Try RGB-Colors but failed about ikea-tradfri-coap-docs HOT 9 CLOSED

...maybe, the middle-part must be something in this way:
'{ "3311": [{"5709": 65353, "5710": 65535}] }' (one more { left, and right } from the array)
...I try several variations, but in this I have a reaction...

Joachim

from ikea-tradfri-coap-docs.

That command should work fine.
One thing to note is that if your bulb isn't an RGB bulb this won't work.
Also if you enter an out of bounds value the bulb won't change and isn't going to give a response.

Can you first try a HEX value to make sure that your bulb is RGB capable and is changing accordingly.

from ikea-tradfri-coap-docs.

Hello Glenn,

the bulb I try is a "Tradfri bulb E14 CWS opal 600lm". I thing this is a "RGB"?
Maybe I have two parts where I can make a mistake:

1. Convert from RGB-Hex (given from the color-picker in the application) to xyY-Value
2. Convert the xyY from the given value to 0-65535
   A "normal" xyY-Value look like a value that ist 0 to 1?
   Do you have any idea for me?

Joachim

from ikea-tradfri-coap-docs.

That bulb should be indeed an RGB one.
If you try this command is it changing to Blue for example?:

coap-client -m put -u "$TF_USERNAME" -k "$TF_PRESHARED_KEY" -e '{ "3311": [{ "5706": ¨4a418a¨ }] }' "coaps://$TF_GATEWAYIP:5684/15001/$TF_DEVICEID"

from ikea-tradfri-coap-docs.

...that was first I try - direkt from the hex-value from color-picker send to the bulb, but not every time I see a reaction. I will try it again...

Joachim

from ikea-tradfri-coap-docs.

Yeah the bulbs are picky about the colors and I have to say that I didn't found a good HEX to xyY converter yet

from ikea-tradfri-coap-docs.

Some of the color bulbs are not true RGB. The use four groups of LEDs instead. blue, red, cold white and warm white. So e.g. the green colors cannot really be displayed (only a very bright greenish color). One can draw the area used in the Color space diagram to indicate, which xy colors can be used. Also depending on the brighness wanted not all colors can be set either. This might be complicated.
One would need to find out the xyY values for each of the LED grould used and then draw four points in the xy diagram accordingly. Connect them with a line and you get the area which can be used.

from ikea-tradfri-coap-docs.