HIGHLIGHTS
- What: This research examined the motion of a body in free fall by periodically analysing it using the Arduino UNO and an ultrasonic distance sensor HC-SR04.. The research paper made by Widhalm et_al was published in 2021, where the authors focused on a study on how the chapter`s usual SBCs in conjunction with such standard shields and sensors can be used as the main building block elements of Internet of Things devices with sensing, controlling, and networking functionality. As a result, this research has important educational and technical implications. The study uses an illustrative technique . . .

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