# Ep 315: Conductive String Theory, Decloudified Music Players, and Wild Printing Tech

- Show: [Hackaday Podcast](https://hardwarepodcasts.com/podcast/hackaday-podcast)
- Published: 2025-04-04
- Length: 41m
- Episode: 315
- Page: https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-04-04-ep-315-conductive-string-theory-decloudified-music-players-and-wild-printing-tec
- Listen: https://hackaday.com/2025/04/04/hackaday-podcast-episode-315-conductive-string-theory-decloudified-music-players-and-wild-printing-tech/

## Summary

Hackaday editors Elliot Williams and Kristina Panos review a week of hardware hacks, focusing on Tavis Gustavson’s Tron Bit project to reverse-engineer the cloud-dependent Tidy Bit display, and Noui’s security analysis of the defunct Jookie music player. They also cover Owen Bates’ conductive bioplastic string, Catherine Cannell’s Sprite Lights body art, and a deep dive into Zinc’s thermal printing technology. The episode highlights the contrast between open-source recoverability and the security risks of closed-source IoT devices.

## Chapters

- [0:01](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-04-04-ep-315-conductive-string-theory-decloudified-music-players-and-wild-printing-tec#t=1) Introduction and What's That Sound
- [2:10](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-04-04-ep-315-conductive-string-theory-decloudified-music-players-and-wild-printing-tec#t=130) Tavis Gustavson's Tron Bit and Tidy Bit Reverse Engineering
- [2:10](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-04-04-ep-315-conductive-string-theory-decloudified-music-players-and-wild-printing-tec#t=130) Noui's Security Analysis of the Jookie Music Player
- [11:24](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-04-04-ep-315-conductive-string-theory-decloudified-music-players-and-wild-printing-tec#t=684) DIY Split Keyboard and 70 DIY Synths
- [18:18](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-04-04-ep-315-conductive-string-theory-decloudified-music-players-and-wild-printing-tec#t=1098) Programmer's Macropad and Sprite Lights Body Art
- [24:48](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-04-04-ep-315-conductive-string-theory-decloudified-music-players-and-wild-printing-tec#t=1488) Owen Bates' Conductive Bioplastic String
- [27:00](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-04-04-ep-315-conductive-string-theory-decloudified-music-players-and-wild-printing-tec#t=1620) Quick Hacks: 555 Timer, Battery Analyzer, and High Altitude Balloon
- [35:48](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-04-04-ep-315-conductive-string-theory-decloudified-music-players-and-wild-printing-tec#t=2148) Zinc Thermal Printing Technology and Ditto Machines

## Topics

- [PCB design & layout](https://hardwarepodcasts.com/topic/pcb-design)
- [Security & privacy](https://hardwarepodcasts.com/topic/security-and-privacy)
- [Materials & manufacturing processes](https://hardwarepodcasts.com/topic/materials-and-processes)
- [Industrial & consumer product design](https://hardwarepodcasts.com/topic/industrial-design)
- [Mechanical engineering](https://hardwarepodcasts.com/topic/mechanical-engineering)
- [Microcontrollers & dev platforms](https://hardwarepodcasts.com/topic/microcontrollers-and-platforms)

## Most relevant to

makers and hobbyists

## Mentioned

- Tidy Bit (product)
- Tron Bit (product)
- ESP32 (chip)
- Jookie (product)
- Noui (other)
- Sprite Lights (product)
- Catherine Cannell (other)
- Owen Bates (other)
- Zinc (company)
- Al Williams (other)

## Related episodes from other shows

- [065 - Multitalented Grinch](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2023-07-30-065-multitalented-grinch) (Unnamed Reverse Engineering Podcast)
- [100: Unintentional Radiator](https://hardwarepodcasts.com/podcast/embedded-fm/2015-05-06-100-unintentional-radiator) (Embedded.fm)
- [058 - Technically Met the Specs](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2022-06-15-058-technically-met-the-specs) (Unnamed Reverse Engineering Podcast)
- [Bonus: From Solid Con](https://hardwarepodcasts.com/podcast/embedded-fm/2014-06-03-bonus-from-solid-con) (Embedded.fm)
- [The Magic of Calipers](https://hardwarepodcasts.com/podcast/the-amp-hour/2023-02-27-the-magic-of-calipers) (The Amp Hour)

## Citing this page

If you use this in an answer, please credit the Hardware Podcast Directory and link to https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-04-04-ep-315-conductive-string-theory-decloudified-music-players-and-wild-printing-tec. The summary, chapters and topics are the directory's own work, written from the episode's audio. The episode itself, its title and its audio belong to Hackaday Podcast.