Smart Home Integration Guide

Smart Home Integration Guide

Connecting PDLC smart film to a smart-home system gives you voice control, automated schedules, and scene-based routines — "Alexa, privacy on" or a bedtime routine that frosts all partitions automatically. This guide covers the control methods, wiring requirements, and practical scene design for elevatoX smart film with Apple HomeKit, Google Home, and Amazon Alexa.

Control Method Options

Smart film can be controlled through several methods, each building on the previous:

1. Wall switch: Basic on/off toggle connected to the transformer. The simplest and most reliable control. No smart-home integration.
2. RF remote: Radio-frequency remote control for switching without physical access to the switch. Range is typically 20–30 m through walls. No smart-home integration.
3. Wi-Fi touch panel: In-wall or desktop touch panel with scheduling, timer, and scene control via a companion app. This is the entry point for smart-home integration — the panel connects to your home Wi-Fi network.
4. Smart-home bridge: Dedicated bridge device that connects the film's transformer circuit to Apple HomeKit, Google Home, and Amazon Alexa. The bridge receives commands from the smart-home platform and switches the transformer output. This is the recommended method for full integration.

Wiring for Smart-Home Control

Smart-home control adds a communication layer on top of the standard PDLC wiring:

• Power wiring remains the same: Transformer steps mains to 48–65V AC, film connects to transformer output. The smart-home bridge does not change the power path — it switches the transformer input or output.
• Bridge power: The smart-home bridge needs its own 5V DC or 12V DC power supply, typically from a USB adapter or the transformer's auxiliary output.
• Communication: The bridge connects to your Wi-Fi network (2.4 GHz for most devices). Ensure reliable Wi-Fi coverage at the installation location — bridges far from the router may need a Wi-Fi repeater.
• Multi-zone wiring: For multiple film zones on separate transformers, each zone needs its own bridge channel. A single bridge device typically supports 2–4 zones. Additional zones require additional bridges or a multi-channel controller.

Setting Up Voice Control

Apple HomeKit:

1. Add the bridge in the Home app by scanning its HomeKit code or searching for nearby accessories.
2. Assign the film to a room and give it a descriptive name (e.g., "Office Partition").
3. Create automations: "When I leave home" → set film to frosted. "Good morning" → set film to clear.
4. Siri voice control: "Hey Siri, turn on Office Partition" (clear) or "turn off" (frosted).

Google Home:

1. Link the bridge in the Google Home app under Devices → Works with Google.
2. Assign to a room and create routines in the Automations tab.
3. Google Assistant voice control: "Hey Google, turn on Office Partition" or "set Office Partition to frosted".

Amazon Alexa:

1. Enable the bridge's Alexa skill and discover devices.
2. Create groups and routines in the Alexa app.
3. Alexa voice control: "Alexa, turn on Office Partition" or "Alexa, set Office Partition to privacy".

Practical Scene Design

• Morning routine: Clear all partitions at sunrise or a fixed time (e.g., 7:00 AM) for maximum daylight. This is the most common automation.
• Meeting mode: Frost the conference room partition and dim the lights with a single voice command or button press. Combine film switching with lighting and shade control for a complete scene.
• Privacy at bedtime: Frost all bedroom and bathroom partitions at a set time. Power draw is 0 W in the frosted state, so this runs free overnight.
• Occupancy-based: Use a motion sensor or door-magnetic sensor to frost the partition when someone enters and clear it when the room is empty. This is effective for bathrooms and consultation rooms.
• Geofencing: Frost all partitions when the last person leaves home (detected by phone location). Clear when someone returns.

Common Pitfalls

• Wi-Fi dead zones: The bridge must have reliable 2.4 GHz Wi-Fi. Test coverage before installation. Smart-home bridges far from the router are the most common source of unreliable switching.
• Incorrect device naming: Name each film zone clearly in the smart-home app (e.g., "Meeting Room Partition", not "Switch 3"). Poor naming leads to voice command failures.
• Overlapping automations: If both a schedule and a sensor try to control the same zone simultaneously, conflicts occur. Design automations with clear priority — sensor overrides schedule, manual control overrides both.
• Power draw assumption: Smart film in the frosted state draws 0 W. In the clear state, it draws about 3.7 W/m². Smart-home energy monitoring may report this as a small continuous load — do not mistake it for a malfunction.

FAQ

Can I control smart film from my phone without a smart-home system? Yes, the Wi-Fi touch panel includes a companion app that works independently of HomeKit/Alexa/Google Home. You get scheduling and remote switching without setting up a full smart-home integration.

Does smart film work with Home Assistant or other platforms? The Wi-Fi bridge exposes standard on/off control. Platforms that support Wi-Fi or HTTP-based switches can integrate with the bridge. Home Assistant users can configure a REST switch or MQTT integration depending on the bridge protocol.

What happens if Wi-Fi goes down? The film continues to operate in its last state (clear or frosted). The physical wall switch always works independently of Wi-Fi. When Wi-Fi reconnects, the bridge syncs state with the smart-home platform.

Can I group smart film with other devices? Yes. In HomeKit, create a scene that includes the film, lights, and shades. In Alexa, create a routine with multiple device actions. In Google Home, combine devices in an automation. This is the most powerful use case — a single command that sets the entire room.

Next Steps

Review control options on the PDLC film product page, plan your wiring with the wiring simulator, and request a quote with your preferred control method specified.