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The Ultrasonic Distance Sensor HC-SR04In order to measure the distance of the colored paper sheet from the sensors we use the HC-SR04![]() ![]()
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> > | These are the connection we make:
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Here is a Python test program demonstrating the readout:
https://iotworkshop.africa/pub/AFNOG/Ultra-sonicSensor/hc-sr04.py.txt
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