mirror of
https://github.com/RobTillaart/Arduino.git
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75 lines
1.7 KiB
C++
75 lines
1.7 KiB
C++
//
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// FILE: dhtnew_powerDown.ino
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.0
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// PURPOSE: DHTNEW library test sketch for Arduino
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// URL: https://github.com/RobTillaart/DHTNew
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//
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// DHT PIN layout from left to right
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// =================================
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// FRONT : DESCRIPTION
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// pin 1 : VCC
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// pin 2 : DATA
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// pin 3 : Not Connected
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// pin 4 : GND
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// to see the effect one must apply a voltmeter to the datapin of the sensor
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// during the low power mode. Measuring during communication will disrupt the
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// data transfer.
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#include <dhtnew.h>
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DHTNEW mySensor(16);
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void setup()
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{
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Serial.begin(115200);
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Serial.println("dhtnew_test.ino");
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Serial.print("LIBRARY VERSION: ");
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Serial.println(DHTNEW_LIB_VERSION);
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Serial.println("\nstartup");
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delay(2000);
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Serial.println("read sensor with 2 second interval");
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for (int i = 0; i < 3; i++)
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{
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int rv = mySensor.read();
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if (rv != DHTLIB_OK)
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{
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Serial.println(rv); // will print -7 when measuring voltage
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}
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Serial.print(mySensor.getHumidity(), 1);
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Serial.print(",\t");
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Serial.println(mySensor.getTemperature(), 1);
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delay(2000);
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}
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Serial.println("switch to low power (~ 5 seconds )");
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Serial.println("measure voltage");
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mySensor.powerDown();
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delay(5000);
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Serial.println("switch sensor on (and wait 2 seconds)");
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mySensor.powerUp();
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// wait for 2 seconds.
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delay(2000);
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Serial.println("read sensor with 2 second interval");
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for (int i = 0; i < 3; i++)
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{
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mySensor.read();
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Serial.print(mySensor.getHumidity(), 1);
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Serial.print(",\t");
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Serial.println(mySensor.getTemperature(), 1);
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delay(2000);
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}
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Serial.println("\nDone...");
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}
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void loop()
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{
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}
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// END OF FILE
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