| The popular ESP8266 and ESP32 development boards will not run for long from a single Li-ion cell. The on-board regulator is the problem and...
All items tagged with Circuits & Circuit Design and Circuit Special 2024 (26)
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| Moo boxes have stood the test of time. Let’s make one! This article details a DIY project using an ATtiny85 microcontroller and minimal hard...
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| If you need to connect an audio device featuring a single-ended output to a differential input, you may use this impedance adapter that will...
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| The fingerprint-readout function is widely used in high-tech devices such as notebooks, advanced keyboards, and automated access control, bu...
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| In an electronics laboratory, it can be useful to have a current protection circuit on hand when using a power supply that lacks one. In thi...
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| DC-DC converters can be very useful on your workbench. These circuits can generate different regulated voltage outputs, from the input volta...
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| This microcontroller-based relay circuit is capable of activating devices remotely after a delay up to 255 years. The solution is ideal for...
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| Need a project to solve the problem of remotely monitoring a water heater with a simple circuit? This design uses a current sensor, a transi...
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| Audio measuring devices usually have an input level range in which they work optimally and generate only little harmonic distortion themselv...
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| In the EU and California, USB-C power adapters are now mandatory for cell phones and many other portable devices. So if you need some power...