mirror of
https://github.com/RobTillaart/Arduino.git
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75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
//
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// FILE: dht33_test.ino
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// AUTHOR: Rob Tillaart
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// PURPOSE: DHT library test sketch for DHT33 && Arduino
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// URL: https://github.com/RobTillaart/DHTlib
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#include <dht.h>
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dht DHT;
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#define DHT33_PIN 5
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void setup()
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{
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Serial.begin(115200);
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Serial.println("DHT TEST PROGRAM ");
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Serial.print("LIBRARY VERSION: ");
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Serial.println(DHT_LIB_VERSION);
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Serial.println();
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Serial.println("Type,\tstatus,\tHumidity (%),\tTemperature (C)\tTime (us)");
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}
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void loop()
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{
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// READ DATA
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Serial.print("DHT33, \t");
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uint32_t start = micros();
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int chk = DHT.read33(DHT33_PIN);
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uint32_t stop = micros();
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switch (chk)
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{
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case DHTLIB_OK:
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Serial.print("OK,\t");
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break;
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case DHTLIB_ERROR_CHECKSUM:
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Serial.print("Checksum error,\t");
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break;
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case DHTLIB_ERROR_TIMEOUT:
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Serial.print("Time out error,\t");
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break;
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case DHTLIB_ERROR_CONNECT:
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Serial.print("Connect error,\t");
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break;
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case DHTLIB_ERROR_ACK_L:
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Serial.print("Ack Low error,\t");
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break;
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case DHTLIB_ERROR_ACK_H:
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Serial.print("Ack High error,\t");
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break;
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default:
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Serial.print("Unknown error,\t");
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break;
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}
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// DISPLAY DATA
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Serial.print(DHT.humidity, 1);
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Serial.print(",\t");
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Serial.print(DHT.temperature, 1);
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Serial.print(",\t");
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Serial.print(stop - start);
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Serial.println();
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// FOR UNO + DHT33 400ms SEEMS TO BE MINIMUM DELAY BETWEEN SENSOR READS,
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// ADJUST TO YOUR NEEDS
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delay(1000);
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}
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// -- END OF FILE --
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