A smart water level indicator using an HC-SR04 Ultrasonic Sensor that can measure the level of the water inside the tanks and display it on the screen and LEDs for the user, with different alarms for each level.
It also has the ability to control the operation of a pump to start it when the water level reaches a predefined level.
And it has a manual operating mode to start/stop the pump.
Components:
Arduino Uno.
HC-SR04 Ultrasonic Sensor module.
LCD Display.
Rotary Encoder.
Relay.
Buzzer.
Motor Pump.
Passive components like Resistors, Switches, Capacitors, and LEDs.
