Sistema de monitoramento de jardim IoT baseado em Arduino

Criação de widget de medidor Freeboard.io

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//Program to 


/*=========================================================================*/

/*Standard Library                                                         */

/*=========================================================================*/

#include 

#include


/*=========================================================================*/

/*Variable Initialization for Senor pins                                   */

/*=========================================================================*/

dht DHT;

#define DHT11_PIN 3

#define RM_1 6

#define RM_2 7


float t=0;

float h=0;


int sen_val = 0;

int lig_val = 0;


char data = 0;


#define MOS_SEN A0

#define LDR_SEN A1

/*=========================================================================*/

/*API key for thingspeak and change with your API                          */

/*=========================================================================*/


String apiKey = "CAM10KIK7YH2HAO0";


/*=========================================================================*/

/*Serial pins for connecting WiFi module                                   */

/*=========================================================================*/

SoftwareSerial ser(10,11); // RX, TX


/*=========================================================================*/

/*Setup  function that runs first                                         */

/*=========================================================================*/

void setup 

{

 Serial.begin(9600);

 pinMode(MOS_SEN, INPUT);

 pinMode(LDR_SEN, INPUT);

 pinMode(RM_1, OUTPUT);

 pinMode(RM_2, OUTPUT);

   

 ser.begin(9600);

  

 // reset ESP8266 WiFi connection AT+CIPMUX=1 AT+CWJAP

/*========================================================================*/

/*AT commands for establishing WiFi connection                            */

/*========================================================================*/

  ser.println("AT");

  delay(1000);

  ser.println("AT+GMR");

  delay(1000);

  ser.println("AT+CWMODE=3");

  delay(1000);

  ser.println("AT+RST");

  delay(5000);

  ser.println("AT+CIPMUX=1");

  delay(1000);

  String cmd="AT+CWJAP="EngineersGarage","egP@$$w0rd?"";

  ser.println(cmd);

  delay(1000);

  ser.println("AT+CIFSR");

  delay(1000);

}


/*========================================================================*/

/*Loop functions that runs infinitely that collects sensor data           */

/*========================================================================*/

void loop  

{

  delay(1000);

  int chk = DHT.read11(DHT11_PIN);

  Serial.print("Temperature = ");

  t = DHT.temperature;

  Serial.println

  Serial.print("Humidity = ");

  h = DHT.humidity;

  Serial.println(h);

  lig_val = analogRead(LDR_SEN);

  int mos_val = read_mos ;

  

  if(mos_val > 80)

  {

    Serial.println("Start");

    digitalWrite(RM_1, HIGH);

    digitalWrite(RM_2, LOW);

  }

   else if(read_mos  < 80)

  {

      Serial.println("Stop");

      digitalWrite(RM_1, LOW);

      digitalWrite(RM_2, LOW);

  }

  Serial.println(sen_val);

  delay(500);

  Serial.print("Light Intensity = ");

  Serial.println(lig_val);

  delay(500);


  esp_8266 ;

}


/*========================================================================*/

/*esp8266 funtion that uploads data to web                                */

/*========================================================================*/

void esp_8266 

{

   // TCP connection AT+CIPSTART=4,"TCP","184.106.153.149",80 

    String cmd = "AT+CIPSTART=4,"TCP","";

    cmd += "184.106.153.149"; // api.thingspeak.com

    cmd += "",80";

    ser.println(cmd);

    Serial.println(cmd); 

    if(ser.find("Error"))

    {

      Serial.println("AT+CIPSTART error");

      return;

    }

  // prepare GET string GET 

  String getStr = "GET /update?api_key=";

  getStr += apiKey;

  getStr +="&field1=";

  getStr +=String(h);

  getStr +="&field2=";

  getStr +=String

  getStr +="&field3=";

  getStr +=String(sen_val);

  getStr +="&field4=";

  getStr +=String(lig_val);

  getStr += "rnrn";

  

  // send data length

  cmd = "AT+CIPSEND=4,";

  cmd += String(getStr.length );

  ser.println(cmd);

  Serial.println(cmd);

  delay(1000);

  ser.print(getStr);

  Serial.println(getStr);

 //thingspeak needs 15 sec delay between updates

  delay(15000);

}


int read_mos 

{

    sen_val = analogRead(MOS_SEN);

    Serial.print("Moisture = ");

    sen_val = map(sen_val,0,1023,0,255);

    return sen_val;

}