HackMakeMod

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This little circuit solves a common problem in battery powered projects… how do you power something on with a button, but let the microcontroller shut itself off later? The button wakes the system up. Once the microcontroller boots, it latches its own power on using an opto-isolator and a transistor. After a period of inactivity, the firmware releases the latch and the circuit cuts power completely. The opto-isolator keeps the control side electrically isolated, which means the device draws essentially zero current when it’s off. Simple parts… clever behavior… and a really useful trick for battery powered builds. #electronics #circuitdesign #embedded #microcontroller #lowpowerdesign

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Link in Bio Axiometa Genesis Mini is one of the most interesting electronics platforms I’ve touched in years! The Axiometa Genesis Mini is a modular ESP32 system that lets you go from idea to working project in minutes… no breadboards, no wiring mess. Just plug in modules, describe what you want, and Axie AI builds it. Free VIBE CODING!! But the real story isn’t the hardware… it’s Axiometa Studio AI code generator. You type what you want… Axie AI writes the code… and you still get full access to everything. You can read it, change it, break it, fix it. It’s fast, but not a black box. That combination is rare. I liked this so much I invested in the company because Paul and his team actually remove the friction that stops most people from getting started in DIY electronics. #ESP32 #ESP32Projects #Electronics #DIYElectronics #AICoding

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Ever wondered what’s actually happening inside that clicky knob on your car stereo? It’s a rotary encoder!.. and it’s one of the most useful little components in electronics. In this video, we crack one open and show you how it works. You’ll learn the key difference between an encoder and a potentiometer, what’s spinning around inside, and the clever offset trick that lets your microcontroller figure out which direction you’re turning the knob and count every single step along the way. #RotaryEncoder #Electronics #Arduino #Microcontroller