50 lines
1.1 KiB
C++
50 lines
1.1 KiB
C++
/*
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* @Author: dugulingping
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* @Date: 2022-04-15 21:25:51
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* @LastEditTime: 2022-05-23 16:57:02
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* @LastEditors: dugulingping
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* @Description: DHT11
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* @FilePath: \test\DHT11\DHT11.ino
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*/
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#include "DHT.h"
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#define DHTPIN 4
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#define DHTTYPE DHT22 // DHT 11`
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DHT dht(DHTPIN, DHTTYPE);
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void setup() {
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Serial.begin(115200);
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Serial.println(F("\nDHT11 test!"));
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dht.begin();
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}
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void loop() {
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delay(2000);
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// Reading temperature or humidity takes about 250 milliseconds!
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// Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
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float h = dht.readHumidity();
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// Read temperature as Celsius (the default)
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float t = dht.readTemperature(false);
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// Check if any reads failed and exit early (to try again).
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if (isnan(h) || isnan(t)){
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Serial.println(F("Failed to read from DHT sensor!"));
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return;
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}
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// Compute heat index in Celsius (isFahreheit = false)
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float hic = dht.computeHeatIndex(t, h, false);
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Serial.print(F("湿度: "));
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Serial.print(h);
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Serial.print(F("%\t温度: "));
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Serial.print(t);
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Serial.print(F("°C "));
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Serial.print(F("\t体感温度: "));
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Serial.print(hic);
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Serial.print(F("°C \n"));
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} |