HTTP binding with Color item

[Petr Klus]

Hi,

I am trying to control my legacy home automation using the HTTP binding. I would like to use RGB light but I am struggling to see what are the right commands to set. I am using following for testing:

Color  IND_LivingRoom_Lamp_RGB "RGB Light" {http=">[INCREASE:GET:http://192.168.2.202:7777/views/nook/light_SET/aa/bb/cc]"}

The code above works and triggers the URL, however, I would like the URL to be triggered on colour wheel change - after digging through the code I found that Color item accepts HSBtype to get hue/saturation etc. passed - exactly what I need.

What I imagine would be the right format:

Color  IND_LivingRoom_Lamp_RGB "RGB Light" {http=">[HSB:GET:http://192.168.2.202:7777/views/nook/light_SET/%1$s/%2$s/%3$s]"}

However, the HSB command does not work and I simply cannot seem to be able to find the right word. I have of course tried * as a command too, however, this does not cause the URL to be hit.

Any help please?

[Petr Klus]

(Sorry for spam, but BUMP)

[Gert Konemann]

Petr,

I have no experience with color items, but use the openhab http binding. Maybe some questions can help you on the right track

1. Can you issue http://192.168.2.202:7777/views/nook/light_SET/%1$s/%2$s/%3$s in a browser and does it give the expected reaction ? 

2. Are the procent signs meant as parameter prefixes or as literal escape ?

3. Are the openhab samples maybe helpful for you. See:

https://code.google.com/p/openhab-samples/wiki/Rules#How_to_use_Colorpicker_widget_with_KNX/DALI_RGB_LED_STRIPE

Gert

Op dinsdag 18 maart 2014 15:52:40 UTC+1 schreef Petr Klus:

[Petr Klus]

Thank you very much for the tip! with the help of rules, I was able to get it to work:

import org.openhab.core.library.types.*

var HSBType hsbValue

var String  redValue

var String  greenValue

var String  blueValue

rule "Set RGB value"

when

        Item IND_LivingRoom_Lamp_RGB changed

then

        hsbValue = IND_LivingRoom_Lamp_RGB.state as HSBType

        redValue   = hsbValue.red.intValue.toString

        greenValue = hsbValue.green.intValue.toString

        blueValue  = hsbValue.blue.intValue.toString

                

        sendHttpGetRequest("http://192.168.2.202:7777/views/nook/light_SET/"+redValue+"/"+greenValue+"/"+blueValue)

end

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