Digital modulation has a lot to answer for. Although the spectral efficiency of communications systems has improved, many signals resulting from digital modulation have significant power variation. In ...

VFD displays are beloved for their eerie glow that sits somewhere just off what you’d call blue. [mircemk] used one of these displays to create an old-school VU meter that looks straight out of a ...

Fortunately, if you’ve ever needed to test the voltage on your USB-C devices, there is a tool for you. There are quite a few USB-C voltage meters on the market, including one from one of my favourite ...

The government should require power companies to provide clear visual displays when they install smart meters in homes, says a report. All houses are set to have ...

The project was based on a PIC16F877A microcontroller for the basic purpose of encouraging radio amateurs to build their own SWR meter at a very cheap price compared to high-priced ready made. Two ...

Smart meters installed by renewable-energy supplier Bulb have been showing customers incorrect figures for energy consumption due to a fault with their displays, MoneySavingExpert.com can reveal. Bulb ...

WHEN Lesley James checked her smart meter as usual one morning, she was surprised to see a blank screen staring back at her. She was no smart meter obsessive, but had got used to checking in on her ...

An audio volume-unit meter displays peak-related audio amplitudes to aid in accurately setting recording levels or for displaying an amplifier's operating conditions. A simple diode and capacitor ...

When it comes to educational electronic projects, it’s hard to go past building a clock. You learn tons about everything from circuit concepts and assembly skills to insights about the very nature of ...

These drivers are complaining in batches about the city's parking payment system that was installed last fall. They say its directions are ambiguous at best, and that there may be little incentive for ...