Xiaomi camera as a hub for a smart home

Xiaomi’s modern smartphones have long since ceased to be just communication and entertainment devices, becoming powerful tools for managing the entire digital ecosystem. Device owners often underestimate the potential of an embedded camera and an IR transmitter that can serve as a full-fledged hub or bridge for many gadgets. Using a smartphone as a centralized node allows not only saving on the purchase of individual equipment, but also creating complex logical chains that are not available in standard use.

Integrating the camera and sensors into the Mi Home network offers the user unique possibilities of home automation. You can set the system so that when you detect movement through the lens of your smartphone, the lights in the hallway are turned on or a notification is sent to the tablet, which turns a regular smartphone into the “brain” of an apartment, responding to changes in the environment with minimal latency.

In this article, we will discuss how to turn your device into a universal remote control, we will cover the technical aspects of the operation of infrared ports, the features of setting scenarios through artificial intelligence, and how to optimize energy consumption while constantly working in the background.

The Role of the IR Transmitter in the Xiaomi Ecosystem

A key element turning a smartphone into a universal hub is the built-in infrared port (IR Blaster).Most flagship and mid-budget Xiaomi and Redmi models feature this module, which allows you to emulate remote signals from TVs, air conditioners, audio systems and even projectors. This creates a single entry point for controlling “stupid” equipment that does not have Wi-Fi or Bluetooth support.

Using an IR port requires direct vision or reflection from walls, which sometimes becomes a limitation. However, a properly configured smartphone can control equipment in different rooms if you carry it with you or leave it in the living room as a stationary remote. Mi Remote automatically updates codebases, ensuring compatibility with thousands of models of equipment from different brands.

And it's important to note that the IR signal only works one way, so you don't get status from the device. If you turn off the TV through your phone, it won't report it to the smart home network, which is why integrating with other sensors and creating complex scenarios becomes critical for full automation.

⚠️ Warning: The infrared port operates at frequencies that may conflict with some specific security sensors. Make sure your remote does not interrupt the security systems if they use IR channels.

Setup of automation scenarios through the camera

A smartphone camera can act as an active motion and presence sensor. Using the standard Mi Home app or third-party solutions, you can adjust triggers that respond to changes in frame. For example, if you use an old smartphone as a stationary camera, it can detect a person's entry into a room and start a chain of actions.

To implement these scenarios, you need to create automation like “If... Then...” The condition is to select an event from the camera (motion detection), and the action can be to turn on a smart socket, launch music or send a message, which turns the device into a full-fledged security module without the need to buy additional sensors.

The tricky part of the setup is to minimize false positives, because the camera is sensitive to changing lights, shade from trees outside the window, or pet movement, and the best solution is to set up detection zones in software to ignore the peripheral areas of the frame, which greatly improves the reliability of the system.

Comparison of Xiaomi smartphones with individual hubs

Many users are asking themselves, why buy a separate gateway when the phone is good? The answer lies in autonomy and specialization. Some hubs, such as the Xiaomi Gateway 3 or the Aqara Hub, consume minimal energy and work through Zigbee or Bluetooth Mesh protocols to unload the Wi-Fi network.

But for a start or a rent apartment, a smartphone is the perfect solution, because it doesn't require extra wires or complicated network topologies, you just put it on charge, and it starts working, and this is especially true for people who rent a house and can't drill walls to install stationary sensors.

Below is a table showing the key differences between smartphone usage and specialized hardware:

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The smartphone is ideal for testing scenarios and temporary solutions, but for constant work it is better to use specialized Zigbee gateways.

Use Bluetooth Mesh and Voice Control

Beyond infrared and Wi-Fi, the smartphone is a great bridge for Bluetooth Mesh devices. Many lamps, switches and sensors from the Yeelight and Aqara sub-brands use this protocol. A phone within range can directly control these devices or transfer their status to the cloud for remote access.

The Xiao AI voice assistant (in Chinese) or integration with Google Assistant and Yandex Alice lets you control the entire voice system. The smartphone, acting as a microphone and speaker, becomes the interface for commands. You can say, "Switch on the light in the kitchen," and the phone will transmit the command to the corresponding device.

For Bluetooth devices to work smoothly, Mi Home needs to have constant access to geolocation and Bluetooth. Restricting the background of Android apps can break the connection, so it's important to add the system to battery exclusions. This ensures the system responds instantly to your commands.

• 📱 Make sure Bluetooth is on all the time for the Mesh network to work.
• 🔋 Add Mi Home to the “Do Not Limit” list in the battery settings.
• 🌐 Remote control of Bluetooth devices requires a gateway or phone at home.

Optimizing energy consumption and safety

Turning a smartphone into a hub means it works 24/7, putting the battery at risk of overheating and degradation. Constant use of the camera, Wi-Fi and screen (if used as a control panel) puts a lot of stress on the system, and strict rules of use are needed to ensure that the device lasts for a long time.

First of all, you should limit the maximum charge level if you have it in MIUI, or you should use smart power control outlets, and you can configure a scenario where when the charge reaches 80%, the power outlet turns off, and when it drops to 40%, it turns on again, and that prevents the battery from bloating.

From a security perspective, a device connected to all home gadgets becomes a critical entry point.Never use this smartphone to install questionable apps or click suspicious links.Compromising this device will give an attacker full control of your home.

⚠️ Warning: When you are constantly working in camera mode, the smartphone can get very hot. Do not cover the device with a cloth and avoid direct sunlight on the body.

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Use Do Not Disturb mode and turn off unnecessary notifications so that the phone does not waste resources on processing background processes not related to the smart home.

FAQ: Frequently Asked Questions