Ultrasonic Sensor HC-SR04 (SEN-15569) This is the HC-SR04 ultrasonic ranging sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that ...

SparkFun Ultrasonic Distance Sensor - TCT40 Arduino Library for the SparkFun SparkFun Ultrasonic Distance Sensor The SparkFun Ultrasonic Distance Sensor - TCT40 (sen-24805) a user-friendly upgrade to ...

Parkinson’s Isn’t Just Bad Luck. Scientists Reveal It’s Largely Preventable—and the Culprit Is All Around Us Helen Mirren feels ‘insulted’ by ‘condescending’ comments from young ...

A new technique for the ultrasonic wind speed measurement is presented in this paper. This technique measures the start and end time for the received signal to be detected on a given threshold and ...

Human activity recognition is an important problem in health care, ambient-assisted living, surveillance-based security, etc. and has crucial applications in smart environment. A non-invasive, ...

Thus, they entered a heart rate sensor to our 2025 One Hertz Challenge! The build is based around a Wemos D1 mini, a ESP8266 development board.

Developed by the research team at the Helmholtz Institute for Renewable Energy Research in Erlangen-Nuremberg, Germany (HI ...

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