...........ARDUINO CODE..........
int WATERPUMP = 13; //motor pump connected to pin 13
int sensor = 8; //sensor digital pin vonnected to pin 8
int val; //This variable stores the value received from Soil moisture sensor.
void setup() {
pinMode(13,OUTPUT); //Set pin 13 as OUTPUT pin
pinMode(8,INPUT); //Set pin 8 as input pin, to receive data from Soil moisture sensor.
//Initialize serial and wait for port to open:
Serial.begin(9600); // opens serial port, sets data rate to 9600 bps
while (! Serial);// wait for serial port to connect. Needed for native USB
Serial.println("Speed 0 to 255");
}
void loop()
{
if (Serial.available()) //loop to operate motor
{
int speed = Serial.parseInt(); // to read the number entered as text in the Serial Monitor
if (speed >= 0 && speed <= 255)
{
analogWrite(WATERPUMP, speed);// tuns on the motor at specified speed
}
}
val = digitalRead(8); //Read data from soil moisture sensor
if(val == LOW)
{
digitalWrite(13,HIGH); //if soil moisture sensor provides LOW value send LOW value to motor pump and motor pump goes off
}
else
{
digitalWrite(13,LOW); //if soil moisture sensor provides HIGH value send HIGH value to motor pump and motor pump get on
}
delay(400); //Wait for few second and then continue the loop.
}
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