K1208061 Analog Output Humidity

Other Hardware Sensors
1

No idea what I am doing

with
K1208061 Analog Output Humidity Detection Sensor Module for Arduino.
I testing output, but i dont now why is result negative?

Does anyone know how to conect this sensor.
How do I get the true value?

2

This one ?

The Aout gives U a voltage varying with himidity
The Dout gives high or low (0 or 1). Use the pot to set switcing point

Need more info on the actual sensor to tell how the analog output behaves

EDIT
..may this be relevant ?

If there isn't an oscillator (1kHz+/-).. the measuments of this sensor will be off (a lot)

My guess:
There is a voltage divider made from sensor and an onboard resitor (500k or so)
What valtage can u measure at Uout , indoor, 20Celcius ? (can help to decide R)

You have got youself a typical copy of Chineese 'hi.tech'... spells C R A P

humidity.png
humidity.png788×848 166 KB

3

Thanks for the quick response.
I don't know how to solve this.
My knowledge of electronics and programming.
It is at the beginning.

4

This small program will return a value every second
Connect sensors 5V to 5V, GND to GND and Aout to Aduinos A0
Upload .. then open the serial monitor (lower right.:.9600 baud)
U'll get a value that changes with humidity (try blowing at the sensor)
.. That number goes into a funtion which return the actual RH

void setup() 
{
 Serial.begin(9600);  
}

void loop() 
{
  int sensorValue = analogRead(A0);    
  Serial.println(sensorValue);
  delay(1000);                  
}