Elektor Article: Artificial Intelligence for Beginners (Part 1)
AI

Elektor Article: Artificial Intelligence for Beginners (Part 1)

This time we have the perfect, hands-on entry to Artificial Intelligence. Using the €30 (!) Maixduino board with its fitted camera, LCD panel and… Arduino IDE (!) we present a flying start into AI with demos including one that can recognize 1000 different objects. The use of...

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Free Elektor Article: Current Transformer for Oscilloscopes
Test/Measurements

Free Elektor Article: Current Transformer for Oscilloscopes

Commercial current clamp devices certainly are able to measure current by potential-free means but they are not suitable for capturing rapid alterations in current over time. In addition, many low-cost examples of these do not provide an output for connecting to an oscilloscope. Here...

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Free Elektor Article: Using E-paper with the Arduino
LCD/OLED/ePaper

Free Elektor Article: Using E-paper with the Arduino

Electronic paper — a.k.a. e-paper — is an unusual type of display. Once a picture (or text) is displayed, no further energy is required to maintain the display. Energy is only required to change the display. This is very useful in applications where the amount of available energy is...

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Free Elektor Article: Card Sound
Audio

Free Elektor Article: Card Sound

With a smartphone or an MP3 player it’s easy to play audio files, but generally not at room strength or if you can, only in wretched quality. The Card Sound project makes it possible to fill the room with music and have excellent sound reproduction! This lightweight and compact player...

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Free Elektor Article: DDS Function Generator
Test Equipment

Free Elektor Article: DDS Function Generator

DDS chips are readily available, greatly simplifying the design of the analog part of a wide-range function- or signal generator. All you need to do (they say!) is choose one, add some suitable output circuitry, pick a microcontroller, provide a user interface and start programming. To...

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Free Elektor Article – Spiral MicroTesla
High Voltage

Free Elektor Article – Spiral MicroTesla

Original publication: Elektor magazine 6/2017, page 58. Author: Daniel Eindhoven. Free download expires Friday 27 December 2019. 1. Introduction It seems to be an unwritten rule in Hollywood: there must be an assortment of devices that crackle and spark in the lab of a mad scientist....

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Free Elektor Circuit – An NE555 Watchdog Timer
Basic Electronics

Free Elektor Circuit – An NE555 Watchdog Timer

from an Idea by Wolfgang Borst (Germany) Virtually every modern microcontroller has a built-in watchdog. It prevents the microcontroller ‘hanging’ which may be the result of a programming error or an unforeseen operating condition, where, for example, the program becomes trapped in...

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Free Elektor Article: Arduino Temperature Recorder
Arduino

Free Elektor Article: Arduino Temperature Recorder

Using the tiny Arduino Uno, you can build all manner of really neat small projects at modest cost. This one is a simple temperature recorder that shows on a display screen the values measured during the past 24 hours. Of particular note is the software, which manages all of the...

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