A reflective strip is placed on the motor shaft. Each time the strip passes the IR sensor → pulse generated. Arduino counts pulses for 1 second → converts to RPM.

Sony’s IMX775 5-MP RGB-IR image sensor with a 2.1-µm pixel size delivers high sensitivity and a high dynamic range.

Engine rpm is often equated to the heartbeat of an engine. If the rpm is too low, the engine shuts down, while very high rpm ...

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 ...

Abstract: In this report, we propose a quantum sensing architecture for high-voltage (HV) grid current measurement based on an integrated diamond quantum sensor (DQS). The DQS is installed in the HV ...

TechRadar had the opportunity to speak with Apple’s Steve Waydo, Director of Health Sensing, and Ron Huang, VP of Sensing and Connectivity, to delve deeper into the new heart-rate sensor: its ...

IoT-based farm security and monitoring system using Arduino, GSM, and IR sensors. This project implements a geofencing system for agriculture that detects intrusions (humans, animals, or unauthorized ...

The best Windows Hello webcams add something your PC may lack: a quick, secure way to log in to your PC without a password. Wouldn’t it be nice if your PC just recognized you instead? That’s where a ...

Abstract: We present an experimental method for performing direct, high-speed dynamic pressure measurements of MEMS-based sensors with bandwidths exceeding 1 MHz. A focused nanosecond-pulsed laser ...

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