What Does An IR Blaster Do

Mobile Accessories
Source: Communityin.oppo.com

An IR blaster is a powerful feature that can greatly enhance the functionality of your mobile phone. While many are familiar with the term, not everyone understands exactly what an IR blaster does and how it can be used. In simple terms, an IR blaster is a built-in hardware component that allows your phone to act as a universal remote control. It emits infrared signals that can be interpreted by various electronic devices, such as TVs, air conditioners, stereo systems, and more. This means you can use your phone to control these devices, eliminating the need for multiple remotes cluttering up your living space. Whether you want to change the channel, adjust the volume, or turn off the lights, an IR blaster gives you the power to do it all with just a few taps on your mobile phone.

Inside This Article

  1. IR Blaster Overview
  2. How Does an IR Blaster Work?
  3. Common Uses of an IR Blaster
  4. Compatibility of IR Blasters with Devices
  5. Conclusion
  6. FAQs

IR Blaster Overview

IR Blaster, also known as Infrared Blaster, is a feature found in many smartphones and other devices that allows them to act as a universal remote control. This technology uses infrared light to transmit control signals to other compatible devices, such as TVs, air conditioners, stereo systems, and more.

The IR Blaster is a small sensor located on the top or side of the smartphone, capable of emitting and receiving infrared signals. It works by translating the commands from the user into infrared signals, which are then sent out in the form of pulses. These pulses are received by the target device, enabling the user to control it remotely.

The primary function of an IR Blaster is to simplify the control of various electronic devices. Instead of having to use multiple remote controls for different devices, users can consolidate the control into their smartphone using the IR Blaster. This eliminates the need for cluttered and misplaced remotes, making it more convenient to operate multiple devices from one place.

Many smartphones come pre-equipped with built-in IR Blasters, while others may require an additional accessory, such as an external IR Blaster dongle. Once the IR Blaster is set up on the smartphone, users can download a compatible app that serves as a remote control interface. These apps typically have a vast database of device codes, allowing users to easily find and control a wide range of devices.

The IR Blaster offers a seamless integration experience, as it can mimic the functions of the original device remote control, including power on/off, volume control, channel changing, and more. This means users can easily switch between controlling their TV, sound system, and air conditioner, all from the convenience of their smartphone screen.

In addition to controlling individual devices, the IR Blaster can also be integrated with smart home systems, such as voice assistants or home automation hubs. This enables users to incorporate their IR-controlled devices into their overall smart home setup, allowing for centralized control and automation.

However, it’s important to note that while the IR Blaster technology offers significant convenience, it does have its limitations. One limitation is that the range of the IR signal is typically limited to a few meters. Therefore, users may need to be within proximity of the target device for effective control. Additionally, some newer devices, especially those with Bluetooth or Wi-Fi connectivity, may not be compatible with IR Blaster technology.

How Does an IR Blaster Work?

An IR (Infrared) blaster is a small device that allows you to control electronic devices using infrared signals.

The IR blaster works by emitting infrared signals that are compatible with various home appliances and electronic devices such as TVs, air conditioners, DVD players, and audio receivers. These signals are then picked up by the IR receiver on the device, which translates the signals into commands that the device can understand and execute.

Inside the IR blaster, there is an infrared LED (Light-Emitting Diode) that emits infrared light when powered. The LED produces infrared light in a specific wavelength range, typically around 940nm. This wavelength is chosen because it is invisible to the human eye but can be detected by IR receivers.

When you press a button on your remote control or smartphone app that is connected to the IR blaster, a command is sent to the IR blaster to emit a specific sequence of infrared signals. Each button press corresponds to a unique signal pattern that is recognized by the device you want to control.

The infrared signals emitted by the IR blaster travel in a straight line and can be obstructed by physical obstacles such as walls or furniture. That’s why it’s important to have a clear line of sight between the IR blaster and the device being controlled.

Modern smartphones often come with built-in IR blasters, allowing you to use your phone as a universal remote control. These smartphones have special apps that communicate with the built-in IR blaster, enabling you to control your TV, air conditioner, or any other IR-controlled device.

In addition to smartphones, some smart home hubs also have IR blasters built-in, which allows for integration with other smart home automation systems. This means you can control your IR-enabled devices using voice commands or through a central control panel.

It’s important to note that not all devices can be controlled with an IR blaster. Some newer devices, like certain streaming media players or smart TVs, use technologies like Wi-Fi or Bluetooth for remote control. In these cases, an IR blaster would not be compatible.

Overall, an IR blaster is a convenient tool for simplifying the control of multiple electronic devices. Whether it’s through a smartphone or a smart home hub, an IR blaster allows you to streamline your home entertainment system and make your life a little easier.

Common Uses of an IR Blaster

An IR blaster is a fantastic feature found in many smartphones that allows you to control various electronic devices using infrared signals. This powerful technology offers a range of convenient uses, making it a valuable tool for maximizing your smartphone’s functionality. Here are some common uses of an IR blaster:

1. Universal Remote Control: With an IR blaster, your smartphone can transform into a universal remote control, eliminating the need for multiple remote controls cluttering your living room. Whether it’s your television, air conditioner, DVD player, or even your set-top box, you can easily control all these devices from the convenience of your smartphone.

2. Home Automation: An IR blaster can play a crucial role in home automation. By integrating your smartphone with smart home devices that use infrared signals, such as smart lights, fans, and thermostats, you can control and adjust these devices using your phone. This makes it incredibly convenient to manage and customize your home environment according to your preferences.

3. Simplified Entertainment Experience: Eliminate the hassle of searching for multiple remote controls or struggling to find the right buttons in the dark. With an IR blaster, you can easily control your home theater system, including your TV, sound system, and streaming devices, all from your smartphone’s screen. This not only streamlines your entertainment setup but also enhances your overall viewing experience.

4. Smart Home Integration: IR blasters can be integrated with smart home systems, enabling you to control not only devices that use infrared signals but also other smart devices. This allows for seamless synchronization and centralized control of various aspects of your smart home, from the lighting and temperature to security systems and more.

5. Personalized Macro Commands: With an IR blaster app on your smartphone, you can create personalized macro commands. For example, you can program a specific command that turns on your TV, changes the input source, and adjusts the volume all with a single tap on your phone. This simplifies complex tasks and enhances your user experience.

6. Enhanced Accessibility: An IR blaster can be especially beneficial for individuals with mobility or accessibility challenges. With the ability to control multiple devices from a single device, it eliminates the need for physical remote controls and provides a more accessible and user-friendly way of interacting with electronic devices.

7. Remote Troubleshooting: An IR blaster also enables remote troubleshooting of electronic devices. If you encounter any issues with a device, you can use your smartphone and the IR blaster to access the device remotely and perform maintenance or troubleshooting operations without the need to physically interact with the device.

Compatibility of IR Blasters with Devices

One of the key factors to consider when purchasing an IR blaster is its compatibility with different devices. IR blasters are designed to interact with a wide range of electronic devices that use infrared signals for communication. These devices include TVs, DVD players, cable/satellite receivers, sound systems, air conditioners, and many more.

Before making a decision, it is important to check the compatibility of the IR blaster with the specific devices you intend to control. Most IR blasters support a variety of brands and models, but there may be exceptions. It is recommended to consult the product specifications or reach out to the manufacturer to ensure compatibility.

Some IR blasters are equipped with a comprehensive database of device codes, allowing them to control popular TV brands and models out of the box. However, for less common or older devices, you may need to manually program the IR blaster by finding and entering the appropriate code.

Moreover, some advanced IR blasters are designed to learn and store the infrared codes from your existing remote controls. This feature enables them to mimic the commands and control virtually any device that uses an infrared remote.

Additionally, it is worth noting that the compatibility of IR blasters may extend beyond traditional home entertainment devices. With the rise of smart home technology, some IR blasters are integrated with smart home systems and can be controlled using voice assistants or mobile apps.

It is advisable to consider your specific device requirements and choose an IR blaster that offers the necessary compatibility to ensure seamless integration into your home entertainment setup.


The IR blaster is a versatile and fascinating component found in many mobile devices. Its ability to emulate the functions of remote controls makes it a valuable feature for controlling a wide range of electronic devices. Whether it’s adjusting the volume on your TV, changing the channel on your cable box, or even controlling smart home devices, the IR blaster offers convenience and ease of use.

By harnessing the power of infrared technology, the IR blaster allows your smartphone or tablet to become a universal remote control, eliminating the need for multiple remotes cluttering your living space. With just a few taps on your screen, you can effortlessly control various devices and enjoy a seamless entertainment experience.

As technology continues to evolve, the IR blaster may become less common in modern smartphones, but it still holds significant value for those seeking a convenient way to control their electronic devices. So, whether you’re a tech enthusiast or simply looking for ways to streamline your home entertainment system, the IR blaster is definitely worth considering.


1. What is an IR Blaster?
An IR Blaster, short for Infrared Blaster, is a feature found in some smartphones and remote controls that allows them to send infrared signals to control or operate electronic devices such as TVs, air conditioners, DVD players, and more.

2. How does an IR Blaster work?
An IR Blaster emits infrared signals that simulate the commands of a remote control. It transmits these signals to the infrared receiver on the target device, mimicking the functionality of a traditional remote control. This enables users to control multiple devices from their smartphone or other devices equipped with an IR Blaster.

3. Which smartphones have IR Blasters?
While not all smartphones have an IR Blaster, some popular models that do include the Samsung Galaxy S and Note series, Xiaomi Redmi and Mi series, Huawei Mate series, and some LG smartphones. It’s always a good idea to check the specifications of a smartphone to see if it includes this feature.

4. What are the main advantages of using an IR Blaster?
The main advantage of using an IR Blaster is the convenience it offers in controlling multiple electronic devices from a single device. It eliminates the need for separate remote controls, reducing clutter and making it easier to operate various devices. It also allows for centralized control and customization options, such as creating macros or schedules to automate tasks.

5. Can I use an IR Blaster to control any device?
In general, an IR Blaster can be used to control a wide range of devices that utilize infrared signals for remote control functionality. However, it is important to check whether the specific device you want to control is compatible and has support for external IR control. Some newer devices may use alternate communication methods, such as Wi-Fi or Bluetooth, for remote control functions.