Hackaday Podcast Ep 334: Radioactive Shrimp Clocks, Funky Filaments, Owning the Hardware
Aug 22, 2025
Dive into the bizarre world of potentially radioactive shrimp hitting grocery stores! Explore the quirky results of the One Hertz Challenge featuring atomic clocks and timekeeping secrets. Discover tips for creating clear digital schematics, while also delving into innovative 3D printing materials. Learn how old smartphones can double as low-power servers and the sustainable future of circuitry. Plus, uncover the power of open-source firmware, allowing you to tweak your hardware and make it truly yours!
AI Snips
Chapters
Transcript
Episode notes
Candle Flames As Time Bases
- Non-electronic physical phenomena like candle-flame oscillations can provide stable low-frequency time bases.
- Tim's candle-clock uses flame coupling and capacitance sensing to derive ~9.9 Hz for LED displays.
Draw Schematics For People First
- Make schematics readable by aligning pins, avoiding unnecessary wire kinks, and grouping functional blocks.
- Use net labels, hierarchical sheets, and clear naming so others (and paper readers) can parse the design quickly.
When To Use Polypropylene Filament
- Try polypropylene filament for functional prints and living hinges, using polypropylene tape or a polypropylene print surface to improve bed adhesion.
- Expect warping and shrinkage similar to ABS and adjust bed/part design accordingly.