# Ep 121: Crazy Bikes, DIY Flip Dots, EV Mountain Climbing, and Trippy Tripterons

- Show: [Hackaday Podcast](https://hardwarepodcasts.com/podcast/hackaday-podcast)
- Published: 2021-06-04
- Length: 48m
- Episode: 121
- Page: https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-06-04-ep-121-crazy-bikes-diy-flip-dots-ev-mountain-climbing-and-trippy-tripterons
- Listen: https://hackaday.libsyn.com/ep-121-crazy-bikes-diy-flip-dots-ev-mountain-climbing-and-trippy-tripterons

## Summary

Hackaday editors Mike Szczys and Elliot Williams discuss a week of hardware hacks, highlighting the Raspberry Pi Foundation's decision to sell the RP2040 microcontroller as a standalone chip. They examine several mechanical projects, including Larry Baugh's 3D-printed flip dots, J.K. Lee's tripteron kinematics, and Carl Bujega's PCB coil-based robot. The episode also covers bicycle innovations like a front-fork differential and a flywheel energy storage system, alongside discussions on AI-emulated guitar pedals and EV racing at Pike's Peak.

## Chapters

- [0:01](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-06-04-ep-121-crazy-bikes-diy-flip-dots-ev-mountain-climbing-and-trippy-tripterons#t=1) Introduction: Hackaday Podcast Ep 121
- [0:14](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-06-04-ep-121-crazy-bikes-diy-flip-dots-ev-mountain-climbing-and-trippy-tripterons#t=14) Raspberry Pi RP2040 Single Chip Availability
- [5:05](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-06-04-ep-121-crazy-bikes-diy-flip-dots-ev-mountain-climbing-and-trippy-tripterons#t=305) Sound Effects Guessing Game
- [5:48](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-06-04-ep-121-crazy-bikes-diy-flip-dots-ev-mountain-climbing-and-trippy-tripterons#t=348) Larry Baugh's 3D Printed Flip Dots
- [12:13](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-06-04-ep-121-crazy-bikes-diy-flip-dots-ev-mountain-climbing-and-trippy-tripterons#t=733) J.K. Lee's Tripteron Kinematics
- [15:31](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-06-04-ep-121-crazy-bikes-diy-flip-dots-ev-mountain-climbing-and-trippy-tripterons#t=931) Carl Bujega's PCB Coil Robot
- [19:34](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-06-04-ep-121-crazy-bikes-diy-flip-dots-ev-mountain-climbing-and-trippy-tripterons#t=1174) AI-Emulated Guitar Pedals
- [22:45](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-06-04-ep-121-crazy-bikes-diy-flip-dots-ev-mountain-climbing-and-trippy-tripterons#t=1365) Bicycle Hacks: Differential and Flywheel
- [29:00](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-06-04-ep-121-crazy-bikes-diy-flip-dots-ev-mountain-climbing-and-trippy-tripterons#t=1740) RC Test Flight Solar Plane
- [34:36](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-06-04-ep-121-crazy-bikes-diy-flip-dots-ev-mountain-climbing-and-trippy-tripterons#t=2076) EV Racing at Pike's Peak
- [43:36](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-06-04-ep-121-crazy-bikes-diy-flip-dots-ev-mountain-climbing-and-trippy-tripterons#t=2616) History of Closed Captions

## Topics

- [Microcontrollers & dev platforms](https://hardwarepodcasts.com/topic/microcontrollers-and-platforms)
- [Mechanical engineering](https://hardwarepodcasts.com/topic/mechanical-engineering)
- [AI & machine learning](https://hardwarepodcasts.com/topic/ai-and-machine-learning)
- [Energy & climate tech](https://hardwarepodcasts.com/topic/energy-and-climate-tech)
- [Embedded firmware](https://hardwarepodcasts.com/topic/embedded-firmware)

## Most relevant to

makers and hobbyists

## Mentioned

- Raspberry Pi (company)
- RP2040 (chip)
- Pico (product)
- Ada Fruit (company)
- Arduino (company)
- SparkFun (company)
- Larry Baugh (other)
- J.K. Lee (other)
- Nicholas Seward (other)
- Universite Laval (company)
- Carl Bujega (other)
- ElkOS (other)
- Hi-Fi Berry (product)
- RC Test Flight (other)
- The Solar Bear (product)
- Holger Lambertus (other)
- Christopher B (other)
- Junos Pyologima (other)
- ESP32 (chip)
- Grady (other)
- Oroville dam (other)
- Peter (other)
- Samsung (company)
- I fix it (other)
- Lou (other)
- Pike's Peak (other)
- Volkswagen (company)
- Chris Lott (other)
- WGBH (company)

## Related episodes from other shows

- [Raspberry Pi 500, Robot Roadies, Huge 3d Printers and Car Hacking!](https://hardwarepodcasts.com/podcast/the-electromaker-show/2023-11-26-raspberry-pi-500-robot-roadies-huge-3d-printers-and-car-hacking) (The Electromaker Show)
- [Arduino User Groups Return, new RP2040 boards, TinyML Drill!](https://hardwarepodcasts.com/podcast/the-electromaker-show/2022-06-10-arduino-user-groups-return-new-rp2040-boards-tinyml-drill) (The Electromaker Show)
- [MNT Pocket Reform, Apple E-Ink display, Pi Pico Midi Step Sequencer, and more!](https://hardwarepodcasts.com/podcast/the-electromaker-show/2022-09-28-mnt-pocket-reform-apple-e-ink-display-pi-pico-midi-step-sequencer-and-more) (The Electromaker Show)
- [069 - Canned Cheese and Onion Rings](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2024-04-17-069-canned-cheese-and-onion-rings) (Unnamed Reverse Engineering Podcast)
- [Productive Pi Hacks, Amazing Arduino Inventions, New Hardware Galore!](https://hardwarepodcasts.com/podcast/the-electromaker-show/2023-07-27-productive-pi-hacks-amazing-arduino-inventions-new-hardware-galore) (The Electromaker Show)

## Citing this page

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