DHT sensor for Mysensors V2

[mehrdad.silatani]

Hi,

I was wondering if someone can help me to setup a DHT sensor for mysensors V2. For some reason I dont have it inside my mysensors library ! Also, the video and the example sketch on the website is for the older version.

Cheers,
Mehrdad

[sundberg84]

@mehrdad.silatani - Hi!
Because it is dependent of an external library it was moved to a seperat folder for 2.0.

https://github.com/mysensors/MySensorsArduinoExamples/tree/master/examples/DhtTemperatureAndHumiditySensor

Lib: https://github.com/mysensors/MySensorsArduinoExamples/tree/master/libraries/DHT

[mehrdad.silatani]

@sundberg84 Fantastic ! It worked very well ! Thanks for quick response !

[mehrdad.silatani]

Ok, I have one more general question !

I have experience in working with Arduinos alone, and most of the time I kinda always manage to understand the example sketches, then expand it, modify it or write another one from scratch to my specifications. But when it comes to Mysensors IDEs, I am really struggling to fully understand them and tweak them ... All those "CHILD_ID_... , S_... , V_... , Void presentation (), ......"

Is there any guide available that I can start reading up ?

Cheers,
Mehrdad

[sundberg84]

@mehrdad.silatani - well, since we are in the middle of 1.6 and 2.0 it might be a bit messy at the moment. You have the API and all the technial stuff here for all versions: https://www.mysensors.org/download/

Aslo there is a great tutorial how to combine sketches... but I cant find it

[mfalkvidd]

@sundberg84 could https://forum.mysensors.org/topic/115/implementing-multiple-sensors/4 be the one?

[sundberg84]

@mfalkvidd said:

@sundberg84 could https://forum.mysensors.org/topic/115/implementing-multiple-sensors/4 be the one?

YES! Thank you!

[Tagore.PDE]

Anyone tried that?
i m getting error with dht.readSensor.

Arduino: 1.6.9 (Windows 7), Board: "Arduino/Genuino Uno"

WARNING: Category '' in library UIPEthernet is not valid. Setting to 'Uncategorized'
C:\Users\Usuario\Documents\Arduino\GW Serial 2.0\GwSerial.v.0.3\GwSerial.v.0.3.ino: In function 'void loop()':

GwSerial.v.0.3:198: error: no matching function for call to 'DHT::readSensor(bool)'

   dht.readSensor(true);

                      ^

C:\Users\Usuario\Documents\Arduino\GW Serial 2.0\GwSerial.v.0.3\GwSerial.v.0.3.ino:198:22: note: candidate is:

In file included from C:\Users\Usuario\Documents\Arduino\GW Serial 2.0\GwSerial.v.0.3\GwSerial.v.0.3.ino:38:0:

C:\Program Files (x86)\Arduino\libraries\DHT/DHT.h:83:8: note: void DHT::readSensor()

   void readSensor();

        ^

C:\Program Files (x86)\Arduino\libraries\DHT/DHT.h:83:8: note:   candidate expects 0 arguments, 1 provided

Multiple libraries were found for "DHT.h"
 Used: C:\Program Files (x86)\Arduino\libraries\DHT
 Not used: C:\Users\Usuario\Documents\Arduino\libraries\DHT_sensor_library
exit status 1
no matching function for call to 'DHT::readSensor(bool)'

[mfalkvidd]

@Tagore.PDE looks similar to https://forum.mysensors.org/topic/4672/dht-sketch-version-2-0-0-error-solved/ - see if using the dht version in the MySensors examples helps.

[Tagore.PDE]

Yes, thx. same issue.