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標(biāo)題: 源代碼arduino dht11 [打印本頁(yè)]

作者: zzz873 時(shí)間: 2017-12-26 17:53
標(biāo)題: 源代碼arduino dht11
/ FILE: dht_test.pde

// PURPOSE: DHT library test sketch for Arduino

//

//需要先建立librariesDHT文件夾中兩個(gè)庫(kù)文件

#include <dht.h>

dht DHT;

#define DHT11_PIN 4//put the sensor in the digital pin 4

void setup()

{

Serial.begin(9600);

Serial.println("DHT TEST PROGRAM ");

Serial.print("LIBRARY VERSION: ");

Serial.println(DHT_LIB_VERSION);

Serial.println();

Serial.println("Type,\tstatus,\tHumidity (%),\tTemperature (C)");

}

void loop()

{

// READ DATA

Serial.print("DHT11, \t");

int chk = DHT.read11(DHT11_PIN);

switch (chk)

{

case 0: Serial.print("OK,\t"); break;

case -1: Serial.print("Checksum error,\t"); break;

case -2: Serial.print("Time out error,\t"); break;

default: Serial.print("Unknown error,\t"); break;

}

// DISPLAT DATA

Serial.print(DHT.humidity,1);

Serial.print(",\t");

Serial.println(DHT.temperature,1);

delay(1000);

}

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