China’s latest 6G experiment turns a classic vulnerability of stealth aircraft into an asset, capturing hostile radar pulses and feeding them back into the jet as usable electrical power. Instead of ...

WiFIRCard is a credit card-sized ESP32-S3 board designed for home automation with two relays and a few GPIOs (headers and screw terminals) that can be controlled over WiFi 4 or an IR (infrared) remote ...

There aren’t many new van or car models on the road that can trace their roots back nearly 20 years, but the Citroen Relay is one of them. It’s the product of a philosophy that “if it ain’t broke, don ...

Abstract: In this paper, a new relay algorithm is proposed for under-voltage load shedding (UVLS) based on rate of voltage recovery and predicted time to recover above a preset voltage threshold.

“M5Stamp PLC Controller with M5StampS3” or just “M5Stack StamPLC” is a programmable logic controller (PLC) based on the StampS3A ESP32-S3 wireless module and offering 8 opto-isolated digital inputs, 4 ...

Key Button: clock, timer, day, h+(setting the hours), m+(setting the minutes), manual override, reset. Advanced pre-setting one week before. Digital electronic time switch with daily programs. Repeat ...