| Raspberry Pi fans have long wished for a power button, and the Raspberry Pi 5 finally delivers. But what if you have an older model? This DI...
| Raspberry Pi fans have long wished for a power button, and the Raspberry Pi 5 finally delivers. But what if you have an older model? This DI...
| The fingerprint-readout function is widely used in high-tech devices such as notebooks, advanced keyboards, and automated access control, bu...
| To operate at its best, a turntable must be placed in a perfectly horizontal position and spin at the correct speed. The Raspberry Pi Pico-b...
| This secure, AVR microcontroller-based Combination Access Switch allows you to control electrical loads or other circuits by entering a (sec...
| A residual charge indicator provides a useful visual indication of battery charge status. Here, you can build one using just a simple “tiny”...
| The goal of this project was not simply to connect a mouse to an MCU, but to create a sort of generic interface that could directly replace...
| Many motorists have used a parking disk. This project presents a digital version based on an e-Paper display. The design has special feature...
| 18650-type Li-ion batteries are a great source of energy, but if you need a voltage higher than, say, 3.6 to 3.7 V (the nominal voltage of a...
| With this circuit featuring a single ATtiny85 microcontroller, you can simultaneously obtain three square waves of different, user-defined f...
| Need to turn on a device by placing an object on a surface? This low-power IR switch can do the trick.