2 bulbs, 1 button. Cycle trough all combinations, how?

Configuration
1

Help,

I have 2 lightbublbs and one button.
With every single_click, I want to cycle through following 4 combinations

L1  L2
----------
off off
on  off
off on
on  on

Can somebody help me with this setup in hass?
Where should I start?
New to home assistant, so a newbie level will be appreciated :slight_smile:

kind regards,
Bart

2

I don’t know what you are using to detect the single-click so I’ve skipped that part (trigger) in the automation. Here’s my suggestion for the action:

  action:
  - service: light.toggle
    entity_id: light.l1

  - service_template: >
      {% set L2 = 1 if is_state('light.l2', 'on') else 0 %}
      {% set L1 = 1 if is_state('light.l1', 'on') else 0 %}
      {% set n = (L2 * 2) + L1 + 1 %}
      {% set next = 0 if n > 3 else n %}
      light.turn_{{'on' if next > 1 else 'off'}}
      entity_id: light.l2

Here is the result of swapping your table’s two columns:

L2  L1
----------
off  off      0 0    zero 
off  on       0 1    one
on   off      1 0    two
on   on       1 1    three

The sequence is counting from zero to three in binary.

  • L1 is easy to control because all we need to do is toggle its state.
  • L2 is a bit more challenging. We need to calculate the binary number. If it is greater than 1 then it needs to be turned on, else it is turned off.
3

Cool!

I solved it differently:
I created 4 scenes

# -------------------------------------------
  - name: Lamp Peter Frans s1
    entities:
      light.Lamp_Peter_Frans_01: off
      light.Lamp_Peter_Frans_02: off
  - name: Lamp Peter Frans s2
    entities:
      light.Lamp_Peter_Frans_01: off
      light.Lamp_Peter_Frans_02: on
  - name: Lamp Peter Frans s3
    entities:
      light.Lamp_Peter_Frans_01: on
      light.Lamp_Peter_Frans_02: off
  - name: Lamp Peter Frans s4
    entities:
      light.Lamp_Peter_Frans_01: on
      light.Lamp_Peter_Frans_02: on

An input select

# ===============================================
# INPUT_SELECT
# ===============================================

input_select:
  lamp_peter_frans:
    name: Light Mode
    options:
      - scene 1
      - scene 2
      - scene 3
      - scene 4
    initial: scene 1
    icon: mdi:format-list-bulleted

And an automation:


# ==================================================
# VERSCHILLENDE AUTOMATIONS VOOR DE LAMP VAN PETER FRANS
# ==================================================
# De waarde van de input_select bepaalt welke scene wordt uitgevoerd
# Onderaan de automatisatie die door de waarden van de input_select cyclet  

# -------------------------------------------
- alias: Lamp_Peter_Frans_s1
  trigger:
  - platform: state
    entity_id: input_select.lamp_peter_frans
    to: scene 1
  action:
    entity_id: scene.Lamp_Peter_Frans_s1
    service: scene.turn_on

# -------------------------------------------
- alias: Lamp_Peter_Frans_s2
  trigger:
  - platform: state
    entity_id: input_select.lamp_peter_frans
    to: scene 2
  action:
    entity_id: scene.Lamp_Peter_Frans_s2
    service: scene.turn_on

# -------------------------------------------
- alias: Lamp_Peter_Frans_s3
  trigger:
  - platform: state
    entity_id: input_select.lamp_peter_frans
    to: scene 3
  action:
    entity_id: scene.Lamp_Peter_Frans_s3
    service: scene.turn_on

# -------------------------------------------
- alias: Lamp_Peter_Frans_s4
  trigger:
  - platform: state
    entity_id: input_select.lamp_peter_frans
    to: scene 4
  action:
    entity_id: scene.Lamp_Peter_Frans_s4
    service: scene.turn_on

wich is triggerd by another automation:


# ==================================================
# GLOBALE TRIGGER: XIAOMI SWITCH S03
# ==================================================
# door op de rechterknop te klikken
# doorloop je alle mogelijke combinaties van de lamp

- id: '0x00158d0002f38837_click_right'
  alias: '(S03) Switch MQTT button click: right'
  trigger:
  - platform: mqtt
    topic: zigbee2mqtt/0x00158d0002f38837
  condition:
  - condition: template
    value_template: '{{ "right" == trigger.payload_json.click}}'
  action:
    entity_id: input_select.lamp_peter_frans
    service: input_select.select_next

For me it feels more “natural” and working with scenes and gives more flexibility.

What do you think? What is a best practice?

kind regards,
Bart

4

Go with whatever works best for you. Your solution requires:

  1. input_select
  2. scenes
  3. automation

The solution I offered requires one automation. Here it is again using the added information you provided regarding the source of the trigger:

- id: '0x00158d0002f38837_click_right'
  alias: '(S03) Switch MQTT button click: right'
  trigger:
  - platform: mqtt
    topic: zigbee2mqtt/0x00158d0002f38837
  condition:
  - condition: template
    value_template: '{{ "right" == trigger.payload_json.click}}'
  action:
  - service: light.toggle
    entity_id: light.lamp_peter_frans_01
  - service_template: >
      {% set l2 = 1 if is_state('light.lamp_peter_frans_02', 'on') else 0 %}
      {% set l1 = 1 if is_state('light.lamp_peter_frans_01', 'on') else 0 %}
      {% set n = (l2 * 2) + l1 + 1 %}
      {% set next = 0 if n > 3 else n %}
      light.turn_{{'on' if next > 1 else 'off'}}
    entity_id: light.lamp_peter_frans_02