The researcher obtained the materials needed from 3M Electonics and Gaisano Grandmall in Basak, Lapu-Lapu City, from Alfonso Hardware in Poblacion Lapu-Lapu City and from the house of the researcher, located at Pajac, Lapu-Lapu City, recycled materials were obtained and used for the project
2x HC-SR04 Ultrasonic Sensor
The HC-SR04 Ultrasonic Sensor utilized sonar to determine distance to an object. It provides non-contact range detection and is accurate together with ultrasonic transmitter and receiver module. Two (2) ultrasonic sensors were used in the system to (a) detect solid wastes at the drainage and (b) determine the water level inside the tank.