Transition Time is not a Float about ikea-tradfri-coap-docs

[Joey-1970]

Hello Dominik and Glenn,

thanks for your note - now the fade time works!

Joachim

[Joey-1970]

Hello Dominik,

for which device this parameter shows a result?
I try this, but I don' see a effect..

Joachim

[domjancik]

I've tried it with the TRADFRI E27 600lm color bulb.

The parameter doesn't do anything in itself, it just sets the duration it will take the light to get to the setting you send along with it (brigthness, hex or xy color, ...).

For example, the following command changes the bulb to medium brightness immediately:
coap-client -m put -u "$TF_USERNAME" -k "$TF_PRESHARED_KEY" -e '{ "3311": [{ "5851": 127 }] }' "coaps://$TF_GATEWAYIP:5684/15001/$TF_DEVICEID"

Whereas adding the transition time parameter will result in the bulb fading smoothly into the new value:
coap-client -m put -u "$TF_USERNAME" -k "$TF_PRESHARED_KEY" -e '{ "3311": [{ "5851": 127, "5712": 10 }] }' "coaps://$TF_GATEWAYIP:5684/15001/$TF_DEVICEID"

From my observation the unit seems to be a 1/10 of a second.

[glenndehaan]

Hi @dominikjancik,

Thats indeed the intended use case.
Just sending the fade time will indeed do nothing.

Now the float value worked in the previous version of the hub firmware.
But is is possible that they changed this back to just an int.

I will update the documentation. Tnx for your feedback.