colin異世界

今天測試第一個sensor是DHT11 溫溼度感測

參考這篇文章

http://ming-shian.blogspot.tw/2014/05/arduino19dht...

DHT11的電壓從3v~5V,我選擇用3.3V

由於是數位訊號,就隨便選一個pin

我是定義pin 24

程式如下:

#include <dht.h>   
 
#define dht_dpin 24 //定義訊號要從Pin 24 進來  
dht DHT;   
void setup() {
Serial.begin(9600);   
delay(1000);             //Let system settle   
Serial.println("Humidity and temperature\n\n");   
delay(1000);             //Wait rest of 1000ms recommended delay before   
                        //accessing sensor
}

void loop() {
DHT.read11(dht_dpin);   //去library裡面找DHT.read11  
Serial.print("Humidity = ");   
Serial.print(DHT.humidity);   
Serial.print("% ");   
Serial.print("temperature = ");   
Serial.print(DHT.temperature);   
Serial.println("C ");   
delay(2000);            //每1000ms更新一次
}

上傳時又出問題了,錯誤訊息如下:

GetFileAttributesEx D:\arduino\libraries\DHT\dht.cpp D:\arduino\libraries\DHT\dht.h: The filename, directory name, or volume label syntax is incorrect.

只要將目錄的名稱DHT隨便改一個名字就OK

改成TemperatureandHumidity,

結果如下