36 lines
1.0 KiB
Markdown
36 lines
1.0 KiB
Markdown
---
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id: task-1
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title: Build Unpowered Crystal Telephone
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status: To Do
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assignee: []
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created_date: '2026-01-05 23:02'
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labels:
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- hardware
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- piezoelectric
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dependencies: []
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priority: high
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---
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## Description
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<!-- SECTION:DESCRIPTION:BEGIN -->
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Build the zero-power piezoelectric crystal telephone that demonstrates the reversibility of the piezoelectric effect. Two crystals connected by wire - no batteries needed\!
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This project demonstrates:
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- Direct piezoelectric effect (sound → electricity)
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- Inverse piezoelectric effect (electricity → sound)
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- Energy flows both directions through the same crystal
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Refer to piezoelectric-circuits-guide.md for full instructions.
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<!-- SECTION:DESCRIPTION:END -->
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## Acceptance Criteria
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<!-- AC:BEGIN -->
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- [ ] #1 Acquire 2x piezo discs (27mm or 35mm)
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- [ ] #2 Build acoustic couplers (funnels or cups)
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- [ ] #3 Solder wires between the two piezos
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- [ ] #4 Test communication at 1-3 meters
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- [ ] #5 Test maximum distance achievable
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- [ ] #6 Document results with photos/video
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<!-- AC:END -->
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