Simple little automation to allow the ShortCut Button from Ikea 
(through deCONZ) take control of RGB 
(well HSV) light(s). The automation allows for 4 different types of interactions, based on the button press (short/long) and the (first) lights state as shown below:
- Light is Off
- short press: light turns on
- long (hold) press: slowly (~4sec) raise the brightness of the light until 100%
- Light is On
- short press: light turns off
- long (hold) press: cycle through the Hue (of HSV) of the light. (~10.8sec for full cycle)
Multiple lights are configurable, but the first one is where the current brightness / hue value is taken from. All the lights need to support the ‘hs’ colour mode (I’m using LIFX lights).
Based on the Tradfri on/off button,
# Copyright (c) 2022, Matthew Tilney
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blueprint:
name: DeconZ Ikea Button RGB Light
description: >
Interface an Ikea Zigbee Button switch via DeconZ to provide simple control of light(s) with RGB
Lightoff:
- short press = turn off
- long (hold) = cycle through the Hue (of HSV) of the light. (~10.8sec for full cycle)
Lighton:
- shor press = turn on
- long (hold) = slowly raise the brightness up (until the value you desire or 100%)
domain: automation
input:
remote:
name: Remote
description: The Ikea Button remote control from Deconz
selector:
device:
integration: deconz
manufacturer: IKEA of Sweden
model: TRADFRI SHORTCUT Button
light:
name: Light
description: The RGB light(s) that will be controlled
selector:
target:
entity:
domain: light
mode: restart
trigger:
- platform: event
event_type: deconz_event
event_data:
device_id: !input 'remote'
variables:
lights: !input 'light'
action:
- variables:
event: '{{ trigger.event.data.event }}'
# if on: short press=off, long press cycle HS colour
# if off: short press=on, long press on* increase brightness
- service: system_log.write
data:
level: warning
message: '
{{lights}}
{{lights.entity_id[0]}}
That was the Lights (up)
#######################
Current Colour: {% if is_state(lights.entity_id[0],"on")%}{{(state_attr(lights.entity_id[0],"hs_color")[0] + 10) % 360}}{% endif %}
#######################
'
logger: scripts.log
- if:
# for version 1: only checking the first light in the list, assumged (for initial setup, to only be a single light)
- condition: template
value_template: >
{{is_state(lights.entity_id[0],'off')}}
then:
- choose:
- conditions:
- '{{ event == 1002 }}'
sequence:
- service: light.turn_on
target: !input 'light'
data:
transition: 1
- conditions:
- '{{ event == 1001 }}'
sequence:
repeat:
while:
- condition: template
value_template: '{{ repeat.index < 10 }}'
sequence:
- service: light.turn_on
target: !input 'light'
data:
transition: 1
brightness_step_pct: 10
- delay:
hours: 0
minutes: 0
seconds: 0
milliseconds: 297
- conditions:
- '{{ event == 1003 }}'
sequence:
- service: light.turn_on
target: !input 'light'
else:
- choose:
- conditions:
- '{{ event == 1002 }}'
sequence:
- service: light.turn_off
target: !input 'light'
data:
transition: 1
- conditions:
- '{{ event == 1001 }}'
sequence:
repeat:
while:
- condition: template
value_template: '{{ is_state(lights.entity_id[0],"on") }}'
sequence:
- service: light.turn_on
target: !input 'light'
data:
hs_color:
- '{{ (state_attr(lights.entity_id[0],"hs_color")[0] + 10) % 360}}'
- 100
transition: 0.28
- delay:
hours: 0
minutes: 0
seconds: 0
milliseconds: 297
- conditions:
- '{{ event == 1003 }}'
sequence:
- service: light.turn_on
target: !input 'light'