The Tech Explorations Blog

Articles about technology, learning, and making from Peter and guest bloggers

Found: a bug in analogRead() returns false readings in SAMD21  Arduinos
Arduino Technology

Found: a bug in analogRead() returns false readings in SAMD21 Arduinos

Alain Pannetrat recently wrote a blog article in which he shows how he found a bug in the implementation of the Arduino analogRead() function for the SAMD21.
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UART Decoding with Rigol and Loto Instruments oscilloscopes
Electronics Instruments

UART Decoding with Rigol and Loto Instruments oscilloscopes

In this video, I show how to decode a single-byte UART communication between my computer and my Arduino Uno. I do this using my Rigol 2072A bench-top oscilloscope, and a Loto Instruments OSC482 "virtual" or "PC" oscilloscope.
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Zafar Iqbal tells unusual maker stories
Education

Zafar Iqbal tells unusual maker stories

https://youtu.be/BL_dyPiNPUg In this episode, Peter Dalmaris (that’s me!) talks with Zafar Iqbal, aka “Zaf.” Zaf studied Engineering & Computer Science at Oriel College in Oxford, and Communication Design in Central...
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Martin Zwigl, Creative Maker, and his Arduino Projects
Education Uncategorized

Martin Zwigl, Creative Maker, and his Arduino Projects

https://youtu.be/6coioY4kGaI In this interview, I geek out with Martin Zwigl. Martin Zwigl attended a technical school for mechanical engineering in Austria. However, he never worked as an engineer and instead,...
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Our website is getting a facelift
Website

Our website is getting a facelift

Over the last couple of months, we've been working on a major update for our website. With this update, we aim to modernize the user interface and to make your learning experience more efficient and productive.

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Richard Park on Network Engineering
Guest Podcast

Richard Park on Network Engineering

https://youtu.be/e56LglCCnuU Richard Park has been teaching full time for twenty years. He currently teaches college-level Network Engineering and is creating an “IoT Explorations” course for the coming school year.  Richard...
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Alain Pannetrat, Founder of Omzlo, discusses NoCan
Education Guest Podcast

Alain Pannetrat, Founder of Omzlo, discusses NoCan

https://youtu.be/pbBT9FeS0As Alain Pannetrat is the founder of OMZLO, a company that designs, manufactures, and sells open-source hardware with a focus on wired IoT.  Alain also works as a product manager...
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ESP32 Unleashed, a sample lecture
ESP32

ESP32 Unleashed, a sample lecture

ESP32 Unleashed is a project course. The structure of the course resembles my development process. My development process, whether it is a course, a gadget, or a book, or fixing...
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ESP32: how to retrieve a file from the SPIFFS
ESP32

ESP32: how to retrieve a file from the SPIFFS

In ESP32 For Busy People, I have a section on the SPIFFS, the SPI file system. In this section, I show you how you can upload a file (like an...
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PlatformIO + ESP32: 6 top reasons for learning it
ESP32

PlatformIO + ESP32: 6 top reasons for learning it

In this article, I write about my top six reasons why I decided to learn how to use PlatformIO (in no particular order).
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