// // FILE: dhtint_powerDown.ino // AUTHOR: Rob Tillaart // PURPOSE: DHTINT library test sketch for Arduino // URL: https://github.com/RobTillaart/DHTINT // 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 data pin of the sensor // during the low power mode. Measuring during communication will disrupt the // data transfer. #include DHTINT mySensor(16); void setup() { while(!Serial); // MKR1010 needs this Serial.begin(115200); Serial.println("dhtint_powerDown.ino"); Serial.print("DHTINT_LIB_VERSION: "); Serial.println(DHTINT_LIB_VERSION); // MKR1010 needs this // mySensor.setDisableIRQ(false); 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()); Serial.print(",\t"); Serial.println(mySensor.getTemperature()); 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()); Serial.print(",\t"); Serial.println(mySensor.getTemperature()); delay(2000); } Serial.println("\nDone..."); } void loop() { } // -- END OF FILE --