Timegrapher PreAmp

Timegrapher PreAmp

About the Project

Timegrapher PreAmp is the through-hole piezo preamplifier board for the Timegrapher Studio wristwatch timegrapher. It conditions the faint escapement signal from the piezo pickup and feeds the I²S ADC on the carrier HAT. This is the hand-solderable variant; an SMD version lives in Timegrapher_PreAmpSMD. Designed in KiCad. See DESIGN.md and BOM.md.

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Repository Contents

This repository contains the KiCad design and production files:

• TimegrapherPreamp.kicad_pro / .kicad_sch / .kicad_pcb — KiCad project.
• Preamp.kicad_sym / sym-lib-table — schematic symbols.
• Production/ — Gerbers, drill files, and the fabrication zip.
• TimegrapherPreamp.step — 3D model of the assembled board.
• TimegrapherPreamp_sch.pdf — schematic PDF.
• gen_sch.py / gen_pcb.py — scripts used to generate the design.
• BOM.md — bill of materials. DESIGN.md — design notes.

Refer to the CHANGELOG.md for details about updates between versions.

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Timegrapher project

Timegrapher Studio is split across several repositories:

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Learn More

Documentation

Build notes, BOM, and assembly guides can be found here: ThisOldScot Docs

ThisOldScot Community

ThisOldScot Community is a great space for the maker community — get answers to your questions and solutions for our projects there.

ThisOldScot Discord

Another option to get help and advice from other makers via the ThisOldScot Discord.

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Contributing

Contributions are welcome! Here's how you can get involved:

• Submit pull requests to enhance the design or fix issues.
• Report bugs or problems by opening an issue.

We encourage community collaboration to make this project even better.

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About ThisOldScot

ThisOldScot enjoys designing and making electronic products and projects for enthusiasts, from hobbyists to professionals — boards, sensors, hobby equipment, and anything else that catches my interest. Every project is designed in-house and built on open-source hardware and software.

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Support the team

We :heart: doing research. New hardware (e.g. oscilloscopes, logic analysers, servos, PCBs) is costly. Feel free to support us and accelerate our research.

Follow ThisOldScot

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License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Read more in the LICENSE file located in this repository.

Shield:

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Disclaimer:

These designs are provided "AS IS", without warranty of any kind, either expressed or implied. The entire quality and performance of what you do with the contents of this repository is your responsibility. In no event will ThisOldScot be liable for any damages or losses arising out of the use or inability to use the contents of this repository.

[!WARNING] Use responsibly and at your own risk.

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Have fun!

Thank you for your support from your fellow makers at ThisOldScot.

Happy Making!