IoT Based Water Level Control System

Nowadays, almost all communication using the
internet, but is not all, now object also can communicating each
other, this concept is calls the Internet of Things (IoT). Things
in IoT can be everything that we use every day. In this project,
the thing is a water container, or in Indonesia, it called ”bak
mandi. Why water container? Because, after we use water in
the water container usually the level of the water container is
reduced and we must fill it up for other people that use the water
container. Generally, in the process of filling the water
container, we forgot to close the valve or pump so water is
overflowing and the water is wasted. That is why we propose to
use the Internet of Things concept that can solve the problem.
Our approach utilizes a controller of ESP8266 that can provide
monitoring level of the water container. That controller will
open and close the pump or valve automatically so that the water
is not overflowing and wasted. We use an ultrasonic sensor to
sense the level of the water. We utilize the Blynk IoT service
incorporated with PHP web programming in providing water
level monitoring and control. We have tested the system on a 64
cm water container. The system has an error of 2 cm in
controlling the water level.