<![CDATA[In this study, the application can be used so that consumers can find out the fat content and acidity in Barco oil, fish dorang, and bulk oil which has an android monitoring system in real-time. This research uses Arduino UNO and Node MCU as the microcontroller. Arduino Uno will later be assembled together with water pH modules, ultrasonic HC-SR04, and capacitive soil. The pH module functions to measure the water and fat content in palm oil. An ultrasonic module that functions to measure the volume of the oil measurement container. The capacitive module is used to determine the density of quality in saturated oil. The test results can be concluded that the pH sensor can detect levels of fat and acidity in palm oil has a value of about 5 to 11. Ultrasonic sensors on the volume of oil samples of Barco and fish dorang have a significantly increased grapH, while the bulk oil sample has a very high grapH which causes acidity oil. This study has the highest delay of 1.303525ms and the lowest delay of 0.628276ms. With an average value of delay obtained of 1.189657 ms.]]>
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