# Ep 304: Glitching the RP2350, Sim Sim Sim, and a Scrunchie Clock

- Show: [Hackaday Podcast](https://hardwarepodcasts.com/podcast/hackaday-podcast)
- Published: 2025-01-17
- Length: 59m
- Episode: 304
- Page: https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-01-17-ep-304-glitching-the-rp2350-sim-sim-sim-and-a-scrunchie-clock
- Listen: https://hackaday.libsyn.com/ep-304-glitching-the-rp2350-sim-sim-sim-and-a-scrunchie-clock

## Summary

Hosts Elliot Williams and Dan Maloney review recent Hackaday projects, including Aiden Cullen's successful fault injection attack on the RP2350 microcontroller to access hidden security memory, and Mitzella's fluid simulation pendant. They also discuss a Manhattan-style direct conversion radio, an ESP8266-based fault injection coordinator, and Ed Karatsis's mechanical 'Scrunchie Clock' that uses hair springs to display digits. The episode covers various engineering challenges, from bypassing anti-glitching circuitry to designing mechanical cams for digital displays.

## Chapters

- [0:01](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-01-17-ep-304-glitching-the-rp2350-sim-sim-sim-and-a-scrunchie-clock#t=1) Introduction: Hackaday Europe and Hack Chat with Eben Upton
- [3:54](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-01-17-ep-304-glitching-the-rp2350-sim-sim-sim-and-a-scrunchie-clock#t=234) Ross Ice Shelf Sound and RP2350 Security Contest
- [9:01](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-01-17-ep-304-glitching-the-rp2350-sim-sim-sim-and-a-scrunchie-clock#t=541) Aiden Cullen's RP2350 Glitching and Fault Injection Attacks
- [12:12](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-01-17-ep-304-glitching-the-rp2350-sim-sim-sim-and-a-scrunchie-clock#t=732) Direct Conversion Radio and 3D Printed Threads
- [18:01](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-01-17-ep-304-glitching-the-rp2350-sim-sim-sim-and-a-scrunchie-clock#t=1081) Mitzella's Fluid Simulation Pendant
- [24:10](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-01-17-ep-304-glitching-the-rp2350-sim-sim-sim-and-a-scrunchie-clock#t=1450) ESP8266 Fault Injection Coordinator
- [33:49](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-01-17-ep-304-glitching-the-rp2350-sim-sim-sim-and-a-scrunchie-clock#t=2029) Ed Karatsis's Scrunchie Clock
- [40:34](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-01-17-ep-304-glitching-the-rp2350-sim-sim-sim-and-a-scrunchie-clock#t=2434) Quick Picks: Drones, Microphones, and CNC
- [46:46](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-01-17-ep-304-glitching-the-rp2350-sim-sim-sim-and-a-scrunchie-clock#t=2806) Can't-Miss Articles: Loran and Digital Ham Radio

## Topics

- [Debugging & failure analysis](https://hardwarepodcasts.com/topic/debugging-and-failure-analysis)
- [Microcontrollers & dev platforms](https://hardwarepodcasts.com/topic/microcontrollers-and-platforms)
- [Mechanical engineering](https://hardwarepodcasts.com/topic/mechanical-engineering)
- [PCB design & layout](https://hardwarepodcasts.com/topic/pcb-design)
- [Wireless & RF](https://hardwarepodcasts.com/topic/wireless-and-rf)
- [Prototyping & iteration](https://hardwarepodcasts.com/topic/prototyping)

## Most relevant to

makers and hobbyists

## Mentioned

- RP2350 (chip)
- Raspberry Pi (company)
- Aiden Cullen (other)
- Mitzella (other)
- Ed Karatsis (other)
- ESP8266 (chip)
- Brandmeister (other)

## Related episodes from other shows

- [The RP2350 with the Raspberry Pi Team](https://hardwarepodcasts.com/podcast/the-amp-hour/2025-01-28-the-rp2350-with-the-raspberry-pi-team) (The Amp Hour)
- [004 - 0x0FF the Rails](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2017-10-13-004-0x0ff-the-rails) (Unnamed Reverse Engineering Podcast)
- [It Works With Option Number 5](https://hardwarepodcasts.com/podcast/the-amp-hour/2025-06-19-it-works-with-option-number-5) (The Amp Hour)
- [1 Inch HDMI Second Screen, Retro Wall Art, and more!](https://hardwarepodcasts.com/podcast/the-electromaker-show/2022-04-06-1-inch-hdmi-second-screen-retro-wall-art-and-more) (The Electromaker Show)
- [405: Bacta Tank for Your Brain](https://hardwarepodcasts.com/podcast/embedded-fm/2022-03-11-405-bacta-tank-for-your-brain) (Embedded.fm)

## Citing this page

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