| 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...
More about Circuit Special 2024 (27)
| 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...
| Power banks often shut down when connected to low-current devices. This project offers a solution using a microcontroller (module) to keep t...
| 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...
| The fingerprint-readout function is widely used in high-tech devices such as notebooks, advanced keyboards, and automated access control, bu...
| DC-DC converters can be very useful on your workbench. These circuits can generate different regulated voltage outputs, from the input volta...
| This microcontroller-based relay circuit is capable of activating devices remotely after a delay up to 255 years. The solution is ideal for...
| 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...
| Audio measuring devices usually have an input level range in which they work optimally and generate only little harmonic distortion themselv...
| Ever found yourself in the middle of a project only to realize you don't have the right equipment? That’s exactly where I was — needing...