Arduino Automatic Smart Plant Watering Kit 2.0

#include <Wire.h>
#include "U8glib.h"
U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_NONE);    // I2C
#include "Wire.h"
#include "RTClib.h"
RTC_DS1307 RTC;

// set all moisture sensors PIN ID
int moisture1 = A0;
int moisture2 = A1;
int moisture3 = A2;
int moisture4 = A3;

// declare moisture values
int moisture1_value = 0 ;
int moisture2_value = 0;
int moisture3_value = 0;
int moisture4_value = 0;

// set water relays
int relay1 = 6;
int relay2 = 8;
int relay3 = 9;
int relay4 = 10;

// set water pump
int pump = 4;

// set button
int button = 12;

//pump state    1:open   0:close
int pump_state_flag = 0;

//relay1 state    1:open   0:close
int relay1_state_flag = 0;

//relay2 state   1:open   0:close
int relay2_state_flag = 0;

//relay3 state  1:open   0:close
int relay3_state_flag = 0;

//relay4 state   1:open   0:close
int relay4_state_flag = 0;

static unsigned long currentMillis_send = 0;
static unsigned long  Lasttime_send = 0;

char daysOfTheWeek[7][12] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat",};
unsigned long nowtime;
unsigned long endtime;
unsigned long nowtimeNext;
unsigned long nowtime1;
unsigned long endtime1;
unsigned long nowtimeNext1;
unsigned long nowtime2;
unsigned long endtime2;
unsigned long nowtimeNext2;
unsigned long nowtime3;
unsigned long endtime3;
unsigned long nowtimeNext3;


// good flower
unsigned char bitmap_good[] U8G_PROGMEM = {

  0x00, 0x42, 0x4C, 0x00, 0x00, 0xE6, 0x6E, 0x00, 0x00, 0xAE, 0x7B, 0x00, 0x00, 0x3A, 0x51, 0x00,
  0x00, 0x12, 0x40, 0x00, 0x00, 0x02, 0x40, 0x00, 0x00, 0x06, 0x40, 0x00, 0x00, 0x06, 0x40, 0x00,
  0x00, 0x04, 0x60, 0x00, 0x00, 0x0C, 0x20, 0x00, 0x00, 0x08, 0x30, 0x00, 0x00, 0x18, 0x18, 0x00,
  0x00, 0xE0, 0x0F, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00,
  0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x02, 0xC1, 0x00, 0x00, 0x0E, 0x61, 0x00,
  0x00, 0x1C, 0x79, 0x00, 0x00, 0x34, 0x29, 0x00, 0x00, 0x28, 0x35, 0x00, 0x00, 0x48, 0x17, 0x00,
  0x00, 0xD8, 0x1B, 0x00, 0x00, 0x90, 0x1B, 0x00, 0x00, 0xB0, 0x09, 0x00, 0x00, 0xA0, 0x05, 0x00,
  0x00, 0xE0, 0x07, 0x00, 0x00, 0xC0, 0x03, 0x00
};

// bad flower
unsigned char bitmap_bad[] U8G_PROGMEM = {
  0x00, 0x80, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0xE0, 0x0D, 0x00, 0x00, 0xA0, 0x0F, 0x00,
  0x00, 0x20, 0x69, 0x00, 0x00, 0x10, 0x78, 0x02, 0x00, 0x10, 0xC0, 0x03, 0x00, 0x10, 0xC0, 0x03,
  0x00, 0x10, 0x00, 0x01, 0x00, 0x10, 0x80, 0x00, 0x00, 0x10, 0xC0, 0x00, 0x00, 0x30, 0x60, 0x00,
  0x00, 0x60, 0x30, 0x00, 0x00, 0xC0, 0x1F, 0x00, 0x00, 0x60, 0x07, 0x00, 0x00, 0x60, 0x00, 0x00,
  0x00, 0x60, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
  0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0xC7, 0x1C, 0x00,
  0x80, 0x68, 0x66, 0x00, 0xC0, 0x33, 0x7B, 0x00, 0x40, 0xB6, 0x4D, 0x00, 0x00, 0xE8, 0x06, 0x00,
  0x00, 0xF0, 0x03, 0x00, 0x00, 0xE0, 0x00, 0x00
};

 //  Logo
unsigned char bitmap_logo[] U8G_PROGMEM ={
   0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00,
   0x18, 0x00, 0x00, 0x03, 0x0e, 0x00, 0xf8, 0xff, 0xc3, 0x00, 0x07, 0x0c,
   0x00, 0x00, 0x00, 0x18, 0x00, 0x80, 0x03, 0x0e, 0x30, 0xfc, 0xff, 0xc1,
   0x00, 0x07, 0x0e, 0x00, 0x00, 0x00, 0x1c, 0x00, 0x80, 0x03, 0x0e, 0x30,
   0x80, 0x03, 0xe0, 0x00, 0x07, 0x0e, 0x00, 0x00, 0x00, 0x1c, 0x00, 0x80,
   0x03, 0x06, 0x38, 0x80, 0x01, 0xe0, 0x00, 0x07, 0x0e, 0x00, 0x00, 0x00,
   0x1c, 0x00, 0x80, 0x01, 0x07, 0x38, 0xc0, 0x01, 0x60, 0x00, 0x07, 0x06,
   0x00, 0x00, 0x00, 0x1c, 0x00, 0x80, 0x01, 0x07, 0x3c, 0xc0, 0x01, 0x70,
   0x00, 0x07, 0x06, 0x00, 0x00, 0x03, 0x1c, 0x00, 0x80, 0x01, 0x03, 0x1c,
   0xc0, 0x00, 0x30, 0x00, 0x07, 0x06, 0x08, 0x80, 0x02, 0x0c, 0x00, 0xc0,
   0x01, 0x03, 0x1e, 0xc0, 0x00, 0x30, 0x80, 0x07, 0x07, 0x00, 0x40, 0x00,
   0x0c, 0x00, 0xc0, 0x81, 0x03, 0x1e, 0xe0, 0x00, 0x30, 0x80, 0x03, 0x07,
   0x00, 0x40, 0x00, 0x0c, 0x00, 0xc0, 0x81, 0x03, 0x1f, 0xe0, 0x00, 0x30,
   0xe0, 0x03, 0x07, 0x04, 0x40, 0x70, 0x0e, 0x00, 0xc0, 0x80, 0x83, 0x1b,
   0xe0, 0x00, 0x30, 0xf0, 0x03, 0x03, 0x24, 0x43, 0x88, 0x0e, 0x00, 0xc0,
   0x80, 0xc3, 0x19, 0xe0, 0x40, 0x30, 0x3c, 0x03, 0x03, 0xa4, 0xc4, 0x84,
   0x0e, 0xe0, 0xc7, 0x80, 0xe3, 0x18, 0xe0, 0x60, 0xf0, 0x1f, 0x03, 0x03,
   0xa4, 0x44, 0x84, 0xfe, 0xff, 0xc7, 0x00, 0x7f, 0x38, 0xe0, 0x78, 0xf0,
   0x87, 0x03, 0x03, 0x64, 0x44, 0x44, 0xff, 0xff, 0xc3, 0x00, 0x3f, 0x78,
   0xe0, 0x3f, 0xe0, 0x81, 0x03, 0x43, 0x24, 0x68, 0x38, 0x7f, 0x00, 0xc0,
   0x00, 0x0e, 0x70, 0xc0, 0x0f, 0x00, 0x80, 0x01, 0x03, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x01, 0x02,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0xc0, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0xc0, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xe0, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0c,
   0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x1c, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0x1f, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
   0x07, 0x00, 0x00, 0x00, 0x00, 0x00
};

unsigned char bitmap_T[] U8G_PROGMEM = {
  0xF7, 0x01, 0x1D, 0x03, 0x0B, 0x02, 0x0C, 0x02, 0x0C, 0x00, 0x0C, 0x00, 0x0C, 0x00, 0x08, 0x02,
  0x18, 0x03, 0xF0, 0x01
};

unsigned char bitmap_H[] U8G_PROGMEM = {
  0x00, 0x00, 0x80, 0x01, 0xC0, 0x03, 0xE0, 0x07, 0xF0, 0x0F, 0xF8, 0x1F, 0xF8, 0x1F, 0xFC, 0x3F,
  0xFC, 0x3F, 0xFE, 0x7F, 0xEE, 0x7F, 0xB3, 0xF7, 0xBB, 0xFB, 0xBB, 0xFD, 0xBB, 0xFD, 0xC7, 0xFE,
  0x7F, 0xC3, 0x3F, 0xDD, 0xBF, 0xFD, 0xDF, 0xDD, 0xEE, 0x5B, 0xFE, 0x7F, 0xFC, 0x3F, 0xF8, 0x1F,
  0xE0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};


void setup()
{

  Wire.begin();
  RTC.begin();
  Serial.begin(9600);
  // declare relay as output
  pinMode(relay1, OUTPUT);
  pinMode(relay2, OUTPUT);
  pinMode(relay3, OUTPUT);
  pinMode(relay4, OUTPUT);
  // declare pump as output
  pinMode(pump, OUTPUT);
  // declare switch as input
  pinMode(button, INPUT);
  //pinMode(ROTARY_ANGLE_SENSOR, INPUT);
  // water_flower();
    u8g.firstPage();
    do
    {
      draw_ad();
    } while ( u8g.nextPage() );
    delay(1000);
}

void loop()
{

  // read the value from the moisture sensors:
  read_value();
  water_flower();
  int button_state = digitalRead(button);
  if (button_state == 1)
  {
    //read_value();
    u8g.firstPage();
    do
    {
      drawTH();
      drawflower();
    } while ( u8g.nextPage() );
    delay(500);
  }
  else
  {
    u8g.firstPage();
    do
    {
      drawtime();
      u8g.drawStr(18, 55 , "liutyi.info");
    } while (u8g.nextPage());
    delay(500);
  }
}

//Set moisture value
void read_value()
{
  float value1 = analogRead(A0);
  moisture1_value = (value1 * 120) / 1023; delay(20);
  float value2 = analogRead(A1);
  moisture2_value = (value2 * 120) / 1023; delay(20);
  float value3 = analogRead(A2);
  moisture3_value = (value3 * 120) / 1023; delay(20);
  float value4 = analogRead(A3);
  moisture4_value = (value4 * 120) / 1023; delay(20);
}

void water_flower()
{
  if (moisture1_value < 30)
  {
    digitalWrite(relay1, HIGH);
    relay1_state_flag = 1;
    delay(50);
    if (pump_state_flag == 0)
    {
      digitalWrite(pump, HIGH);
      pump_state_flag = 1;
      delay(50);
    }
  }
  else if (moisture1_value > 55)
  {
    digitalWrite(relay1, LOW);
    relay1_state_flag = 0;
    delay(50);
    if ((relay1_state_flag == 0) && (relay2_state_flag == 0) && (relay3_state_flag == 0) && (relay4_state_flag == 0))
    {
      digitalWrite(pump, LOW);
      pump_state_flag = 0;
      delay(50);
    }
  }

  if (moisture2_value < 30)
  {
    digitalWrite(relay2, HIGH);
    relay2_state_flag = 1;
    delay(50);
    if (pump_state_flag == 0)
    {
      digitalWrite(pump, HIGH);
      pump_state_flag = 1;
      delay(50);
    }
  }
  else if (moisture2_value > 55)
  {
    digitalWrite(relay2, LOW);
    relay2_state_flag = 0;
    delay(50);
    if ((relay1_state_flag == 0) && (relay2_state_flag == 0) && (relay3_state_flag == 0) && (relay4_state_flag == 0))
    {
      digitalWrite(pump, LOW);
      pump_state_flag = 0;
      delay(50);
    }
  }

  if (moisture3_value < 30)
  {
    digitalWrite(relay3, HIGH);
    relay3_state_flag = 1;
    delay(50);
    if (pump_state_flag == 0)
    {
      digitalWrite(pump, HIGH);
      pump_state_flag = 1;
      delay(50);
    }
  }
  else if (moisture3_value > 55)
  {
    digitalWrite(relay3, LOW);
    relay3_state_flag = 0;
    delay(50);
    if ((relay1_state_flag == 0) && (relay2_state_flag == 0) && (relay3_state_flag == 0) && (relay4_state_flag == 0))
    {
      digitalWrite(pump, LOW);
      pump_state_flag = 0;
      delay(50);
    }
  }

  if (moisture4_value < 30)
  {
    digitalWrite(relay4, HIGH);
    relay4_state_flag = 1;
    delay(50);
    if (pump_state_flag == 0)
    {
      digitalWrite(pump, HIGH);
      pump_state_flag = 1;
      delay(50);
    }
  }
  else if (moisture4_value > 55)
  {
    digitalWrite(relay4, LOW);
    relay4_state_flag = 0;
    delay(50);
    if ((relay1_state_flag == 0) && (relay2_state_flag == 0) && (relay3_state_flag == 0) && (relay4_state_flag == 0))
    {
      digitalWrite(pump, LOW);
      pump_state_flag = 0;
      delay(50);
    }
  }

}


void draw_ad(void){
  u8g.setFont(u8g_font_gdr9r);
  u8g.drawStr(5,55 , "https://liutyi.info");
  u8g.drawXBMP(0, 0,120,34, bitmap_logo);
}


void drawtime(void)
{
  int x = 5;
  float i = 25.00;
  float j = 54;
  DateTime now = RTC.now();
  Serial.print(now.year(), DEC);
  if (! RTC.isrunning())
  {
    u8g.setFont(u8g_font_6x10);
    u8g.setPrintPos(5, 20);
    u8g.print("RTC is NOT running!");
    RTC.adjust(DateTime(__DATE__, __TIME__));
  }
  else
  {
    u8g.setFont(u8g_font_7x13);
    u8g.setPrintPos(x, 11);
    u8g.print(now.year(), DEC);
    u8g.setPrintPos(x + 80, 11);
    u8g.print(daysOfTheWeek[now.dayOfTheWeek()]);
    u8g.setPrintPos(x + 28, 11);
    u8g.print("/");
    u8g.setPrintPos(x + 33, 11);
    u8g.print(now.month(), DEC);
    if (now.month() < 10)
      x -= 7;
    u8g.setPrintPos(x + 47, 11);
    u8g.print("/");
    u8g.setPrintPos(x + 53, 11);
    u8g.print(now.day(), DEC);
    u8g.setFont(u8g_font_8x13);
    int x = 35;
    u8g.setPrintPos(x, 33);
    u8g.print(now.hour(), DEC);
    if (now.hour() < 10)
      x -= 7;
    u8g.setPrintPos(x + 15, 33);
    u8g.print(":");
    u8g.setPrintPos(x + 21, 33);
    u8g.print(now.minute(), DEC);
    if (now.minute() < 10)
      x -= 7;
    u8g.setPrintPos(x + 36, 33);
    u8g.print(":");
    u8g.setPrintPos(x + 42, 33);
    u8g.print(now.second(), DEC);
  }
}

void drawLogo(uint8_t d)
{
  u8g.setFont(u8g_font_gdr25r);
  u8g.drawStr(8 + d, 30 + d, "l");
  u8g.setFont(u8g_font_gdr25r);
  u8g.drawStr(30 + d, 30 + d, "i");
  u8g.setFont(u8g_font_gdr25r);
  u8g.drawStr(40 + d, 30 + d, "u");
  u8g.setFont(u8g_font_gdr25r);
  u8g.drawStr(55 + d, 30 + d, "t");
  u8g.setFont(u8g_font_gdr25r);
  u8g.drawStr(70 + d, 30 + d, "y");
  u8g.setFont(u8g_font_gdr25r);
  u8g.drawStr(85 + d, 30 + d, "i");
  u8g.setFont(u8g_font_gdr25r);
  u8g.drawStr(100 + d, 30 + d, ".");
}


//Style the flowers     bitmap_bad: bad flowers     bitmap_good:good  flowers
void drawflower(void)
{
  if (moisture1_value < 30)
  {
    u8g.drawXBMP(0, 0, 32, 30, bitmap_bad);
  }
  else
  {
    u8g.drawXBMP(0, 0, 32, 30, bitmap_good);
  }
  if (moisture2_value < 30)
  {
    u8g.drawXBMP(32, 0, 32, 30, bitmap_bad);
  }
  else
  {
    u8g.drawXBMP(32, 0, 32, 30, bitmap_good);
  }
  if (moisture3_value < 30)
  {
    u8g.drawXBMP(64, 0, 32, 30, bitmap_bad);
  }
  else
  {
    u8g.drawXBMP(64, 0, 32, 30, bitmap_good);
  }
  if (moisture4_value < 30)
  {
    u8g.drawXBMP(96, 0, 32, 30, bitmap_bad);
  }
  else
  {
    u8g.drawXBMP(96, 0, 32, 30, bitmap_good);
  }

}


void drawTH(void)
{
  int A = 0;
  int B = 0;
  int C = 64;
  int D = 96;
  char moisture1_value_temp[5] = {0};
  char moisture2_value_temp[5] = {0};
  char moisture3_value_temp[5] = {0};
  char moisture4_value_temp[5] = {0};
  read_value();
  itoa(moisture1_value, moisture1_value_temp, 10);
  itoa(moisture2_value, moisture2_value_temp, 10);
  itoa(moisture3_value, moisture3_value_temp, 10);
  itoa(moisture4_value, moisture4_value_temp, 10);
  u8g.setFont(u8g_font_8x13);
  u8g.setPrintPos(9, 60);
  u8g.print("LEMON (1-3)");
  if (moisture1_value < 10)
  {
    //u8g.setPrintPos(A + 14, 45 );
    u8g.drawStr(A + 14, 45, moisture1_value_temp);
  }
  else if (moisture1_value < 100)
  {
    //u8g.setPrintPos(A + 6, 45);
    u8g.drawStr(A + 6, 45, moisture1_value_temp);
  }
  else
  {
    //u8g.setPrintPos(A + 2, 45 );
    moisture1_value = 100;
    itoa(moisture1_value, moisture1_value_temp, 10);
    u8g.drawStr(A + 2, 45, moisture1_value_temp);
  }
  //u8g.print(moisture1_value);
  u8g.setPrintPos(A + 23, 45 );
  u8g.print("%");
  //u8g.setPrintPos(41, 60 );
  //u8g.print("A1");
  if (moisture2_value < 10)
  {
    //u8g.setPrintPos(B + 46, 45 );
    u8g.drawStr(B + 46, 45, moisture2_value_temp);
  }
  else if (moisture2_value < 100)
  {
    //u8g.setPrintPos(B + 37, 45);
    u8g.drawStr(B + 37, 45, moisture2_value_temp);
  }
  else
  {
    //u8g.setPrintPos(B + 32, 45);
    moisture2_value = 100;
    itoa(moisture2_value, moisture2_value_temp, 10);
    u8g.drawStr(B + 32, 45, moisture2_value_temp);
  }
  // u8g.print(moisture2_value);
  u8g.setPrintPos(B + 54, 45);
  u8g.print("%");
  //u8g.setPrintPos(73, 60);
  //u8g.print("A2");
  if (moisture3_value < 10)
  {
    //u8g.setPrintPos(C + 14, 45 );
    u8g.drawStr(C + 14, 45, moisture3_value_temp);
  }
  else if (moisture3_value < 100)
  {
    // u8g.setPrintPos(C + 5, 45);
    u8g.drawStr(C + 5, 45, moisture3_value_temp);
  }
  else
  {
    // u8g.setPrintPos(C + 2, 45);
    moisture3_value = 100;
    itoa(moisture3_value, moisture3_value_temp, 10);
    u8g.drawStr(C + 2, 45, moisture3_value_temp);
  }
  //u8g.print(moisture3_value);
  u8g.setPrintPos(C + 23, 45);
  u8g.print("%");
  u8g.setPrintPos(100, 60);
  u8g.print("ORC");
  if (moisture4_value < 10)
  {
    //u8g.setPrintPos(D + 14, 45 );
    u8g.drawStr(D + 14, 45, moisture4_value_temp);
  }
  else if (moisture4_value < 100)
  {
    // u8g.setPrintPos(D + 5, 45);
    u8g.drawStr(D + 5, 45, moisture4_value_temp);
  }
  else
  {
    //u8g.setPrintPos(D + 2, 45);
    moisture4_value = 100;
    itoa(moisture4_value, moisture4_value_temp, 10);
    u8g.drawStr(D + 2, 45, moisture4_value_temp);
  }
  //u8g.print(moisture4_value);
  u8g.setPrintPos(D + 23, 45);
  u8g.print("%");
}