Sihotang, Hajijah Yusra (2022) Rancang Bangun Alat Ukur Multifungsi 5 IN 1 (Altimeter, TDS Meter, Soil Moisture Meter, Thermometer, Barometer) Digital Portable Berbasis Arduino Nano. Diploma thesis, Politeknik Negeri Bengkalis.
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Abstract
Technological advances in instrumentationare developing at a rapid pace. Various types of technology have been created to make it easier for humans to do their work. As one of the technologies that develop is technology in the field of measurement. Therefore, inthe design of a multifunctional measuring instrument 5 IN 1 (Altimeter, TDSMeter, Soil Moisture Meter, Thermometer, and Barometer)digitalportable. This tool dapat measure height, solids at the volume of water, ground pressure, temperature and air pressure in one multifunctional measuring instrument. This measuring instrument will be designed using the BMP280sensor, TDS sensor, and Soil Moisture sensor based on Arduino Nano. The tool works automatically responding to how much of the measurement value is detected by the sensor used. Arduino Nano then processes and delivers a pre-programmed output. The results of this measurement are then displayed on the LCD. Based on the test results, the difference between the value of the measuring instrument made is close to the value of the standard measuring instrument so that the level of accuracy of the readings of each sensor is obtained to function properly and accurately. In the measurement of the BMP280sensor, the average test error1 Altimeter 0.85% Barometer 0.018% Thermometer 2.95% was obtained. testing2Altimeter 1.6% Barometer 0.038% Thermometer 3.2% and testing3 Altimeter 0.88%, Barometer 0.019% Thermometer 1.58%. The results of the comparison of the TDS sensor with the TDS meter obtained an average error of 5.14% and in Soil Moisture sensor tests, an average error of 2.84% was obtained.
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