Discover how you can build a professional digital multimeter using Arduino that measures up to 24V DC voltage, checks resistance, conducts diode testing, and performs continuity tests. This ...

Diodes are essential components found in electronic circuits. They allow current to flow in one direction while blocking it in the other. With time and usage, diodes can become defective, leading to ...

We have all had difficulty testing diodes in-circuit. Most DMM’s have a diode Vf function that measures forward drop, but what is the normal voltage drop? Analog VOM’s attempt to measure resistance of ...

A multimeter is a handheld digital or analog device used to measure electrical voltage, current, and resistance. It is an essential tool for anyone working with electronics and is commonly used to ...

This small project explores how a simple diode rectifier can turn an AC signal into a DC voltage — and how adding a capacitor filter can smooth out the ripple. I started with a basic single-diode ...