Paul Stoffregen

Entrepreneur & electrical engineer with 29 years of professional experience and life-long passion for overly ambitious projects

Portland, Oregon, USA
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This user joined on 02/16/2014.

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Patrick Van Oosterwijck wrote 07/05/2018 at 00:41 point

Thank you for following my #wESP32: Wired ESP32 with Ethernet and PoE and #PoE-FeatherWing projects Paul!

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marcell marosvolgyi wrote 03/18/2016 at 16:04 point

Thanks for the skull! I am having a great time experimenting with the teensy + audioshield :) Love the Audio System Design Tool + Audio Lib + Teensyduino; fun and attractive way to work. Awesome!

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Mike Bechek wrote 03/09/2016 at 01:38 point

March 8, 2016

Hi there,
This project looks super interesting. My startup out of Harvard Business School ( is looking to work with someone ASAP on something similar -- would you be interested in having a call with me and my team? Please e-mail me at mbechek(at)
The project consists of integrating a matrix of LEDs into a Tshirt with the goal of displaying the text and images on the Tshirt. The content displayed on the LEDs will be controlled from the user’s phone via an app that connects through Bluetooth to a microcontroller located in the Tshirt. The initial functionality of the project as well as the hardware and software architecture will be very similar to the one showed here:

However a few minor changes will be introduced. The major ones being: i) a customized app; ii) a Bluetooth link through the UART port of ATmega microcontroller instead of SPI; iii) possibility of displaying images (not for initial release).

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Stefan Lochbrunner wrote 12/06/2015 at 05:51 point

Hey Paul, thanks for skulling! :)

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EK wrote 11/17/2015 at 18:55 point

It was nice to chat with you at Supercon! Thank you for the Teensys!

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Paul Stoffregen wrote 11/18/2015 at 20:40 point

Glad we could meet in person, even if only briefly. Hope those Teensys come in handy for an awesome robot!

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