An ultrasonic sensor is an instrument that measures the distance to an object using ultrasonic sound waves. An ultrasonic sensor uses a transducer to send and receive ultrasonic pulses that relay back information about an object’s proximity.
An ultrasonic sensor is an instrument that measures the distance to an object using ultrasonic sound waves. An ultrasonic sensor uses a transducer to send and receive ultrasonic pulses that relay back information about an object’s proximity.
A passive infrared sensor is an electronic sensor that measures infrared light radiating from objects in its field of view. They are most often used in […]
A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarisers. Liquid crystals […]
An infrared sensor (IR sensor) is a radiation-sensitive opto-electronic component with a spectral sensitivity in the infrared wavelength range 780 NM … 50 µm. IR sensors are now […]
A buzzer or beeper is an audio signalling device, which may be mechanical, electro-mechanical, or piezoelectric. Typical uses of buzzers and beepers include alarm devices, timers, train […]
A direct current (DC) motor is a type of electric machine that converts electrical energy into mechanical energy. DC motors take electrical power through direct current, and […]
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