Turn your tablet into the ultimate control panel for your smart home

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If you have a tablet sitting in a drawer for years, you don't actually have a useless piece of junk: you have something special in your hands. a perfect control panel for home automation Waiting for you to get the most out of it. With a few apps, some setup, and decent support, you can create a kind of DIY Nest Hub without spending your entire paycheck on a new screen.

The best part is that, with a little ingenuity, that old tablet can be transformed into home automation center, multimedia remote, digital photo frame and even Bluetooth gatewayWhether it's a modest Android or a veteran iPad, if it still turns on, it can probably be used to control lights, plugs, cameras, speakers, and much more from a single fixed point in your home.

Choosing the perfect location, stand, and power supply for your tablet panel

Before you start installing apps, you should think about where you're going to place the tablet so that it works as fixed control panel, always accessible and connected to the power supply and with a good Wi‑Fi networkThe best places are usually the living room, a central hallway, the kitchen or the entrance, places you pass through often and from where the voice assistant can hear you well.

Keep in mind that your home automation "control center" will have to to be plugged in almost all the time so as not to run out of batterySo you need to decide whether you prefer a wall mount or placing it on a piece of furniture. Depending on your choice, the type of stand, the viewing angle, and how you'll conceal the charging cable so it doesn't dangle will all change.

If you fancy something cleaner and more definitive, the Wall mounts specifically designed for tablets are the most elegant optionThere are simple screw-on models, articulated arms for rotating the screen, and even magnetic bases. Basic models usually cost between 20 and 30 euros, with the price going up if you want something very robust or with a photo frame-like design.

If you don't fancy drilling into walls or want to be able to move the tablet, you can always use desktop tablet stands or repurpose a sturdy mobile phone standThere are inexpensive folding stands, clamp-style arms for tables, and heavy-duty supports that stay put when you touch the screen. Many models designed for mobile phones fit mid-sized tablets without issue.

Whatever the solution, make sure the stand holds the tablet in a comfortable angle to glance at it and be able to touch it without contorting yourselfand that allows you to connect the charger without damaging the connector. If you're going to use it daily as a touch controller, it's very helpful that it's stable and easily accessible.

Adjust the screen: brightness, time out, and "always on" modes

Once the location is decided, it's time to adjust the screen settings so that your tablet works well as visible control panel that is not obtrusive or prone to burnsThe idea here is to balance consumption, convenience, and panel lifespan, especially if you plan to leave it on for many hours.

On Android, go to Display settings and check the waiting time before the screen turns offSome tablets allow you to leave the screen on indefinitely, while others have a limit of about 30 minutes. If you don't see the "never" option, you can use apps like Caffeine to force the screen to stay on while the panel is in use.

Brightness also matters: a medium-low level is usually enough for the screen to be visible indoors and It doesn't dazzle at night or drain the battery.If your tablet has automatic brightness, that might work, but since it's always in the same place, it's often better to manually set it to a comfortable level.

Even if you configure everything to keep the screen on, remember that you can always Turn it off and turn it on with the physical button when you leave home or go to sleepIt's the easiest way to extend the panel's lifespan and consume less energy, without sacrificing having a control center ready when you need it.

On many Android tablets from a few years ago you will still find the Google Assistant's ambient mode, designed precisely for this type of useIt's a bit outdated and no longer appears on all models, but if your device has it, it's worth taking advantage of: it keeps the screen at low brightness, rotates the content to avoid burn-in, and displays useful information.

From the Google app, in Settings > Ambient mode, you can decide if you want them to be visible. the time, the weather, your upcoming events, or information cardsand also enable it to display Google Photos albums. This way, the tablet can act as a digital photo frame with personal images when you're not using it for home automation.

Another advantage of ambient mode is that it usually leaves the device listening to “Hey Google” or “Ok Google” while at restReady to react without touching anything. It's a very similar experience to a Nest Hub, but repurposing a tablet you already have at home.

Configure voice recognition: Hey Google and Siri well trained

If you want to use your tablet as a pseudo smart speaker with a screen, it's key that Make sure your voice assistant is properly configured to recognize your commands.This involves activating the wake phrase, training your voice, and checking how it behaves with the screen off.

On an Android tablet, everything is controlled from the Google app, where you can learn Google Home commandsOpen the app, tap on your profile (or home) picture, and enter Settings > Google Assistant > “Hey Google and Voice Match”There you'll see the main switch to activate "Hey Google" listening, which must be turned on if you want to use your voice hands-free.

By activating that switch, the system will ask you to repeat several phrases to create a Voice Match model adapted to your voiceThis helps the assistant respond better to you and not just anyone else. If the same account has been used by several family members over time, or you notice that it no longer understands you well, you can tap the option to retrain the model and start from scratch.

That same screen usually indicates whether the device is capable of Listen to “Hey Google” with the screen off or only when it is onOn older tablets, it usually only works with the screen active, so you'll have to decide whether to keep it on with ambient mode, use a screensaver with controls, or use more manual activation methods.

If you're repurposing an iPad, Siri will be in charge. You can find it in Settings > Siri & Search. Enable the "Hey Siri" command and repeat the voice training process.A useful trick is to turn off "Listen to 'Hey Siri'" and turn it back on to force the system to ask you to repeat phrases and improve accuracy from where you have the tablet placed.

Activate the assistant without it always listening

Not everyone is comfortable with a microphone constantly monitoring them, and some older devices... They can't stand hearing "Hey Google" constantly.Even so, you can use the assistant quite comfortably by using touch shortcuts and gestures.

The most classic solution is to place it on the home screen. a large shortcut to open the Assistant, the Google app, or SiriYou tap the icon, the interface opens, and from there you press the microphone button to speak. It's a tad less magical than waking the assistant with your voice, but it works just as well and is more privacy-conscious.

If you want to go a step further, on Android you can change the launcher to one like Nova Launcher, which allows you to configure custom gestures on the home screenFor example, you can assign a double tap to open Google Assistant, a swipe up gesture to launch Google Home, and a swipe down gesture to open your ecosystem's smart home app (Xiaomi Home, SmartThings, etc.).

This combination of gestures makes the tablet, even if it's not always listening, feel quick and practical to use as a central controlInstead of a screen full of icons, you have a clean desktop where with a couple of taps or swipes you launch what you need.

Centralizing home automation: Google Home, Apple Home, and branded apps

The true potential of your tablet as a panel lies in its ability to act as the central hub from which you control lights, plugs, thermostats, cameras, and speakers without having to switch apps every other day. The more you unify, the more you'll use the invention in your daily life.

On Android, the key component is Google Home. This app integrates with Matter devices, Nest products, and a long list of brands compatible with GoogleFrom it you can group light bulbs, plugs, robot vacuum cleaners, cameras, speakers, fans and much more, even if they are originally managed from different apps.

One interesting detail is that Google Home now also It has a web version that you can open from your tablet's browser.This is a lifesaver when the device is so old that the official app can no longer be installed or is incompatible. The web interface still has limitations (for example, it doesn't allow you to add new devices or change names or rooms), but for basic home use it's usually more than enough.

If your tablet supports the app, take a moment to add all your devices to your "home" in Google Home and Organize each appliance by room and with clear namesNo more "light 1" or "plug 2": instead use terms like "living room ceiling light," "dining room lamp," "coffee maker plug," or "LED strip above bed." This will make both voice commands and touch control much easier.

If you're using Apple, on an iPad the reference point will be the Home app. There you can group... HomeKit compatible accessories in rooms and scenes (for example, “movie mode”, “night mode” or “leave home”). You can also install Google Home on the iPad for devices compatible with Google but not HomeKit, although the level of integration will be somewhat lower.

Many homes have several brands and ecosystems, and some advanced features are only found in the official applications of each manufacturer (consult best apps for a smart homeCleaning robots, lights with complex scenes, smart air conditioners, or cameras with person detection usually offer many more options from their own apps (Xiaomi Home, SmartThings, Govee, Shelly, SwitchBot, and others) than within Google Home or Casa.

In those cases, the ideal solution is to combine both worlds: Google Home as the main dashboard, and manufacturer apps accessible via icons or widgets on the home screenThis way you can use the tablet for quick daily checks and open the specific app when you want to tweak advanced settings.

Realistic voice control for your smart home

Once the devices are linked to Google Home and properly organized, your tablet transforms into a voice control center with a screen to see what's happeningThe experience is very similar to having a smart speaker with a built-in screen.

From there you can issue orders of the type “Turn on the kitchen lights,” “Turn off all the sockets in the living room,” “Set the thermostat to 21 degrees” or “show the door camera.” If you have compatible TVs or Chromecast, you can also ask it to show a specific camera on the big screen or to play media on a speaker or set of speakers.

The Google Home app also offers quick access to talk to the Assistant, launch routines, make internal calls, or send messages to the speakers.It's an excellent candidate to leave open almost all the time on the tablet, as the main interface for the smart home.

Don't forget that any device integrated into Google Home can also be controlled via voice commands to the Assistant, even if that means Remember the exact name of each device and phrase the request clearly.Sometimes recognition isn't perfect, so it's a good idea to combine voice with large on-screen touch buttons.

Widgets, buttons and shortcuts: build your own touch dashboard

As convenient as it is to talk to the assistant, many times you'll prefer Press a huge button and let the house do what it's supposed to doespecially if you want everyone (children, visitors, elderly people) to use the tablet without learning voice commands.

That's where Action Blocks comes in, a Google tool designed for accessibility that lets you create custom “blocks” or buttons on the home screenEach block is equivalent to a phrase you would say to the Assistant, but you only see a large, clear icon.

The process is simple: you install Action Blocks, create a new block, choose a suggested action or type the command exactly as you would tell the Wizard (for example, “Turn off all the lights in the house”, “Activate night mode routine” or “Play relaxing music in the living room”Then you give it a readable name and customize the icon, or even use a photo so you can identify it instantly.

When you're finished, add the corresponding widget to your tablet's home screen and you're done. From there you can set up a panel with buttons to turn off the whole house, turn on only the kitchen, view the shopping list, check the weather, or listen to the news without saying a word.

In addition, Google offers its own Google Home widget that lets you Pin specific devices and scenes directly to the desktopYou can choose your most important lights, plugs, and cameras and have their basic controls always at hand, without opening the full app.

The winning combination is usually: Google Home widgets for individual devices, Action Blocks for complex routines and widgets from other smart home apps (Xiaomi Home, SmartThings, etc.) for those features where integration isn't entirely seamless. This transforms your tablet's home screen into a truly customized control panel.

Advanced features with Home Assistant and Ava-type apps

If you're one of those who already have it set up a more powerful home automation system with Home Assistant, Zigbee, Z-Wave and custom dashboardsAn old tablet can do much more than just display Google Home.

From your browser or using a "kiosk browser" you can load a full-screen Lovelace panel, with Cards for lights, temperature sensors, consumption graphs, cameras, and scenesThe tablet remains fixed to the wall or a stand, functioning as a dedicated touch terminal for Home Assistant.

In this area, some very interesting solutions have emerged, such as Ava, a voice assistant app for Android based on the brownard/Ava project, which It transforms old tablets and mobile phones into powerful panels integrated with Home Assistant.The goal is to overcome the limitations of apps like Fully Kiosk (paid) or WallPanel (practically abandoned) by offering something more modern and flexible.

Ava is designed precisely for modest devices, compatible with Android 7 to 16 and even 32-bit architecturesTherefore, many cheap tablets or forgotten mobile phones can be revived without problems. However, it doesn't cover very old versions like Android 4-6 because certain key functions don't work properly.

Ava's crown jewel is that it turns your Android device into a complete Bluetooth Low Energy (BLE) gateway for Home AssistantIn practice, it acts as a Bluetooth proxy and extends BLE coverage throughout your home without needing to flash the ESP32 or install additional hardware.

Thanks to this feature, you can deploy multiple Ava devices throughout your home to Extend Bluetooth range, detect the presence of mobile phones, watches and bracelets, and collect data from BLE sensors such as thermometers, plant monitors, or smart locks. All that information is forwarded to Home Assistant as if they were dedicated Bluetooth proxies.

Another distinguishing feature of Ava is her floating windows that appear on top of any applicationThis allows you, for example, to keep the Home Assistant panel in full screen while overlaying an always-on clock, the album art of a playing record, or full-screen notifications when the doorbell or an alarm rings.

Floating windows can include things like a rest clock, a vinyl record cover spinning while playing music, subtitles with conversations with AI, or notification scenes For important notifications. All of them can be controlled remotely from Home Assistant, activating or deactivating each one as needed.

In addition to Windows and the BLE proxy, Ava integrates Features such as remote camera (snapshots and live video), light sensors, proximity sensors, WiFi, battery and storageIntegrated navigation with JS/CSS injection for panels, audio enhancements (echo cancellation, gain control, noise suppression) and screen control (brightness, forced orientation, proximity activation).

The app requires logical permissions to work (microphone, screen overlay, camera, Bluetooth, location for BLE, and system settings) and may It works without root access, although with root access it gains stability for 24/7 use. Thanks to startup scripts, better background management, finer screen control, and automatic restarts.

One of the project's strengths is that it offers Completely free, with no data collection or obligation to create accountsVoice recognition can be done locally, and camera and microphone signals only go to your own Home Assistant server, which is ideal if you're concerned about privacy. The APK is distributed via GitHub, with built-in automatic updates and an issue tracker for reporting problems or suggesting improvements.

Native Android features: home controls, home dashboard, and screensavers

In addition to third-party apps, in recent versions of Android Google has been adding native functions to control the smart home directly from the systemwithout relying solely on widgets or shortcuts.

In Android 11 and later there are what are called Home controls, accessible from the power menu or dedicated panelThese controls are powered by the devices you have set as favorites in Google Home, and allow you to turn appliances on and off or change basic settings without opening the app.

Android 14 brings the home panel, an evolution of those controls It offers a more complete and organized interface for managing connected devices. Additionally, if you use a Pixel Tablet, you can activate "Base Mode" when it's placed on its charging cradle with a speaker, displaying live video from cameras and allowing anyone in the house to control certain devices even with the tablet locked (although unlocking is necessary to change sensitive settings).

Android 15 adds another twist with the home controls screensaverDesigned to transform your phone or tablet into an always-on remote while it's charging, this screensaver displays your smart home controls on the lock screen, allowing you to interact with lights, plugs, and more without ever having to use your home screen.

To configure it, go to Settings > Display and touch settings > Screensaver, activate the option and choose “Home controls” as the primary screensaver modeThen you can decide whether it activates only while charging, only when it's on a base, or in both cases, depending on how you have the tablet positioned.

What to do with very old tablets (Android 4.x, 2010 and so on)?

You might find yourself rescuing a tablet from the bottom of a drawer... a 2010 model with Android 4.2.2 or similarIn these cases, it's very likely that the modern Google Home app, the current Assistant, or utilities like Action Blocks simply won't be compatible.

In such a scenario, setting up a highly sophisticated home automation control panel is complicated, but there is still room for improvement. repurpose the tablet into a photo frame, local media player, or dedicated screen for a lightweight web panelAs long as the browser can load a simple page, you could display a simple dashboard of your home automation system (such as a basic Home Assistant panel) as long as it is not too heavy for the hardware.

Some people get creative with veteran apps like Motion Detector or Tasker-type automation tools for the The front camera acts as a motion sensor and activates the screen when someone passes by.The idea is that the tablet is normally in the dark, and that upon detecting presence it turns on and displays a sequence of screens: weather information, a web-based home automation panel, cameras, etc.

Although you will encounter many limitations due to the age of the system, in many cases the tablet will still work. as a basic secondary screen, digital photo frame, local music player, or spot camera monitorIt won't be as refined a control panel as on a modern Android, but it's better than it gathering dust.

With all these options on the table, from native Android and Google Home features to advanced solutions like Home Assistant and Ava, it's clear that a forgotten tablet can be transformed into something quite simple. The visual and tactile brain of your smart home, a multimedia remote control and a booster for your sensor networkall without having to pay to buy a new "smart" screen.