch hadn't been used before, so I checked my wiring and brought out my scope. The switch barely bounced at all for the next 10 presses. Okay, chalk it up to gremlins. On a whim, I pressed it 5…
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