Understanding Infrared Sensors on Phones: Testing and Usage

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IR Blaster or infrared sensors are only found in certain specific smartphones. Some users are still confused about them and want to know if their phone has this feature. In this article, we explore infrared sensors, how to test and utilize them on mobile devices.

Smartphones are becoming increasingly smart and powerful. Now, they can serve as controllers for TVs, ACs, projectors, and many other devices. However, to do that, a phone needs to be equipped with an IR Blaster or infrared sensor. An infrared sensor will turn your smartphone into a remote control for most electronic devices at home or in the office. So, what is an infrared sensor? How can you know if it's on your smartphone? And how is it used?

1. What is an IR Blaster or infrared sensor?

Understanding Infrared Sensors and Their Role as Remote Controls

Infrared sensors emulate the functionality of remote controls for various devices. They operate by emitting infrared signals or beams to the device and then controlling multiple functions of the device. The infrared beam is emitted from a small LED light that is not visible to the naked eye. The infrared signal contains a specific infrared code available for each device and its functions, allowing devices to recognize and respond accordingly. So how can you tell if your smartphone has an infrared sensor?

2. How to Identify If Your Smartphone Is Equipped with an Infrared Sensor

2.1. Identifying the Infrared Light

The first step is to identify the infrared light located at the top of your phone. The infrared light is a small LED but it doesn't emit light. It looks like the infrared LED on a TV remote but smaller.

2.2. Read the Phone's Specifications

Check the information about your phone and read its specifications section. The infrared sensor (IR Blaster) will be mentioned if your phone is equipped with this feature.

2.3. Verify on the Website

You can also check the technical specifications of your mobile phone online on the manufacturer's website. If your phone has an IR Blaster, it should be mentioned on the manufacturer's website. You can also refer to third-party websites like GSMArena.com to find out if the infrared port is present on your phone.

2.4. Check for Available IR Blaster Apps

If your phone has an infrared sensor, it should come with a pre-installed IR Blaster app, providing options to control TV, DVD player, Music Player, AC, Set Top Box, and more.

2.5. Use the IR Test App

You can utilize a third-party app designed to check if your device is equipped with an infrared sensor like IR Test. This app operates very simply and provides instant results. Simply download IR Test, open the app, and if your device has an infrared sensor, you'll receive the notification 'You have an IR Blaster'. Otherwise, if not, the notification 'You don't have an IR Blaster' will appear.

3. Using the Infrared Sensor to Control Electronic Devices

To utilize the infrared sensor, you may need to download a remote control app. Some smartphones already have pre-installed apps like Xiaomi and Mi phones. In case your phone doesn't have such an app, you can download tools from third parties like IR Smart Remote or ASmart Remote IR to control supported electronic devices.

Typically, after installing the app, you simply select the device you want to control remotely using your phone and its manufacturer. Most apps come with a list of supported audio and video devices that you can choose from. Then, follow the on-screen instructions to proceed with the setup to link the app with the device. The steps may vary depending on the app and device.

Next, just like a familiar remote control, point your smartphone at the device and press the buttons on the phone screen to use the corresponding functions.

To find out which phone models support infrared, refer to the List of Phones Supporting Infrared here.

Frequently Asked Questions

What is the function of an infrared sensor in smartphones?

An infrared sensor, or IR Blaster, allows smartphones to control various electronic devices by emitting infrared signals. It essentially enables the phone to function as a remote control for devices like TVs, ACs, and projectors, making it a versatile tool for managing home electronics.

How can I check if my smartphone has an IR Blaster?

To check for an IR Blaster, look for a small infrared LED at the top of your phone. You can also verify by reading the phone's specifications in the manual or online, and check for any pre-installed IR Blaster apps.

What steps should I take to use my phone as a remote control?

First, download a compatible remote control app if one isn't pre-installed. Select the device you want to control, follow the app's setup instructions, and then point your phone at the device while using the app to perform the desired functions.

Can I use third-party apps to test for infrared capabilities?

Yes, you can use third-party apps like IR Test to determine if your smartphone has an infrared sensor. Simply download the app, and it will notify you whether your device is equipped with an IR Blaster.

Are there specific smartphone models that support infrared sensors?

Yes, certain smartphone models are equipped with infrared sensors. You can find a comprehensive list of such phones on various tech websites or the manufacturer's official site to determine compatibility.

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