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pedalplan plays guitar pedal schematics live

A tool made with Claude shows a pedal schematic whose knobs and switches respond live, so builders can hear how component values change the sound before building.

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Credits

  • Reddit poster producedbytrials Source ↗

Earliest dated source: 10 Nov 2026

The full story

pedalplan is a browser tool for guitar pedal builders made with Claude. At its core is a live schematic player: knobs, switches and buttons respond to clicks and drags, and you can hear the circuit with live input, an uploaded clip or examples. Holding Shift over a part shows alternative values and how they change the sound.

It also simulates LDRs and echo chips for modulation, designs enclosures and drill templates, exports a bill of materials and imports files. It works offline in the browser and is free.

How it was done

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Sources

From a short post by the maker, so the details are as they tell them.

  • Reddit: pedalplan - hear schematics live + build from breadboard to boxedForum threadreddit.com
    Reddit poster: producedbytrialsPosted 10 Nov 2026

    The maker's post in r/diypedals.

  • The project: hendle.auBlog or write-uphendle.au

    The tool.

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