In this video, I'm exploring the use of Mini PIR Sensors with ESP32 with both Arduino-based projects as well as making a movement sensor for Home Assistant by using ESPHome. The sensor is quite ...

There have been many questions about what direction Arduino would take after being bought by Qualcomm. Now it would seem that we’re getting a clearer picture. Perhaps unsurprisingly the answer appears ...

What's CODE SWITCH? It's the fearless conversations about race that you've been waiting for. Hosted by journalists of color, our podcast tackles the subject of race with empathy and humor. We explore ...

March 14, 2026 • It’s Alabama, 1963. A black woman stands before a judge, but she refuses to acknowledge his questions until he addresses her by the same honorific given to white women: “Miss.” That ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...

You can keep your floors clean without spending a lot of money. Check out the top cheap robot vacuums we've tested, all of which cost $300 or less. I'm PCMag's managing editor for consumer electronics ...