An automatic toll gate system using Arduino revolutionises traditional toll collection by eliminating manual intervention.

I've been on a mission to unify all my smart devices under one app, and as someone who's running most of his smart devices with ESP32s, the toaster seemed like the next logical step. After all, all I ...

Elecrow “All-in-One Starter Kit for ESP32-P4” is an open-source learning and prototyping platform based on the ESP32-P4 ...

This article explains an upgraded smart solid-state AC switch system that uses microwave Doppler radar instead of traditional PIR sensors.

LAWRENCE, Kan. — With the 2020 Kansas Relays canceled due to COVID-19, we dug back into the archives to bring out some of the best history of the prestigious Kansas Relays. We start with the Kansas ...

Well-known industry author and instructor Jim Johnson is offering a new video for technicians who want to sharpen their troubleshooting skills. "This HVAC training video program, is available in DVD ...

One part wants 3.3V logic. Another wants 5V. What do you do? Over on the [Playduino] YouTube channel, there’s a recent video running us through a not-so-recent concern: various approaches to ...

Fossil fuels have been consumed rapidly over recent decades, and their availability is decreasing. Because of this, there is a growing focus on renewable energy sources. Solar energy is one of the ...

Abstract: This article presented a new hybrid circuit breaker solution for using in dc microgrids. The proposed solution can offer a high-reliability protection feature for the dc microgrid with low ...

Field-effect transistors (FETs) have been used as switches, particularly for analog signals, since the 1950s. In the early days of analog sampling, it was discovered that such devices exhibit an input ...

OpenHPSDR P.A. Antenna switch board by LA2NI (Munin 400/Aries system) This relay board is part of a set consisting of a 400 W LDMos based RF power amplifier (Munin 400), a medium power (600 or 1500 W) ...