# An Interview with Ronald Sousa of Hash Define Electronics

- Show: [The Amp Hour](https://hardwarepodcasts.com/podcast/the-amp-hour)
- Published: 2015-09-10
- Length: 1h 28m
- Episode: 266
- Page: https://hardwarepodcasts.com/podcast/the-amp-hour/2015-09-10-an-interview-with-ronald-sousa-of-hash-define-electronics
- Listen: https://theamphour.com/266-an-interview-with-ronald-sousa-of-hash-define-electronics/

## Summary

Ronald Sousa, a contractor at Hash Define Electronics, discusses his work designing embedded systems for fuel delivery trucks in the UK. He details the engineering challenges of intrinsically safe (ATEX) certification, flow metering technologies like slip gears and ultrasonic sensors, and the complexities of CAN bus network management in hazardous environments. Sousa also shares anecdotes about field debugging, sensor calibration, and the logistical realities of hardware deployment.

## Chapters

- [0:00](https://hardwarepodcasts.com/podcast/the-amp-hour/2015-09-10-an-interview-with-ronald-sousa-of-hash-define-electronics#t=0) Introduction and UK Electronics Landscape
- [23:03](https://hardwarepodcasts.com/podcast/the-amp-hour/2015-09-10-an-interview-with-ronald-sousa-of-hash-define-electronics#t=1383) Fuel Delivery Industry and ATEX Safety Standards
- [35:28](https://hardwarepodcasts.com/podcast/the-amp-hour/2015-09-10-an-interview-with-ronald-sousa-of-hash-define-electronics#t=2128) Flow Metering Technologies: Gears, Turbines, and Ultrasound
- [50:23](https://hardwarepodcasts.com/podcast/the-amp-hour/2015-09-10-an-interview-with-ronald-sousa-of-hash-define-electronics#t=3023) CAN Bus Networking and Node ID Assignment
- [1:14:50](https://hardwarepodcasts.com/podcast/the-amp-hour/2015-09-10-an-interview-with-ronald-sousa-of-hash-define-electronics#t=4490) Sensor Calibration, Traceability, and Field Debugging

## Topics

- [Embedded firmware](https://hardwarepodcasts.com/topic/embedded-firmware)
- [Sensors & measurement in products](https://hardwarepodcasts.com/topic/sensors)
- [Certification & compliance](https://hardwarepodcasts.com/topic/certification-and-compliance)
- [Debugging & failure analysis](https://hardwarepodcasts.com/topic/debugging-and-failure-analysis)
- [Microcontrollers & dev platforms](https://hardwarepodcasts.com/topic/microcontrollers-and-platforms)

## Most relevant to

early-stage companies

## Mentioned

- Hash Define Electronics (company)
- Farnell (company)
- Element14 (company)
- Newark (company)
- Cocoon (product)
- Raspberry Pi (product)
- Arm (company)
- LPC11C14 (chip)
- NXP (company)
- Microchip (company)
- ATEX (other)
- National Weights and Measures (other)

## Related episodes from other shows

- [387: Bucket of Spiders](https://hardwarepodcasts.com/podcast/embedded-fm/2021-09-23-387-bucket-of-spiders) (Embedded.fm)
- [Ep 323: Impossible CRT Surgery, Fuel Cells, Stream Gages, and a Love Letter to Microcontrollers](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-05-30-ep-323-impossible-crt-surgery-fuel-cells-stream-gages-and-a-love-letter-to-micro-a749ff00) (Hackaday Podcast)
- [065 - Multitalented Grinch](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2023-07-30-065-multitalented-grinch) (Unnamed Reverse Engineering Podcast)
- [203: Save My Board](https://hardwarepodcasts.com/podcast/embedded-fm/2017-06-08-203-save-my-board) (Embedded.fm)
- [155: Foot-Seeking Bullet](https://hardwarepodcasts.com/podcast/embedded-fm/2016-06-08-155-foot-seeking-bullet) (Embedded.fm)

## 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/2015-09-10-an-interview-with-ronald-sousa-of-hash-define-electronics. 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.