Hello everyone!
I recently upgraded my Zigbee coordinator from a Conbee II to a dual-protocol system using an SMLIGHT SLZB (-MR4U for me).
I needed a dedicated card to clearly visualize and monitor all entities related to this device in my Homelab dashboard. Since I couldn’t find a comprehensive solution on the forums, I decided to build my own:
I designed it to be as dynamic as possible. Here is a breakdown of the features:
1. Header & Connectivity Status
- Identity: Displays the specific model name.
- Connection Mode: Dynamically shows if the device is communicating via Ethernet or Wi-Fi.
- Internet Status: A binary check displays “Internet OK” or “Local”.
- Visual Indicator: The router icon turns Green when the network is up, and Red otherwise.
2. Quick Status Bar (Chips)
- Chip Modes: Real-time display of active protocols on Chip 1 (EFR32) and Chip 2 (CC2652) (e.g., Coordinator, Thread, Router).
- Uptime: Calculates how many days and hours the system has been running since the last reboot.
- VPN Status: Shows if the secure tunnel is active with color coding (Blue/Grey).
3. Thermal Monitoring (Triple Core)
- Time Visualization: A
mini-graph-carddisplays the 24-hour history for all three components. - Detailed Chips: Three individual cards show precise temperatures for the ESP32 (Core), Zigbee/Thread Chip 1, and Zigbee/Thread Chip 2. Card names change dynamically based on the current protocol in use.
4. Memory & Storage Management
- FileSystem Usage: Monitors flash memory occupancy (system files).
- Memory Usage: Displays RAM usage in kilobytes (kB).
- Load Graph: Helps visually detect potential memory leaks or saturated storage.
5. Maintenance Center & Actions
- Smart Updates: Three conditional blocks appear only when a new firmware is available for the Core or radio chips, offering a direct “Install” button. (Note: Behavior to be confirmed with the next firmware release).
- Hardware Controls:
- Reset SLZB-MR4U: Full device reboot (Hard Reset).
- Reset Radio: Software restart of communication chips without dropping the network connection.
- Flash Mode: Toggles chips into programming mode (requires confirmation).
- Comfort Settings: LED Night Mode management, total LED toggle, and Zigbee firmware auto-update toggle.
This card can be easily adapted whether you have a single-chip or a multi-protocol model.
Required Frontend Integrations (HACS):
To make this card work, you will need the following custom cards installed:
stack-in-card: To group everything into a single seamless block.mushroom-cards: For the overall aesthetic (Template, Chips, Update cards).mini-graph-card: For the temperature and memory history graphs.config-template-card: Crucial. This allows the use of JavaScript (${...}) to render dynamic chip names within the graphs.card-mod(Optional but recommended): For fine-tuning margins or colors.
The YAML Code:
type: custom:config-template-card
entities:
- sensor.slzb_mr4u_zigbee_type
- sensor.slzb_mr4u_zigbee_type_2
card:
type: custom:stack-in-card
cards:
- type: custom:mushroom-template-card
primary: SLZB-MR4U
secondary: >
mode: {{ states('sensor.slzb_mr4u_connection_mode') }} | {{ 'Internet
OK' if is_state('binary_sensor.slzb_mr4u_internet', 'on') else 'Local'
}}
icon: mdi:router-wireless
icon_color: >
{{ 'green' if is_state('binary_sensor.slzb_mr4u_ethernet', 'on') or
is_state('binary_sensor.slzb_mr4u_wi_fi', 'on') else 'red' }}
fill_container: true
- type: custom:mushroom-chips-card
chips:
- type: template
icon: mdi:antenna
content: "EFR32: {{ states('sensor.slzb_mr4u_zigbee_type') }}"
icon_color: "#0051FF"
- type: template
icon: mdi:antenna
content: "CC26: {{ states('sensor.slzb_mr4u_zigbee_type_2') }}"
icon_color: amber
- type: template
icon: mdi:clock-outline
content: >
{% set uptime = states('sensor.slzb_mr4u_core_uptime') %} {% if
uptime not in ['unknown', 'unavailable', 'none'] %}
{% set delta = now() - as_datetime(uptime) %}
{{ delta.days }}j {{ (delta.seconds // 3600) }}h
{% else %} ??? {% endif %}
- type: template
icon: mdi:vpn
content: "VPN: {{states('binary_sensor.slzb_mr4u_vpn')}}"
icon_color: >-
{{ 'blue' if is_state('binary_sensor.slzb_mr4u_vpn', 'on') else
'grey' }}
alignment: center
- type: custom:mushroom-title-card
subtitle: Temperature
- type: horizontal-stack
cards:
- type: custom:mushroom-template-card
entity: sensor.slzb_mr4u_temperature_de_la_puce_principale
primary: Core SLZB-MR4U
secondary: "{{ states(entity) }} °C"
icon: mdi:thermometer
icon_color: "#ECFA8E"
tap_action:
action: more-info
- type: custom:mushroom-template-card
entity: sensor.slzb_mr4u_temperature_de_la_puce_zigbee
primary: Temp. {{ states('sensor.slzb_mr4u_zigbee_type') }}
secondary: "{{ states(entity) }} °C"
icon: mdi:thermometer
icon_color: "#0051FF"
tap_action:
action: more-info
- type: custom:mushroom-template-card
entity: sensor.slzb_mr4u_temperature_de_la_puce_zigbee_2
primary: Temp. {{ states('sensor.slzb_mr4u_zigbee_type_2') }}
secondary: "{{ states(entity) }} °C"
icon: mdi:thermometer
icon_color: "#FFC107"
tap_action:
action: more-info
- type: custom:mini-graph-card
entities:
- entity: sensor.slzb_mr4u_temperature_de_la_puce_principale
name: Core
color: "#ECFA8E"
- entity: sensor.slzb_mr4u_temperature_de_la_puce_zigbee
name: ${states['sensor.slzb_mr4u_zigbee_type'].state}
color: "#0051FF"
- entity: sensor.slzb_mr4u_temperature_de_la_puce_zigbee_2
name: ${states['sensor.slzb_mr4u_zigbee_type_2'].state}
color: "#FFC107"
line_width: 2
height: 60
hours_to_show: 24
align_state: left
show:
icon: false
legend: true
state: false
name: false
- type: custom:mushroom-title-card
subtitle: Memory
- type: horizontal-stack
cards:
- type: custom:mushroom-template-card
entity: sensor.slzb_mr4u_filesystem_usage
primary: FileSystem Usage
secondary: "{{ states('sensor.slzb_mr4u_filesystem_usage') }} kB"
icon: mdi:harddisk
icon_color: "#3498db"
tap_action:
action: more-info
- type: custom:mushroom-template-card
entity: sensor.slzb_mr4u_utilisation_de_la_memoire
primary: Utilisation Mémoire
secondary: "{{ states('sensor.slzb_mr4u_utilisation_de_la_memoire') }} kB"
icon: mdi:database
icon_color: "#9b59b6"
tap_action:
action: more-info
- type: custom:mini-graph-card
entities:
- entity: sensor.slzb_mr4u_filesystem_usage
name: FileSystem Usage
color: "#3498db"
- entity: sensor.slzb_mr4u_utilisation_de_la_memoire
name: Utilisation Mémoire
color: "#9b59b6"
line_width: 2
height: 40
hours_to_show: 24
align_state: left
show:
icon: false
legend: false
state: false
name: false
- type: custom:mushroom-title-card
subtitle: Action
- type: conditional
conditions:
- entity: update.slzb_mr4u_core_firmware
state: "on"
card:
type: custom:mushroom-update-card
entity: update.slzb_mr4u_core_firmware
name: MAJ Core
show_buttons_control: true
- type: conditional
conditions:
- entity: update.slzb_mr4u_zigbee_firmware
state: "on"
card:
type: custom:mushroom-update-card
entity: update.slzb_mr4u_zigbee_firmware
name: MAJ {states['sensor.slzb_mr4u_zigbee_type'].state}
show_buttons_control: true
- type: conditional
conditions:
- entity: update.slzb_mr4u_zigbee_firmware_2
state: "on"
card:
type: custom:mushroom-update-card
entity: update.slzb_mr4u_zigbee_firmware_2
name: MAJ {states['sensor.slzb_mr4u_zigbee_type_2'].state}
show_buttons_control: true
- type: horizontal-stack
cards:
- type: custom:mushroom-template-card
primary: Reset SLZB-MR4U
icon: mdi:cog-refresh
icon_color: red
layout: vertical
tap_action:
action: call-service
service: button.press
target:
entity_id: button.slzb_mr4u_core_restart
- type: custom:mushroom-template-card
primary: Reset Radio
icon: mdi:wifi-refresh
icon_color: amber
layout: vertical
tap_action:
action: call-service
service: button.press
target:
entity_id: button.slzb_mr4u_zigbee_restart
- type: custom:mushroom-template-card
primary: Flash Mode
icon: mdi:memory-arrow-down
icon_color: blue
layout: vertical
tap_action:
action: call-service
service: button.press
target:
entity_id: button.slzb_mr4u_zigbee_flash_mode
- type: horizontal-stack
cards:
- type: custom:mushroom-entity-card
entity: switch.slzb_mr4u_led_night_mode
name: Nuit
- type: custom:mushroom-entity-card
entity: switch.slzb_mr4u_disable_leds
name: LEDs Off
- type: custom:mushroom-entity-card
entity: switch.slzb_mr4u_auto_zigbee_update
name: Auto-Up
icon: mdi:refresh-auto
This is my very first post!
I am open to suggestions and eager to improve, so please don’t hesitate to share your feedback, ideas for further enhancements, or even your own versions of this card.
I look forward to seeing how you use it!
, French 
, and Italian 
.