Multi Air Conditioner Card
Not just a UI — a complete multi-room HVAC control system for Home Assistant
Meet Multi Air Conditioner Card — a next-generation Lovelace card designed to behave like a real-world HVAC system, not just a dashboard widget.
Built from the ground up with performance, UX, and real automation logic in mind.
True Multi-Room Architecture (Not Just Tabs)
Control up to 8 rooms simultaneously, each fully independent:
• Temperature & humidity
• Power consumption
• HVAC modes & fan/swing logic
• Timers & runtime state
This card doesn’t just display rooms — it thinks per room.
3 Interfaces in 1 Card — Fully Synced
Switch instantly between 3 modes depending on your use case:
• Full Mode → Rich UI, full monitoring & control
• Lite Mode → Clean, faster interaction
• Super Lite → Ultra-minimal, mobile-first
All modes share the same state & logic → no desync, no reload needed
Smart Behavior That Feels “Alive”
Designed to behave like a real system, not a static UI:
• Remembers last active room (even after reload)
• Restores previous HVAC state automatically
• Skips offline/unavailable devices intelligently
• Auto-recovers instantly when devices come back online
• “Turn All Off” only affects available devices
Real-Time Monitoring & Fault Handling
• Visual OFFLINE detection across all UI modes
• Disabled controls when device is unavailable
• Instant recovery without reload
• Consistent behavior across Full / Lite / Super Lite
Advanced HVAC Control
Per-room full control:
• Cool / Heat / Dry / Fan modes
• Temperature adjustment
• Fan speed cycling (Auto → High)
• Swing / airflow direction (auto-detect supported modes)
Includes animated feedback system with particle effects per HVAC mode.
Real Environment Integration
Each room supports:
• Temperature sensor override
• Humidity sensor
• Power consumption tracking
Plus global sensors:
• Outdoor temperature
• Humidity
• PM2.5 (air quality)
Persistent Timer System (Not Just UI)
• Schedule ON/OFF with minute precision
• Independent timers per room
• Countdown display in real-time
• Survives reload (stored in localStorage)
Advanced UI/UX Engineering
• Auto-scale layout (mobile & desktop perfect)
• Gradient themes + custom color system
• Animated temperature dial with dual-layer logic
• Smooth transitions & interaction feedback
• Super Lite popup effects (Normal / Effect / Wave)
Multi-language Support (11 languages)
Tiếng Việt / 
English / 
Deutsch / 
Français / 
Nederlands
Polski / 
Svenska / 
Magyar / 
Čeština / 
Italiano / 
Português
Real country flags in selector
Fully localized UI
Deep Customization
• Colors, gradients, themes
• Toggle any UI element on/off
• Flexible layout per mode
• Works with any climate entity
• No dependencies — fully standalone
Installation
HACS (Recommended)
- Add custom repository:
GitHub - doanlong1412/Multi-Air-Conditioner-Card · GitHub - Install via HACS → Frontend
- Reload browser
Manual
url: /local/multi-air-conditioner-card.js
type: module
⚙️ Basic Usage
type: custom:multi-air-conditioner-card
entities:
- climate.living_room
- climate.bedroom
📸 Preview
🎬 Demo:
https://github.com/doanlong1412/Multi-Air-Conditioner-Card/blob/3ea69a0e89b393b2383f337a477b627a970a8f8a/assets/preview.gif
🖼️ Screenshot:
https://github.com/doanlong1412/Multi-Air-Conditioner-Card/blob/3ea69a0e89b393b2383f337a477b627a970a8f8a/assets/preview.png
🔗 GitHub
https://github.com/doanlong1412/Multi-Air-Conditioner-Card
⭐ Support
If you find this useful, please give it a star on GitHub — it helps the project grow.
❤️ Future Development
More advanced features are coming:
• Smarter automation logic
• Better central AC support
• Performance optimizations
• More UI modes
Feedback, ideas, and issues are always welcome!