Smart Water Level Indicator with Dry Protection Based on Ultrasonic Sensor Water indicator, Dry protection, Ultrasonic

contributing to the rate of water waste is overflow from overhead tanks. A crucial component that lessens human intervention in preventing such circumstances is the use of an automatic water level control mechanism. In this research, we suggest an intelligent system to regulate the water level and the process of turning on and off. The water level is detected by this method using an ultrasonic sensor and an Arduino. The water level is calculated in percentage based on the sound the water makes, and the result is displayed on the LCD screen. The water level is computed up to 100%. The relay switch attached to this system will automatically turn on and off when the water level exceeds the preset algorithmic value, which is then displayed on the LCD screen. When the water level falls to 0%, it will activate automatically, and once it reaches 100%, it will switch off. Additionally, we will observe that the pump will not operate in the absence of a water source to fill the tank since air will enter the pump and cause damage if it runs without water. Under these circumstances, the LCD panel will display the words "dry protection," which refers to the condition. Given that it would make it simpler for the user to fill the tank without assistance, the results showed that the automatic water level control device employing ultrasonic technology was effective based on readings that were practically monitored during the project's operation.