Arduino ultrasonic sensor (HC-SR04 or HY-SRF05)
Both these ultrasonic range modules are fairly cheap modules, expect the HY-SRF05 to be the more expensive of the these two. At a quick glance there are only small differences between these two: HC-SR04 HY-SRF05 Working Voltage 5 VDC … Continue reading Arduino ultrasonic sensor (HC-SR04 or HY-SRF05)
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