💬 Temperature Sensor

[mfalkvidd]

@Alex-B-Goode the datasheet says "The 1-Wire bus requires an external pullup resistor of approximately 5kΩ"
The internal pull-up of most Arduinos are 20-50kΩ

So my guess is that the reason is that the person who created the instructions read the datasheet and chose to follow its recommendation. But accounding to http://electronics.stackexchange.com/a/62096/107155 the exact size might not be important, so it might be possible to use the internal pull up. Try it and let us know if it works.

[toddsantoro]

Does this example compile for anyone??? I get this error:

In file included from /Users/Documents/Arduino/tas_temp/tas_temp.ino:37:0:
/Users/Documents/Arduino/libraries/DallasTemperature/DallasTemperature.h: In function 'void loop()':
/Users/Documents/Arduino/libraries/DallasTemperature/DallasTemperature.h:252:13: error: 'int16_t DallasTemperature::millisToWaitForConversion(uint8_t)' is private
int16_t millisToWaitForConversion(uint8_t);

         ^

tas_temp:85: error: within this context
int16_t conversionTime = sensors.millisToWaitForConversion(sensors.getResolution());
^
exit status 1
within this context

[mfalkvidd]

@toddsantoro see post 2 and 3 in this thread or read the instructions on the build page, just under the "Example" heading.

[mrwomble]

@mfalkvidd said:

@toddsantoro see post 2 and 3 in this thread or read the instructions on the build page, just under the "Example" heading.

^ What he said 😁

[toddsantoro]

@mfalkvidd OK. I have it compiling and uploaded to the nano. My config file looks like this now:

sensor 6:
  -platform: onewire
    names:
      some_id: outside
      mount_dir: "/mnt/1wire"

I get an error when I restart HASS on the Pi.

ERROR (Thread-6) [homeassistant.components.sensor.onewire] No onewire sensor found. Check if dtoverlay=w1-gpio is in your /boot/config.txt. Check the mount_dir parameter if it's defined.

I guess my question is do I need to define the mount_dir variable and if so is the one I have correct? And if it is correct do I need to create that directory on my Pi?

I also do not get any output in the Arduino Serial Monitor window. Not sure if I even should...

Thanks in advance for any help...

[mfalkvidd]

@toddsantoro I am not familiar with homeassistant so I have no clue unfortunately.

About debug output on the serial monitor: Debug needs to be enabled first. See instructions at https://forum.mysensors.org/topic/666/debug-faq-and-how-ask-for-help and https://www.mysensors.org/build/debug

Debug output is often essential when troubleshooting.

[toddsantoro]

@mfalkvidd Thank you!!! I get this output in the serial monitor

TSM:INIT
TSM:RADIO:OK
TSP:ASSIGNID:OK (ID=2)
TSM:FPAR
TSP:MSG:SEND 2-2-255-255 s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
TSM:FPAR
TSP:MSG:SEND 2-2-255-255 s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
TSP:MSG:READ 0-0-2 s=255,c=3,t=8,pt=1,l=1,sg=0:0
TSP:MSG:FPAR RES (ID=0, dist=0)
TSP:MSG:PAR OK (ID=0, dist=1)
TSM:FPAR:OK
TSM:ID
TSM:CHKID:OK (ID=2)
TSM:UPL
TSP:PING:SEND (dest=0)
TSP:MSG:SEND 2-2-0-0 s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=ok:1
TSP:MSG:READ 0-0-2 s=255,c=3,t=25,pt=1,l=1,sg=0:1
TSP:MSG:PONG RECV (hops=1)
TSP:CHKUPL:OK
TSM:UPL:OK
TSM:READY
TSP:MSG:SEND 2-2-0-0 s=255,c=3,t=15,pt=6,l=2,sg=0,ft=0,st=ok:0100
TSP:MSG:SEND 2-2-0-0 s=255,c=0,t=17,pt=0,l=5,sg=0,ft=0,st=ok:2.0.0
TSP:MSG:SEND 2-2-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,ft=0,st=ok:0
TSP:MSG:READ 0-0-2 s=255,c=3,t=6,pt=0,l=1,sg=0:I
TSP:MSG:SEND 2-2-0-0 s=255,c=3,t=11,pt=0,l=18,sg=0,ft=0,st=ok:Temperature Sensor
TSP:MSG:SEND 2-2-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,ft=0,st=ok:1.1
Request registration...
TSP:MSG:SEND 2-2-0-0 s=255,c=3,t=26,pt=1,l=1,sg=0,ft=0,st=ok:2
TSP:MSG:READ 0-0-2 s=255,c=3,t=27,pt=1,l=1,sg=0:1
Node registration=1
Init complete, id=2, parent=0, distance=1, registration=1

Does this look OK? If so I will ask my previous question on the Home Assistant forum. You have been a great help and once I get one of these things down I will be able to help others:)

[mfalkvidd]

@toddsantoro yes that looks good.

The "st=ok:xyz" means message xyz was acknowledged by the destination node (in your case by the gateway)

[stingone]

No compile error but i cant see anything on the serial monitor. also the temp sensor burend out with a 4k7 resistor :S

[remis]

@stingone
Hi. The same issue for me . I solve it with : 38400 bauds configuration serial port ( instead of 115200 default value)
and i lowering the RF power output with low_pa enable: it confirms that I have some issues with power suppply.

good luck

[bentrik]

It seems the DallasTempereture library is not a part of the default Library setup from Mysensors as of version 2.0? I tried to compile the above code, but I had to manually download DallasTemperature from GitHub first. Then OneWire was also missing. Adding these two libraries brought me a bit further, but I get a long list of errors connected to OneWire. What libraries should be used?

[mfalkvidd]

@bentrik the library is part of the MySensorsArduinoExamples, which can be downloaded at https://github.com/mysensors/MySensorsArduinoExamples/archive/master.zip

[Sealander]

Hi All, i'm also new here and into this. Like others i also ran into problems compiling this sketch, i tried al libraries mentioned in the posts in this thread, but no go. keep getting this error message:

In file included from C:\Users\Gebruiker\Desktop\My Sensors\MySensors-master\MySensorsArduinoExamples-master\examples\DallasTemperatureSensor\DallasTemperatureSensor.ino:37:0:

C:\Users\Gebruiker\Documents\Arduino\libraries\DallasTemperature/DallasTemperature.h: In function 'void loop()':

C:\Users\Gebruiker\Documents\Arduino\libraries\DallasTemperature/DallasTemperature.h:252:13: error: 'int16_t DallasTemperature::millisToWaitForConversion(uint8_t)' is private

 int16_t millisToWaitForConversion(uint8_t);
         ^

DallasTemperatureSensor:85: error: within this context

int16_t conversionTime = sensors.millisToWaitForConversion(sensors.getResolution());

      exit status 1

within this context

Can someone help me with this problem? i have no clue at all and woud really like to build me a working sensor so i can hook it up to my Domoticz setup. thanks

hin this context

[stingone]

@Sealander

see solution above. Delete your dallas library and replace with the one above in the master zip file. That was the solution for me.

[bentrik]

@mfalkvidd Thanks for the feedback, It got me a bit further.
I have a fresh Windows Arduino 1.6.12 install, and I have download the MySensors Library 2.0 through the Library manager, and I've found MySensors.h and MyConfig.h under \Documents\Arduino\libraries\MySensors

I'm able to compile and upload the RelayActuator but quite a few of the library files seem to be missing in 2.0. DallasTemperature seem to be one of them.-But I struggled with DallasTemperature and some others.

I copied all the whole MySensors-1.5.4.zip library files to to C:\Program Files (x86)\Arduino\libraries, and I managed to compile, but I got an error message saying Invalid version found: 1.04
Then I tried to only copy the DallasTemperature and OneWire folder, and I had no errors.

-So I assume all library files the entire MySensors Examples catalouge are not ready in Libraries 2.0.

Anyways: The solution to get this sensor to work with Arduino 1.6.12, following the Download and API guide, adding MySensors 2.0 through the Library Manager, is to manually add:
\Arduino\libraries\DallasTemperature
\Arduino\libraries\OneWire\

-from https://github.com/mysensors/MySensorsArduinoExamples/archive/master.zip
-And not adding the whole structure.

Now I just have to find out how to make it speak to my serial gateway :satisfied:

[wendan]

I get the feeling it is possible to use more then one sensor parallel on port 3. I wonder if each sensor is being monitored? Am I right and do I need to alter or change something?

[wendan]

my feeling was right.... i just connected 5 temp censors it is working great

[Joseph Absher]

I am getting the error:

DallasTemperatureSensor.ino: In function 'void loop()':
DallasTemperatureSensor:93: error: 'getConfig' was not declared in this scope
     float temperature = static_cast<float>(static_cast<int>((getConfig().isMetric?sensors.getTempCByIndex(i):sensors.getTempFByIndex(i)) * 10.)) / 10.;

Does anyone have any suggestions?

[mfalkvidd]

@Joseph-Absher https://forum.mysensors.org/topic/5841/getconfig-was-not-declared-in-this-scope-v2-1-1-fixed

[Joseph Absher]

@mfalkvidd That worked. Thanks.