Over the years, control relays of various types have been used by the hundreds — even thousands — to control nearly every function in commercial and industrial processes. Today, many of those ...

I would like to turn on my car's heated seats over a mobile/cellular network using my iPhone, and I'm trying to figure out the simplest path. I know very little beyond that goal, but I know that RF, ...

ESP-01 is a tiny and useful piece of hardware. It has a 32-bit MCU, 2.4GHz 802.11 b/g/n WiFi, 1MB flash memory, and several other useful embedded features. Such ...

When voltage sags occur inside or outside of a facility, properly placed power quality mitigation technology will save sensitive equipment from costly shutdowns. The cost of this mitigation equipment ...

It is very easy to build an “SMS-controlled relay” with the help of a cheap GSM modem module and a small microcontroller board. Here, I’m using the SIM800L and Arduino Nano V3 to develop a nifty ...

WENZHOU, ZHEJIANG, CHINA, January 5, 2026 /EINPresswire.com/ — In the world of electrical engineering, automation, and power management, the relay is the quiet workhorse. It’s the component ...

Kepler Communications and ESA signing the contract for Element #1 of HydRON-DS during a ceremony Oct. 16 at the International Astronautical Congress in Milan. Credit: ESA / P.Sebirot TAMPA, Fla. — The ...