mirror of
https://github.com/RobTillaart/Arduino.git
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104 lines
2.2 KiB
C++
104 lines
2.2 KiB
C++
//
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// FILE: dht22_test.ino
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// AUTHOR: Rob Tillaart
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// PURPOSE: DHT library test sketch for DHT22 && Arduino
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// URL: https://github.com/RobTillaart/DHTstable
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#include "DHTStable.h"
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DHTStable DHT;
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#define DHT22_PIN 5
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struct
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{
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uint32_t total;
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uint32_t ok;
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uint32_t crc_error;
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uint32_t time_out;
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uint32_t connect;
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uint32_t ack_l;
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uint32_t ack_h;
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uint32_t unknown;
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} counter = { 0,0,0,0,0,0,0,0};
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void setup()
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{
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Serial.begin(115200);
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Serial.println(__FILE__);
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Serial.print("LIBRARY VERSION: ");
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Serial.println(DHTSTABLE_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("DHT22, \t");
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uint32_t start = micros();
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int chk = DHT.read22(DHT22_PIN);
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uint32_t stop = micros();
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counter.total++;
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switch (chk)
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{
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case DHTLIB_OK:
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counter.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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counter.crc_error++;
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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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counter.time_out++;
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Serial.print("Time out error,\t");
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break;
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default:
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counter.unknown++;
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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.getHumidity(), 1);
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Serial.print(",\t");
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Serial.print(DHT.getTemperature(), 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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// DISPLAY COUNTERS
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if (counter.total % 20 == 0)
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{
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Serial.println("\nTOT\tOK\tCRC\tTO\tUNK");
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Serial.print(counter.total);
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Serial.print("\t");
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Serial.print(counter.ok);
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Serial.print("\t");
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Serial.print(counter.crc_error);
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Serial.print("\t");
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Serial.print(counter.time_out);
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Serial.print("\t");
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Serial.print(counter.connect);
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Serial.print("\t");
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Serial.print(counter.ack_l);
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Serial.print("\t");
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Serial.print(counter.ack_h);
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Serial.print("\t");
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Serial.print(counter.unknown);
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Serial.println("\n");
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}
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delay(2000);
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}
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// -- END OF FILE --
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