In auto mode When the water level is very low the water pump will automatically ... Here I used this microcontroller IC instead of Arduino Uno to save some space. An ultrasonic sensor is an electronic ...

Now we will add 3 LEDs Showing 3 stages of the Water level as Low, Medium, and High respectively. First Lets discuss the Circuit Diagram. Arduino Water Level Sensor with 3 LEDs as output – Circuit ...

The Arduino Uno should then be plugged in, and the source code uploaded. Fig. 2 shows a snippet of the source code. Fig. 2: Snippet of source code Fig. 3 shows the circuit diagram of the automatic ...

This is a simple arduino ... plant needs water. Adjust the potentiometer and see the point at which it starts to light. Measure the potentiomenter current value and replace it with a fixed resistor. I ...

and relay status LED will turn OFF. As shown in the water level controller circuit given below, Ultrasonic sensor module’s “trigger” and “echo” pins are directly connected to pin 10 and 11 of arduino.