* Test how sensitive the ultrasonic sensor is to detect an object 22.11.2021

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recipe

The size of the circle changes according to the value of the ultrasonic sensor.

code for Processing

code for Arduino

code reference : https://youtu.be/_SMQDfQG0fU


result

https://youtu.be/DAx0qvoNnYY

The ultrasonic sensor does not recognize the falling leaves.