Everything for Electronics
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Build a Graphing Altimeter

I think it’s fun to know the altitude where I am. While travelling, it’s difficult to pay close attention to the elevation of each moment, and this graph allows me to see where I have been in elevation. I can enjoy the peaks and valleys of my journey, even if I wasn’t able to view the readings at those particular moments.

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The Big Bang Z-Pinch Machine

Do you like doing science experiments? I don’t mean vinegar and baking soda volcanoes. I mean building a real scientific apparatus that uses a Z-pinch effect to squeeze the daylights out of a soda can in the blink of an eye. KA-BANG!!!

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The 555 for Today’s Projects

In 1970, Signetics engineer Hans Camenzind designed the 555 programmable timer chip. Fifty-three years later, it’s still going strong as the world’s largest selling integrated circuit. I’ll explain the inner workings of the 555 and help make you an expert on creating your own 555-based designs.

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A Realistic Fake Car Alarm “Blinky” Light

Most of us have seen the car alarm “blinky” light through a vehicle’s window. However, a fake light is easy to differentiate from the real thing in the way it operates. The fake LED would blink constantly, while the “real thing” would blink only once every few seconds. Here’s a circuit to make the fake more realistic.

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Build a Laser Alignment System for Your Telescope

There are several key steps to setting up a telescope. Some people use a compass and a broomstick to align their telescope. In this article, I’ll show you how to build a laser alignment circuit to easily align your telescope mount/tripod with “True North.”

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Rescue of a High-End Multimeter

By extending the life of a multimeter with a faded OLED screen with the help of Python and an Arduino, we’ve created a multimeter-based data logging system, with the multimeter functioning as a high-end measurement engine.

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Adding an Audible Circuit Alarm

The most often used trouble indicator in a circuit is the ubiquitous LED. Unfortunately, we don’t always have eyes on our equipment to see when problems arise.  Here’s a simple way to add an audio trouble alarm to circuits that only have a visual indicator.

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