# #456.1 - An Interview with Schneider and Rahix of the Card10 Badge Team (CCCamp 2019)

- Show: [The Amp Hour](https://hardwarepodcasts.com/podcast/the-amp-hour)
- Published: 2019-08-28
- Length: 59m
- Page: https://hardwarepodcasts.com/podcast/the-amp-hour/2019-08-28-456-1-an-interview-with-schneider-and-rahix-of-the-card10-badge-team-cccamp-2019
- Listen: https://theamphour.com/456-1-an-interview-with-schneider-and-rahix/

## Summary

Schneider and Rahix of the Card10 Badge Team discuss the design and production of the Card10 conference badge, which features an NXP LPC55S69 microcontroller and an ECG front-end. They detail the dual-core firmware architecture using FreeRTOS and MicroPython, the integration of various sensors like the BME680, and the challenges of sourcing components and managing a 5,000-unit production run. The team also explains their open-source hardware approach, including the use of KiCad, USB-C debugging, and community-driven software contributions.

## Chapters

- [0:00](https://hardwarepodcasts.com/podcast/the-amp-hour/2019-08-28-456-1-an-interview-with-schneider-and-rahix-of-the-card10-badge-team-cccamp-2019#t=0) Introduction: Card10 Badge Overview and Team
- [3:11](https://hardwarepodcasts.com/podcast/the-amp-hour/2019-08-28-456-1-an-interview-with-schneider-and-rahix-of-the-card10-badge-team-cccamp-2019#t=191) Card10 Hardware Design and ECG Features
- [6:03](https://hardwarepodcasts.com/podcast/the-amp-hour/2019-08-28-456-1-an-interview-with-schneider-and-rahix-of-the-card10-badge-team-cccamp-2019#t=363) NXP LPC55S69 Microcontroller and Firmware Architecture
- [7:35](https://hardwarepodcasts.com/podcast/the-amp-hour/2019-08-28-456-1-an-interview-with-schneider-and-rahix-of-the-card10-badge-team-cccamp-2019#t=455) Production Challenges, Sourcing, and Budget
- [16:45](https://hardwarepodcasts.com/podcast/the-amp-hour/2019-08-28-456-1-an-interview-with-schneider-and-rahix-of-the-card10-badge-team-cccamp-2019#t=1005) Dual-Core Firmware: FreeRTOS, MicroPython, and Rust
- [23:18](https://hardwarepodcasts.com/podcast/the-amp-hour/2019-08-28-456-1-an-interview-with-schneider-and-rahix-of-the-card10-badge-team-cccamp-2019#t=1398) PCB Design with KiCad and Manufacturing Details
- [26:00](https://hardwarepodcasts.com/podcast/the-amp-hour/2019-08-28-456-1-an-interview-with-schneider-and-rahix-of-the-card10-badge-team-cccamp-2019#t=1560) Integration with badge.team and App Distribution
- [32:30](https://hardwarepodcasts.com/podcast/the-amp-hour/2019-08-28-456-1-an-interview-with-schneider-and-rahix-of-the-card10-badge-team-cccamp-2019#t=1950) Debugging, USB-C Interface, and Bootloader
- [36:48](https://hardwarepodcasts.com/podcast/the-amp-hour/2019-08-28-456-1-an-interview-with-schneider-and-rahix-of-the-card10-badge-team-cccamp-2019#t=2208) ECG Implementation and Sensor Data
- [43:26](https://hardwarepodcasts.com/podcast/the-amp-hour/2019-08-28-456-1-an-interview-with-schneider-and-rahix-of-the-card10-badge-team-cccamp-2019#t=2606) Lessons Learned: Prototyping, Components, and Future Use

## Topics

- [Microcontrollers & dev platforms](https://hardwarepodcasts.com/topic/microcontrollers-and-platforms)
- [Embedded firmware](https://hardwarepodcasts.com/topic/embedded-firmware)
- [Sensors & measurement in products](https://hardwarepodcasts.com/topic/sensors)
- [PCB design & layout](https://hardwarepodcasts.com/topic/pcb-design)
- [Debugging & failure analysis](https://hardwarepodcasts.com/topic/debugging-and-failure-analysis)
- [Open-source hardware](https://hardwarepodcasts.com/topic/open-source-hardware)

## Most relevant to

makers and hobbyists

## Mentioned

- Card10 (product)
- NXP (company)
- LPC55S69 (chip)
- BME680 (chip)
- KiCad (tool)
- FreeRTOS (other)
- MicroPython (other)
- badge.team (other)

## Related episodes from other shows

- [Ep044: Special Supercon Edition](https://hardwarepodcasts.com/podcast/hackaday-podcast/2019-11-22-ep044-special-supercon-edition) (Hackaday Podcast)
- [523: Bad Experience With Donuts](https://hardwarepodcasts.com/podcast/embedded-fm/2026-04-02-523-bad-experience-with-donuts) (Embedded.fm)
- [350: The State of the Empire Is Good](https://hardwarepodcasts.com/podcast/embedded-fm/2020-11-06-350-the-state-of-the-empire-is-good) (Embedded.fm)
- [381: Mass Sponge Migration](https://hardwarepodcasts.com/podcast/embedded-fm/2021-07-22-381-mass-sponge-migration) (Embedded.fm)
- [Ep 387: Superhuman Clocks, CAN in USB-C, and the Joys of Bare Metal](https://hardwarepodcasts.com/podcast/hackaday-podcast/2026-09-18-ep-387-superhuman-clocks-can-in-usb-c-and-the-joys-of-bare-metal) (Hackaday Podcast)

## Citing this page

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