HC-SR04 Ultrasonic Distance Sensor Module 4-Pin for Arduino & Raspberry Pi
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20% off first order
$4.49
Color
Black
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Description
HC-SR04 Ultrasonic Distance Sensor is a compact 4-pin module that gives robots and projects the ability to "see" with sound. It uses echolocation, emitting high-frequency pulses and timing echoes to calculate distance, making it a reliable,...