Latest From The Blog

If you were following my newsletter 2-3 years ago, you might remember 9 Circuits. That was a very popular ebook I wrote and sold back then. So when No Starch Press approached me suggesting we should create a new book together based on 9 Circuits, I thought: ...
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Christmas is coming up in about a month. And it's time to build some Christmas things with electronics. So I just added a new course project to the Ohmify library: The Blinking Christmas Lights https://ohmify.com/courses/blinking-christmas-lights/ ...
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I cannot count how many times I've connected my battery to a freshly built circuit and… …nothing. In the last email I sent last week, my goal was to convince you to try and build the blinking light circuit. Here are the build instructions:https://www.build-electronic-circuits.com/build-blinking-light-circuit/ So, did you do it? ...
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I'm going to show you what negative voltage is by putting John into a hole. As you'll quickly learn, it's nothing weird or mystical. Meet John. He is 1.8 meters (6 feet) tall. What does it mean that John is 1.8 m tall? Could you find his height by only ...
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Today I got a question from Garry on the Ohmify community. [GARRY]: "When I measure the voltage of my 9V battery using my multimeter I get a reading of 9.06 when it is not connected to any circuit. When I hook the battery up to a simple circuit (i.e. 325 ...
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