# Secret Buzzer Handshake

- Show: [The Amp Hour](https://hardwarepodcasts.com/podcast/the-amp-hour)
- Published: 2018-10-07
- Length: 1h 14m
- Episode: 410
- Page: https://hardwarepodcasts.com/podcast/the-amp-hour/2018-10-07-secret-buzzer-handshake
- Listen: https://theamphour.com/410-secret-buzzer-handshake/

## Summary

Chris Gammell and Dave Jones discuss PCB layout best practices, specifically regarding long traces, analog/digital separation, and ground planes, while also covering the IEEE membership structure and the manufacturing of custom drone batteries. They review the CHMT36VA pick-and-place machine, noting its hardware quality versus software limitations, and touch on the low cost of modern PCB prototyping via services like JLCPCB. The conversation concludes with a look at the Hayabusa 2 asteroid landing and the safety implications of shipping lithium batteries from China.

## Chapters

- [0:00](https://hardwarepodcasts.com/podcast/the-amp-hour/2018-10-07-secret-buzzer-handshake#t=0) Introduction: Open Hardware Summit and IEEE Membership
- [17:54](https://hardwarepodcasts.com/podcast/the-amp-hour/2018-10-07-secret-buzzer-handshake#t=1074) PCB Layout Best Practices: Long Traces and Ground Planes
- [45:34](https://hardwarepodcasts.com/podcast/the-amp-hour/2018-10-07-secret-buzzer-handshake#t=2734) Drone Battery Manufacturing Process
- [1:00:36](https://hardwarepodcasts.com/podcast/the-amp-hour/2018-10-07-secret-buzzer-handshake#t=3636) CHMT36VA Pick-and-Place Machine and PCB Prototyping Costs
- [34:16](https://hardwarepodcasts.com/podcast/the-amp-hour/2018-10-07-secret-buzzer-handshake#t=2056) Hayabusa 2 Asteroid Landing and Space Technology

## Topics

- [PCB design & layout](https://hardwarepodcasts.com/topic/pcb-design)
- [Materials & manufacturing processes](https://hardwarepodcasts.com/topic/materials-and-processes)
- [Manufacturing partners & offshoring](https://hardwarepodcasts.com/topic/manufacturing-partners)
- [Policy, trade & tariffs](https://hardwarepodcasts.com/topic/policy-trade-and-tariffs)
- [Robotics & autonomy](https://hardwarepodcasts.com/topic/robotics-and-autonomy)

## Most relevant to

early-stage companies

## Mentioned

- IEEE (other)
- CHMT36VA (tool)
- Neoden (other)
- Open PnP (other)
- JLCPCB (other)
- Rode (company)
- Hayabusa 2 (product)
- SparkFun (company)
- DigiKey (other)
- Mouser (other)

## Related episodes from other shows

- [20: Soldered Together By Monkeys](https://hardwarepodcasts.com/podcast/embedded-fm/2013-09-26-20-soldered-together-by-monkeys) (Embedded.fm)
- [PCB Assembly Mistakes Designers Keep Making: PCB West 2026 Preview](https://hardwarepodcasts.com/podcast/ontrack/2026-09-09-pcb-assembly-mistakes-designers-keep-making-pcb-west-2026-preview) (OnTrack)
- [The Future of PCB Manufacturing: Tariffs, Supply Chains & More](https://hardwarepodcasts.com/podcast/ontrack/2025-04-18-the-future-of-pcb-manufacturing-tariffs-supply-chains-more) (OnTrack)
- [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)
- [The Spark Gap - Episode 21](https://hardwarepodcasts.com/podcast/the-spark-gap/2014-11-26-the-spark-gap-episode-21) (The Spark Gap)

## Citing this page

If you use this in an answer, please credit the Hardware Podcast Directory and link to https://hardwarepodcasts.com/podcast/the-amp-hour/2018-10-07-secret-buzzer-handshake. 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 The Amp Hour.