Just bought one of these Rotary switches to play with from Ali Express, £5
https://www.aliexpress.com/item/1005006765315209.html?spm=a2g0o.order_list.order_list_main.137.2e951802qeg2jv
I’ve integrated it into my Zigbe2MQTT setup…installs as Tuya ERS-10TZBVK-AA.
I wanted to be able to control an RGB light locally therefore used via Home Assistant and manual control rather than relying on the cloud Tuya.
Anyway it is set up as follows:-
single press – on
double press – off
Long press change mode
turn right – mode1 move forwards through colours
turn left – mode1 move backwards though colours
turn right – mode2 increase brightness
turn left – mode2 decrease brightness
All sounds so simple, but i struggled with the coding (certainly no coder – too old!)…therefore with the help from ChatGPT I got it working as required, here is the code if it helps anyone else…have fun.
Automation:-
alias: Upgraded Rotary Control - Faster Brightness Control
# 📌 Trigger: Listens for MQTT messages from the Rotary Button
triggers:
- topic: zigbee2mqtt/Rotary Button/action
trigger: mqtt
actions:
- choose:
# 🟢 Single Press → Turns the light ON
- conditions:
- condition: template
value_template: "{{ trigger.payload == 'single' }}"
sequence:
- target:
entity_id: light.dining_room
action: light.turn_on
data: {}
# 🔴 Double Press → Turns the light OFF
- conditions:
- condition: template
value_template: "{{ trigger.payload == 'double' }}"
sequence:
- target:
entity_id: light.dining_room
action: light.turn_off
data: {}
# 🔄 Long Press → Toggles between Brightness Mode & Color Mode
- conditions:
- condition: template
value_template: "{{ trigger.payload == 'hold' }}"
sequence:
- target:
entity_id: input_boolean.rotary_button_mode
action: input_boolean.toggle
data: {}
# 🔵 Rotate Right → Adjusts brightness (if in brightness mode) or cycles colors forward (if in color mode)
- conditions:
- condition: template
value_template: "{{ trigger.payload == 'rotate_right' }}"
sequence:
- choose:
# ✨ Brightness Mode (rotary_button_mode OFF): Increase brightness in steps of 50
- conditions:
- condition: state
entity_id: input_boolean.rotary_button_mode
state: "off"
sequence:
- variables:
current_brightness: >-
{{ state_attr('light.dining_room', 'brightness') | default(255) }}
max_brightness: 255
step: 50
- target:
entity_id: light.dining_room
data:
brightness: "{{ [current_brightness + step, max_brightness] | min }}"
action: light.turn_on
- delay: "00:00:01"
# 🎨 Color Mode (rotary_button_mode ON): Cycle colors forward
- conditions:
- condition: state
entity_id: input_boolean.rotary_button_mode
state: "on"
sequence:
- variables:
colors: >-
{{ [[255,0,0], [0,255,0], [0,0,255], [255,255,0], [255,0,255], [0,255,255]] }}
current_color: >-
{{ state_attr('light.dining_room', 'rgb_color') | default([255,0,0]) }}
current_color_fixed: "{{ current_color | list }}"
index: "{{ colors.index(current_color_fixed) if current_color_fixed in colors else 0 }}"
new_color: "{{ colors[(index + 1) % colors | length] }}"
- target:
entity_id: light.dining_room
data:
brightness: 255
rgb_color: "{{ new_color }}"
action: light.turn_on
- delay: "00:00:01"
# 🔴 Rotate Left → Adjusts brightness (if in brightness mode) or cycles colors backward (if in color mode)
- conditions:
- condition: template
value_template: "{{ trigger.payload == 'rotate_left' }}"
sequence:
- choose:
# ✨ Brightness Mode (rotary_button_mode OFF): Decrease brightness in steps of 50
- conditions:
- condition: state
entity_id: input_boolean.rotary_button_mode
state: "off"
sequence:
- variables:
current_brightness: >-
{{ state_attr('light.dining_room', 'brightness') | default(255) }}
min_brightness: 25
step: 50
- target:
entity_id: light.dining_room
data:
brightness: "{{ [current_brightness - step, min_brightness] | max }}"
action: light.turn_on
- delay: "00:00:01"
# 🎨 Color Mode (rotary_button_mode ON): Cycle colors backward
- conditions:
- condition: state
entity_id: input_boolean.rotary_button_mode
state: "on"
sequence:
- variables:
colors: >-
{{ [[255,0,0], [0,255,0], [0,0,255], [255,255,0], [255,0,255], [0,255,255]] }}
current_color: >-
{{ state_attr('light.dining_room', 'rgb_color') | default([255,0,0]) }}
current_color_fixed: "{{ current_color | list }}"
index: "{{ colors.index(current_color_fixed) if current_color_fixed in colors else 0 }}"
new_color: "{{ colors[(index - 1) % colors | length] }}"
- target:
entity_id: light.dining_room
data:
brightness: 255
rgb_color: "{{ new_color }}"
action: light.turn_on
- delay: "00:00:01"
mode: restart # Ensures that rapid rotations don't conflict with each other
Had to also create a helper :-
- alias: "Rotary Button Mode Toggle"
trigger:
- platform: mqtt
topic: "zigbee2mqtt/Rotary Button/action"
payload: "hold"
action:
- service: input_boolean.toggle
entity_id: input_boolean.rotary_color_mode
or
if you prefer not to edit YAML, you can create this helper in the UI:
Go to 
Settings → Devices & Services → Helpers
Click 
Create Helper
Select “Toggle”
Enter:
- Name:
Rotary Color Mode - Entity ID:
input_boolean.rotary_color_mode - Icon:
mdi:palette
Click “Create” 
Have fun I know I did, Using ChatGPT is fantastic, there is no way I could have coded this…Have fun.