recently Ive set up an ESP8266 to control temperature and humidity in rooms, for this Im using DHT11 sensor, thats the basic code I have in order to check functionality in Arduino IDE
#include "DHT.h"
#define DHTPIN A0
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);
void setup() {
Serial.begin(9600);
Serial.println("DHT11 Testprogram");
dht.begin();
}
void loop() {
// Wait a few seconds between measurements.
delay(2000);
float h = dht.readHumidity();
float t = dht.readTemperature();
if (isnan(h) || isnan(t)) {
Serial.println("Error");
return;
}
Serial.print("Luftfeuchtigkeit: ");
Serial.print(h);
Serial.print("%\t");
Serial.print("Temperatur: ");
Serial.print(t);
Serial.write('°');
Serial.println("C");
}
So far as I've checked the code seems to be all right and doesn't have any issues. The bottleneck might be the circuit although I checked twice and I don't really understand what the issue still might be.
the 3V is connected to the + and to the pull up resistor of the sensor which is 10K and A0 Pin according to the plan with data pin of the sensor as well as with a pull up resistor and G is connected to - of the sensor. I still get no response from the sensor, I even checked other 3 sensors and cannot understand what the issue might be, does anyone know a solution?
