Rancang Bangun Alat Ukur pH dan Ketinggian Air pada Pipa Hidroponik Berbasis Arduino Uno

Abstract

Efforts to make an instrumentation system that can determine the pH and altitude of a water substance in a certain flow and container, a liquid level measuring instrument with a buzzer as an alarm is made using an Arduino Uno-based ultrasonic sensor. The design of this tool utilizes a pH sensor and ultrasonic sensor which will be controlled via Arduino Uno and uses a buzzer as an alarm indicator for pH and altitude in liquids. The buzzer will sound when the pH of the water is below the required pH value and will turn off when the pH value exceeds the required pH range for the hydroponic plant. The pH value of the water on hydroponic plants when it affects the development of the hydroponic plants itself. Test results can show a fairly good level of accuracy, the results of experiments when hydroponic water is in a pipe with a certain pH and height can be seen on the LCD.