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final_code_for_water_management.ino

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+/*
+  Serial Event example
+ 
+ When new serial data arrives, this sketch adds it to a String.
+ When a newline is received, the loop prints the string and 
+ clears it.
+ 
+ A good test for this is to try it with a GPS receiver 
+ that sends out NMEA 0183 sentences. 
+ 
+ Created 9 May 2011
+ by Tom Igoe
+ 
+ This example code is in the public domain.
+ 
+ http://www.arduino.cc/en/Tutorial/SerialEvent
+ 
+ */
+
+ /*
+  LiquidCrystal Library - Hello World
+ 
+ Demonstrates the use a 16x2 LCD display.  The LiquidCrystal
+ library works with all LCD displays that are compatible with the 
+ Hitachi HD44780 driver. There are many of them out there, and you
+ can usually tell them by the 16-pin interface.
+ 
+ This sketch prints "Hello World!" to the LCD
+ and shows the time.
+ 
+  The circuit:
+ * LCD RS pin to digital pin 12
+ * LCD Enable pin to digital pin 11
+ * LCD D4 pin to digital pin 5
+ * LCD D5 pin to digital pin 4
+ * LCD D6 pin to digital pin 3
+ * LCD D7 pin to digital pin 2
+ * LCD R/W pin to ground
+ * 10K resistor:
+ * ends to +5V and ground
+ * wiper to LCD VO pin (pin 3)
+ 
+ Library originally added 18 Apr 2008
+ by David A. Mellis
+ library modified 5 Jul 2009
+ by Limor Fried (http://www.ladyada.net)
+ example added 9 Jul 2009
+ by Tom Igoe
+ modified 22 Nov 2010
+ by Tom Igoe
+ 
+ This example code is in the public domain.
+
+ http://www.arduino.cc/en/Tutorial/LiquidCrystal
+ */
+
+// include the library code:
+#include <LiquidCrystal.h>
+
+#include <EEPROM.h>
+
+#include "PinChangeInterrupt.h"
+
+
+
+
+//const int analogInPin1 = A0;  // Analog input pin that the potentiometer is attached to
+
+
+unsigned int load = 0,gas=0;        // value read from the pot
+// initialize the library with the numbers of the interface pins
+LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
+
+
+/*const int analogInPin2 = A1;  // Analog input pin that the potentiometer is attached to
+
+const int analogInPin3 = A2;
+const int analogInPin4 = A3;
+const int analogInPin5 = A4;
+const int analogInPin6 = A5;
+*/
+
+
+const int valve1 = 6;
+const int valve2 = 7;
+
+#define flow1 8
+#define flow2 9
+
+
+
+
+
+char a[73];
+unsigned int m=0;
+unsigned char mm,tt=0,load_cell=0;
+
+
+
+unsigned int pulse1,pulse2,ph,lev1=0,ph1,ph2;
+
+boolean stringComplete = false;  // whether the string is complete
+boolean started=false;
+
+
+unsigned int sec=0;
+
+void received();
+
+
+void send_msg();
+
+
+void send_msg()
+{
+
+  unsigned int kk=0;
+
+   Serial.print('*');
+
+  if(ph1<= 9){Serial.print("00");Serial.print(ph1);}
+  else if(ph1 <= 99){Serial.print("0");Serial.print(ph1);}
+  else if(ph1 <= 999){Serial.print(ph1);} 
+
+  if(ph2<= 9){Serial.print("00");Serial.print(ph2);}
+  else if(ph2 <= 99){Serial.print("0");Serial.print(ph2);}
+  else if(ph2 <= 999){Serial.print(ph2);}
+
+
+  if(pulse1<= 9){Serial.print("00");Serial.print(pulse1);}
+  else if(pulse1 <= 99){Serial.print("0");Serial.print(pulse1);}
+  else if(pulse1 <= 999){Serial.print(pulse1);}
+
+   if(pulse2<= 9){Serial.print("00");Serial.print(pulse2);}
+  else if(pulse2 <= 99){Serial.print("0");Serial.print(pulse2);}
+  else if(pulse2 <= 999){Serial.print(pulse2);} 
+}
+
+void receive()
+{
+  unsigned int i=0;
+ if(m > 2)
+ {
+
+    if(a[1] == '1')
+    {
+       if(a[2] == 'N')
+       {
+         digitalWrite(valve1,LOW);
+       }
+       else if(a[2] == 'F')
+       {
+          digitalWrite(valve1,HIGH);
+       }
+    }
+    else if(a[1] == '2')
+    {
+       if(a[2] == 'N')
+       {
+         digitalWrite(valve2,LOW);
+       }
+       else if(a[2] == 'F')
+       {
+          digitalWrite(valve2,HIGH);
+       }
+    }
+    m =0;
+
+ }
+
+}
+
+void setup() {
+  // initialize serial:
+
+    // set up the LCD's number of columns and rows: 
+  lcd.begin(16, 2);
+  // Print a message to the LCD.
+  lcd.print("   ARDUINO BASED");
+
+  pinMode(1,INPUT_PULLUP);
+  pinMode(0,INPUT_PULLUP);
+
+   pinMode(A0,INPUT_PULLUP);
+  pinMode(A1,INPUT_PULLUP);
+  pinMode(A2,INPUT_PULLUP);
+
+  pinMode(valve1,OUTPUT);
+  pinMode(valve2,OUTPUT);
+
+
+  pinMode(flow1,INPUT_PULLUP);
+  pinMode(flow2,INPUT_PULLUP);
+
+
+
+
+  Serial.begin(9600);
+
+  delay(1000);
+  sec=170;
+
+
+    attachPCINT(digitalPinToPCINT(flow1),l1, CHANGE);
+    attachPCINT(digitalPinToPCINT(flow2),l2, CHANGE);
+
+    digitalWrite(valve1,HIGH);
+    digitalWrite(valve2,HIGH);
+
+
+    lcd.clear();
+   started=true;
+}
+
+
+void loop() {
+
+
+        ph1 =  analogRead(A0);
+         lcd.setCursor(0,0);
+         lcd.print("p1:");
+         lcd.print( ph1);
+
+          ph2 =  analogRead(A1);
+         lcd.setCursor(0,1);
+         lcd.print("p2:");
+         lcd.print( ph2);
+
+        receive();
+
+       /* if(m > 8)
+        {
+            for(int i =0;i<=9;i++)
+            {
+              lcd.setCursor(0+i,1);lcd.print(a[i]);
+              
+            }
+            m = 0;
+        }*/
+
+        if(ph1 < 60 || ph1 > 80){digitalWrite(valve1,HIGH);}
+        else{digitalWrite(valve1,LOW);}
+
+        if(ph2 < 60 || ph2 > 80){digitalWrite(valve2,HIGH);}
+        else{digitalWrite(valve2,LOW);}
+
+
+
+        lcd.setCursor(11,0);lcd.print(pulse1);
+
+        lcd.setCursor(11,1);lcd.print(pulse2);
+
+       sec++;
+       delay(300);
+       if(sec > 1)
+       {
+        sec = 0;
+          send_msg();
+        pulse1 = 0;
+        pulse2 = 0;
+       }
+
+
+}
+
+/*
+  SerialEvent occurs whenever a new data comes in the
+ hardware serial RX.  This routine is run between each
+ time loop() runs, so using delay inside loop can delay
+ response.  Multiple bytes of data may be available.
+ */
+void serialEvent() {
+  while (Serial.available()) {
+    // get the new byte:
+    char inChar;
+
+
+    //a[m] = (char)Serial.read(); 
+    inChar = (char)Serial.read(); 
+
+
+
+      a[m] = inChar;
+      if(a[0] == '*'){ if(m<=6){m++;}}
+
+
+  }
+}
+
+void l1(void) {
+     pulse1++; 
+}
+
+void l2(void) {
+  pulse2++;
+}
+
+
+
+
+
+
+