plant_reader.proj

//The Plant Reader
/*
Created by River Alexander
This project shows what your plant is "thinking" (ex. "I need water" or "I need more sunlight") then prints it to an LCD screen. 
This project uses:
(1)RGB Common Cathode LED
(1)Parallax 16x2 LCD Screen
(1)Moisture Sensor
(1)Photocell
(1)Humidity/Temperature Sensor
(1)Water pump
(1)Button
(1)Arduino MEGA or Uno
*/

const int waterPumpPin = 7;
const int buttonPin = 6;
const int lcdPin = 5;
const int redPin = 4, red = 4;
const int greenPin = 3, green = 3;
const int bluePin = 2, blue = 2;
const int moistureSensorPin = A1;
const float tempSensorPin = A2;
const float lightSensorPin = A3;

#include <SoftwareSerial.h>
SoftwareSerial LCD = SoftwareSerial(255, lcdPin);
#include <JeeLib.h>
ISR(WDT_vect)
{
Sleepy::watchdogEvent();
}

int buttonState = 0;

void setup()
{
pinMode(moistureSensorPin, INPUT);
pinMode(tempSensorPin, INPUT);
pinMode(lightSensorPin, INPUT);
  pinMode(buttonPin, INPUT);
  pinMode(waterPumpPin, OUTPUT);
pinMode(lcdPin, OUTPUT);
pinMode(redPin, OUTPUT);
pinMode(greenPin, OUTPUT);
pinMode(bluePin, OUTPUT);
pinMode(lcdPin, HIGH);
LCD.begin(9600);
delay(5);
LCD.write(17);
}

void loop()
{
int moistureRead = analogRead(moistureSensorPin);
float lightRead = analogRead(lightSensorPin);
  buttonState = digitalRead(buttonPin);
float voltage = analogRead(tempSensorPin) * 0.004882814;
float degreesC = (voltage - 0.5) * 100.0;
float degreesF = degreesC * (9.0/5.0) + 32.0;

if (buttonState == HIGH)
{
digitalWrite(waterPumpPin, HIGH);
}
else
{
digitalWrite(waterPumpPin, LOW);
}
if (moistureRead > 999)
{
moistureSensorDisconnected();
}
else if (moistureRead < 1000 && moistureRead > 599)
{
needWater();
}
else if (moistureRead < 600 && moistureRead > 369)
{
alreadyWatered();
}
else 
{
overWatered();
}
if (degreesF < 32.1)
{
Sleepy::loseSomeTime(5000);
needWarmth();
}
if (lightRead < 949.9)
{
Sleepy::loseSomeTime(5000);
needSunlight();
}
Sleepy::loseSomeTime(10000);
}

void setColor(int red, int green, int blue) 
{
  #ifdef COMMON_ANODE
    red = 255 - red;
    green = 255 - green;
    blue = 255 - blue;
  #endif
  analogWrite(redPin, red);
  analogWrite(greenPin, green);
  analogWrite(bluePin, blue);  
}

void clearLCD()
{
LCD.write(12);
delay(5);
}

void moistureSensorDisconnected()
{
clearLCD();
LCD.print("Sensor is") + LCD.write(13) + ("disconnected");
LCD.write(212);
LCD.write(220);
digitalWrite(redPin, HIGH);
delay(1000);
digitalWrite(redPin, LOW);
}

void needWater()
{
clearLCD();
LCD.print("Plant: I'm") + LCD.write(13) + ("thirsty.");
setColor(255, 0, 0);
}

void alreadyWatered()
{
clearLCD();
LCD.print("Plant: I'm good.");
setColor(0, 255, 0);
}

void overWatered()
{
clearLCD();
LCD.print("Plant: AHHH!") + LCD.write(13) + ("I'm drowning!!");
setColor(0, 0, 255);
}

float getyVoltage(int pin)
{
return (analogRead(tempSensorPin) * 0.004882814);
}

void needWarmth()
{
clearLCD();
LCD.print("Plant: I'm too") + LCD.write(13) + ("cold.");
setColor(80, 0, 80);
}

void needSunlight()
{
clearLCD();
LCD.print("Plant: I need") + LCD.write(13) + ("more sunlight.");
setColor(255, 255, 0);
}