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 ...

If you’ve got an existing smart home rig, motion sensors can be a useful addition to your setup. You can use them for all ...

Leviton’s updated motion-sensing dimmer pulls out all the stops with wired (or wireless) 3-way circuit support and impressive customization options. With both dimming and motion sensing built in; plus ...

The opposition Congress on Wednesday announced to bring No Confidence Motion against the BJP-led state government during the upcoming monsoon session of the Odisha Assembly, scheduled to begin from ...

The circuit is simple, economical, and built using easily sourced, budget-friendly components. True to form, the onboard test ...

The T100 is quite small for a motion detector, and at just 42.3 x 42.3 x 34 mm it’s around half the size of the equivalent ...

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 ...

Abstract: Lower limb motion intent recognition is a crucial aspect of wearable robot control and human–machine collaboration. Among the various sensors used for this purpose, the electromyogram (EMG) ...

A new custom sensing solution enables precise, responsive, and context-aware motion tracking for smart glasses at an ultra-low-power consumption. That ensures high-accuracy head tracking, stable image ...

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 ...