Weather Station Sketch

[maxim]

Hello everybody,

I have a question about the weather station sketch:

https://github.com/windkh/mysensors/blob/master/WeatherStationSensor/WeatherStationSensor.ino

this sketch is recommended in the forum but the DHT sensor measures no temperature changes or humidity change, during BMP180 to a temperature change responds.
I have tested the DHT-sensor with the Humidity Sketch of Mysensors under IDE> examples, the sensor reacts immediately to a change in temperature.

Only when I reboot Arduino, then DHT provides the right temperature !?

Even the official weather station sketch behaves exactly

Can someone help me, thanks in advance.

(Between pin1 and pin2 a 10Kohm resistor is built)

greeting
Timo

[mfalkvidd]

Hi @maxim, welcome to the MySensors forum!

Whatd does the serial debug output say?

[maxim]

Hi, thanks for your reply.
I see in the serial monitor (debug is enabled) that the temperature and the humidity data are alternately displayed, but no changes are displayed. If I put an ice pack on the sensor, it shows 24 degrees :)
But after about an hour I see in serial monitor that the temperature goes down to 12 degrees.

[maxim]

also the official Sketch with development library behaves the same way, which means there is no temperature change of DHT22 in serial monitor display, after a new start of Arduino I see the right temperature, I do not know what I'm doing wrong?

Sketch:
https://github.com/mysensors/Arduino/blob/development/libraries/MySensors/examples/WeatherStationSensor/WeatherStationSensor.ino