Illustration of TDRS-13, the final satellite in NASA’s Tracking and Data Relay Satellite (TDRS) constellation, which has provided crucial connectivity for govern- ment users like the ISS and the U.S.

The demand for convenient and reliable switching systems is increasing across homes, offices, and industrial environments. Conventional methods, such as wired switches and infrared (IR) remotes, have ...

Maintained by Paul Kastelijn — last updated on 28 November 2025. This project provides a complete ESPHome configuration to build a smart Electric Vehicle Supply Equipment (EVSE) controller using a ...

How programmable RF filters offer user flexibility. The basic capabilities and setup requirements of this MMIC GHz-band filter How an evaluation board can simplify user comfort level and speed design ...

Hybrid relays are changing the way we think about switching inside electronic circuits. By combining the fast response of solid-state components with the reliability of mechanical contacts, these ...

Find Barry Blitt’s covers, cartoons, and more at the Condé Nast Store. The year’s most-liked gag drawings suggest that you, our readers, are really going through something. The Political Scene Podcast ...

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 ...

Over my almost 60 years in the auto repair industry as an ASE and GM Master Technician, and vocational education automotive technology instructor, I have seen firsthand how vehicles have evolved from ...

Spectrum Control's family of software-definable, RF+ sysetm blocks work with mixed-signal devices like Direct RF FPGAs (see figure). The latest incarnation provides high-fidelity millimeter-wave ...