GY-63_MS5611/libraries/DHTNEW/examples/dhtnew_powerDown/dhtnew_powerDown.ino

//
//    FILE: dhtnew_powerDown.ino
//  AUTHOR: Rob Tillaart
// VERSION: 0.1.0
// PURPOSE: DHTNEW library test sketch for Arduino
//     URL: https://github.com/RobTillaart/DHTNew
//
// DHT PIN layout from left to right
// =================================
// FRONT : DESCRIPTION
// pin 1 : VCC
// pin 2 : DATA
// pin 3 : Not Connected
// pin 4 : GND

// to see the effect one must apply a voltmeter to the datapin of the sensor
// during the low power mode. Measuring during communication will disrupt the
// data transfer.

#include <dhtnew.h>

DHTNEW mySensor(16);

void setup()
{
  Serial.begin(115200);
  Serial.println("dhtnew_test.ino");
  Serial.print("LIBRARY VERSION: ");
  Serial.println(DHTNEW_LIB_VERSION);

  Serial.println("\nstartup");
  delay(2000);

  Serial.println("read sensor with 2 second interval");
  for (int i = 0; i < 3; i++)
  {
    int rv = mySensor.read();
    if (rv != DHTLIB_OK)
    {
      Serial.println(rv);  // will print -7 when measuring voltage
    }
    Serial.print(mySensor.getHumidity(), 1);
    Serial.print(",\t");
    Serial.println(mySensor.getTemperature(), 1);
    delay(2000);
  }

  Serial.println("switch to low power (~ 5 seconds )");
  Serial.println("measure voltage");
  mySensor.powerDown();
  delay(5000);

  Serial.println("switch sensor on (and wait 2 seconds)");
  mySensor.powerUp();
  // wait for 2 seconds.
  delay(2000);

  Serial.println("read sensor with 2 second interval");
  for (int i = 0; i < 3; i++)
  {
    mySensor.read();
    Serial.print(mySensor.getHumidity(), 1);
    Serial.print(",\t");
    Serial.println(mySensor.getTemperature(), 1);
    delay(2000);
  }

  Serial.println("\nDone...");
}

void loop()
{
}

// END OF FILE