RANCANG BANGUN ALAT PRAKTIKUM BANDUL FISIS MENGGUNAKAN SENSOR INFRARED BERBASIS WIFI MIKROKONTROLER NODEMCU ESP8266

YANI, RIZKA ANDRI and Saleh, Khairul and Supardi, Supardi (2022) RANCANG BANGUN ALAT PRAKTIKUM BANDUL FISIS MENGGUNAKAN SENSOR INFRARED BERBASIS WIFI MIKROKONTROLER NODEMCU ESP8266. Undergraduate thesis, Sriwijaya University.

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Abstract

Physical pendulum practicum data collection and processing are generally still done manually, so it takes a relatively long time and errors often occur which cause the low level of accuracy of the data obtained. Therefore, in this study, the development of a physical pendulum practicum tool based WiFi microcontroller nodeMCU esp8266 with an infrared sensor as a measuring pendulum period. The data obtained from the measurement of the pendulum period is set in seconds which will be directly sent by the WiFi microcontroller nodeMCU esp8266 to google spreadsheet so that it can be processed using the linear regression calculation method to get the value of the acceleration of gravity. The tool that has been designed has been tested using variations in angles of 20° and 30° with a distance from center of mass to rotation axis of the pendulum 0,05 m, 0,1 m, 0,15 m, 0,2 m, 0,25 m, 0,3m, 0,35 m, 0,4 m, 0,45 m and 0,5 m. Based on the data obtained from the measurement of the pendulum period, the tool is able to transmit data with a maximum distance of 70 m and has good accuracy with the value of the accuracy of 96,302%, precision of 97,076%, an error of 0,786%. The acceleration of gravity obtained (9,902±0,130) m/s^2 at an angle of 20° and (9,990 ±0,183) m/s^2 at an angle of 30°.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Physical Pendulum, Infrared Sensor, NodeMCU Esp8266, WiFi, Acceleration of Gravity.
Subjects:	Q Science > Q Science (General) > Q1-295 General
Divisions:	08-Faculty of Mathematics and Natural Science > 45201-Physics (S1)
Depositing User:	Rizka Andri Yani
Date Deposited:	02 Jun 2022 07:22
Last Modified:	02 Jun 2022 07:23
URI:	http://repository.unsri.ac.id/id/eprint/71360

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