For switching high-powered loads from a microcontroller, or for switching AC loads in general, most of us will reach into the parts bin and pull out a generic relay of some sort. Relays are ...

GoLink Advisory Group is looking to run a trial of a new high-speed railfreight operation designed specifically for the courier, express, parcel (CEP) sector. The operation is planned to use trains ...

In 2006, Harley-Davidson (H-D) made one of its most pivotal mechanical updates in years. It was a shift (pun intended) that saw H-D move from a five-speed to a six-speed transmission, introduced with ...

You can still find some cost-effective graphics cards (GPUs), but with cards like the NVIDIA RTX 5090 retailing for over $2,000 at the high end, it's clear that prices have risen overall. Between ...

Let’s get one thing straight: the Razer Wolverine V3 Pro isn’t trying to be your cozy couch controller. It’s not here for narrative strolls or casual platformers. This thing is a precision ...

A modular PIC16F887-based embedded system that controls a wall fan with IR remote support, push-button input, visual LED indicators, PWM buzzer, and TRIAC-based speed/swing control.

Battling heat with air conditioning can get expensive quickly, but there are ways to save on those costs thanks to some clever DIY ideas. In the video, she explained she has an AC unit in her bedroom, ...

John Carlsen has more than a decade of experience testing and reviewing home tech products, with a major focus on smart home security. He earned his BS in journalism from Utah Valley University. In ...

Abstract: This paper "Speed Control of AC Motors Using Touch Screen with Overheat Protection" aims to develop a comprehensive system for controlling the speed of AC motors through a user-friendly ...

Do you have any information, including a wiring diagram, that can help me wire my Lionel No. 450 Operating Signal Bridge using AC relays? Thanks! — Fred Richmond The Lionel No. 450 Operating Signal ...