Build Your Own Coffee Roaster shows how to create a DIY coffee roaster using a Raspberry Pi, standard components, and ...

This looks like one of those projects that started out as a glimmer of an idea and led down a rabbit hole. But it’s a pretty cool rabbit hole that leads to homebrew neon seven-segment displays on a ...

Understanding your HVAC’s unique language of sounds is a crucial part of this shift toward preventative care. In a climate where air conditioning is a non-negotiable necessity, ignoring these auditory ...

When a car's air conditioning system fails, the driving experience can suffer significantly, especially during the hot m ...

When your car air conditioning blows hot air, the system is failing at one of three jobs: moving refrigerant, shedding heat, ...

A circuit breaker that trips repeatedly is often assumed to be defective, but that assumption is frequently wrong. Breakers respond to conditions downstream, and replacing one without understanding ...

Overcurrent relays with inverse definite minimum time (IDMT) characteristics are widely used in power systems to protect ...

Abstract: Electromechanical relays and contactors suffer from strong collisions at the end of the switching operations. This causes several undesirable phenomena, such as clicking, mechanical wear, ...

Most electromagnetic actuators are rotating motors, or some variation on the theme, like servos. However, it’s possible to do linear actuation with electomagnetics, too. [Adrian Perez] demonstrates ...