This project uses an HC-SR04 ultrasonic sensor to measure how close an object is. A buzzer and LED react depending on the distance, similar to a car parking sensor. < 10 cm → buzzer and LED stay on.

To arm the system, all you need to do is turn on your automation under the Settings > Automations and scenes menu via the “Automations” tab. To disable it, just turn it off. To stop the alarm once ...

Leviton's excellent 2nd-gen motion-sensing Wi-Fi smart dimmer (model D2MSD) can be combined with a wireless, battery-powered companion dimmer.

Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. Although autumn has found its way across the country, many of us are ...

You can now buy TCL’s new QM9K series QD-Mini LED TVs, and they run Google TV, are the first to come with Gemini AI, and have a built-in mmWave presence sensor, as reported by 9to5Google. The TVs ...

WASHINGTON—Senate Republicans voted down a measure to release more material related to convicted sex offender Jeffrey Epstein, staying mostly united in blocking an effort led by Senate Minority Leader ...

Top lawmakers, influential Indian American business leaders, and former U.S. diplomats on Wednesday (September 10, 2025) warned that President Donald Trump’s trade war with India and his ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› by Rachel Cericola A smart doorbell camera allows you to see who’s on the other ...

CNET staff -- not advertisers, partners or business interests -- determine how we review products and services. If you buy through our links, we may earn a commission. Video doorbells are much more ...

Shopping for the best TV can be daunting. TVs often look the same, sound the same, cost the same amount and have names that sound like a string of random numbers and letters. Learning more about TVs ...

Abstract: Multitap complementary metal–oxide–semiconductor (CMOS) image sensors offer the capability of programmable exposure patterns. This article proposes a method to extend the dynamic range (DR) ...