555 Timer Projects

Articles Written 23

Quick Logic-Level MOSFET Tester

There is no doubt that nowadays we are seeing more logic-level MOSFETs being used in microcontroller-based hobby electronics circuits and projects. So this week’s little post is about building a quick go/no-go tester for the […]

Mini Alarm Loop v1

Mini Alarm Loop is a simple battery-powered security device to secure worthful goods outside of your home or office, such as bicycles, garden tools, furniture, etc. It sets off a sharp warning signal if severed […]

Little LED Marker Light DIY

Inspired by some commercial automotive side marker lights, I recently built a general purpose 3-LED flashing marker light. It can be used as an attention light in and around your home, especially at night. So, […]