This email contains a crucial piece of information. There's no need to waste time trying to understand how any circuit works before you get this: The amount of current flowing out of a battery is the same as the current flowing out of it. * ...
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As a kid, I tried to see the delay between me flipping the light-switch and the light turning on. "There must be a delay", I thought to myself. "Something has to travel from the switch to the light, right?" But no matter how hard I looked, I couldn't see any ...
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Yesterday I climbed the hill of three crosses. It's a popular hill in Medellin for doing a Sunday hike. Green and beautiful. When you get to the top, it's a great view of the city. Suddenly I'm seeing new things: "Oh, there's a golf course over there." ...
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I remember something I struggled with in the beginning. The LED. It's supposed to have a fixed voltage drop, right? Like 2V. But what if I force 3V across its legs with a 3V battery? ...
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After a crazy and fun New Year's Eve celebration in Cartagena, I'm now back in Medellin. If you're new to my newsletter, here's the quick summary: I'm in Colombia, building an Arduino robot. Video and updates here: https://www.build-electronic-circuits.com/club-de-arduino/ ...
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