arduino/dht22/dht22.ino

42 lines
1.1 KiB
C++

#include "lib/SimpleDHT/SimpleDHT.h"
#include "lib/SimpleDHT/SimpleDHT.cpp"
const int dhtA_pin = 7;
SimpleDHT22 dhtA;
void setup() {
Serial.begin(9600);
Serial.println("DHT22 Demo");
Serial.println("==========");
Serial.print("Waiting to warm DHT22 up - ");
delay(2000); // Give the DHT22 time to warm up
Serial.println("done");
}
void loop() {
float temp = 0, humidity = 0;
int read_error = dhtA.read2(dhtA_pin, &temp, &humidity, NULL);
Serial.println("Read complete - analysing result");
if(read_error != SimpleDHTErrSuccess) {
Serial.print("Error: Failed reading from the DHT22. Code: ");
Serial.println(read_error);
delay(2000); // We can only read every 2 seconds or so
return;
}
Serial.print("Error code: ");
Serial.println(read_error);
Serial.print("Temperature: ");
Serial.print(temp);
Serial.println(" deg celsius");
Serial.print("Humidity: ");
Serial.print(humidity);
Serial.println("%");
Serial.println("*****");
delay(2000); // We can only read every 2 seconds
}