EZP-Temperature-Humidity-4-1

 
/* YourSmartDuino-EM  EZP-TEMPERATURE-HUMIDITY
  - WHAT IT DOES: Measures and displays Temperature and Humidity
  - Changes from C to F with a switch
  - Uses the KEYES Easy-Plug Modules

  - V3. 2/13/2019
   Questions: terry@yourduino.com
  - SEE the comments after "//" on each line below
  - CONNECTIONS: KEYES Easy-Plug Control Board V2.0
    NOTE: Different Software examples use a different sets of modules.


  /*-----( Import needed libraries )-----*/

// Get the LCD I2C Library here:
// https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads
// Move any other LCD libraries to another folder or delete them
// See Library "Docs" folder for possible commands etc.
#include <LiquidCrystal_I2C.h>

#include <dhtnew.h>     // DHT11 Temperature-Humidity Sensor 
// [Rob Tillaart's new version: It finds out what module is being used

/*----------------( Declare Constants and Pin Numbers )-------------------*/
#define LED_MODULE_PIN    6
#define BUZZER_PIN        7
#define ONBOARD_LED_PIN   13

//----( DIGITAL INPUT Pins)----
#define SWITCH_PIN        A3   // Used for a variety of On-OFF Devices
#define DHT11_PIN         8    // Temperature/Humidity Sensor

//------( LOCAL DEFINITIONS )---------
#define ON       1
#define OFF      0

/*--------------------( Declare objects )-------------------------*/
LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);   // Define the LCD Display
DHTNEW Temp_Humid_Sensor(DHT11_PIN);   // Define the DHT11 Temperature / humidity sensor

/*------------------------( Declare Variables )-----------------------------------*/
float temperatureC;
float temperatureF;
float humidityPercent;

boolean TempIsC = true;   // For switching between C and F


void setup()   /******************* SETUP: RUNS ONCE *************************/
{
  Serial.begin(115200);        // Start up the Serial Monitor

  lcd.begin(16, 2);  // initialize the lcd for 16 chars 2 lines, turn on backlight
  lcd.noBacklight();
  delay(500);
  lcd.backlight(); // finish with backlight on

  lcd.setCursor(0, 0); //Start at character 0 on line 0
  lcd.print(F("YourSmart!Duino"));
  lcd.setCursor(0, 1); //Start at character 0 on line 0
  lcd.print(F("YourDuino.com"));
  //
  pinMode(LED_MODULE_PIN, OUTPUT);
  pinMode(ONBOARD_LED_PIN, OUTPUT);
  pinMode(BUZZER_PIN, OUTPUT);
  pinMode(SWITCH_PIN, INPUT_PULLUP);

  Serial.println("Option 4: Temperature / Humidity");

  lcd.setCursor(0, 0); //Start at character 0 on line 0
  //-----------1234567890123456----------
  lcd.print(F("4: Temp-Humidity"));
  lcd.setCursor(0, 1); //Start at character 0 on line 1
  lcd.print(F("DHT11 Sensor "));

  delay(2000);
}//--(end setup )---


void loop()   /********************** LOOP: RUNS CONSTANTLY ************************/
{

  /*-------------( Option 4 )---------------

          User connects:
          switch to A3
          DHT11 Temperature/Humidity sensor to D8
          LCD display to I2C
  */

  Temp_Humid_Sensor.read();
  delay(1000);
  lcd.setCursor(0, 0); //Start at character 0 on line 0
  lcd.print("Humidity   = ");
  humidityPercent = Temp_Humid_Sensor.humidity;
  lcd.print(humidityPercent, 0);
  lcd.print("%");

  if (digitalRead(SWITCH_PIN ) == OFF)  //Active pushbutton
    TempIsC = true;
  else
    TempIsC = false;

  if (TempIsC == true)
  {
    lcd.setCursor(0, 1); //Start at character 0 on line 1
    lcd.print("Temperature= ");
    temperatureC = Temp_Humid_Sensor.temperature;
    lcd.print(temperatureC, 0);
    lcd.print("C");
  }
  else
  {
    lcd.setCursor(0, 1); //Start at character 0 on line 1
    lcd.print("Temperature= ");
    temperatureC = Temp_Humid_Sensor.temperature;
    temperatureF = (temperatureC * (9.0 / 5.0)) + 32.0;
    lcd.print(temperatureF, 0);
    lcd.print("F");
  }

}//--(end main loop )---


/*--------------------( Declare User-written Functions )------------------------*/
//NONE
//*********( THE END )***********