Despite the fact that it is an element that is practically only present in Xiaomi and Huawei mobiles , the infrared port of phones is a stranger to many, even if it is present in the technical data sheet of your mobile phone. Today we're going to look at how we can take advantage of this sometimes forgotten feature.
Infrared technology is still widely present in the market, in fact, before the advent of Bluetooth-equipped smart device controls, all the ones we used at home worked with this technology.
Contents [show]
- Where is he located?
- How to check that it is active and working How to set it up on a Xiaomi mobile phone
- How to set it up on Huawei mobile phone
- Recover files from old mobile phones
How does infrared communication work?
Imagine that there are two towers at some distance from each other. On one there is a man with a flashlight, on the other there is a man with a notepad. A man with a flashlight shines Morse code towards a man with a notepad. He records and decrypts the signals.
Now imagine that the flashlight is not an ordinary one (with visible light), but an unusual one - it shines in the infrared range. A person cannot see this radiation with ordinary vision, but can see it with special glasses. The one who receives the signal has such glasses.
This is infrared communication.
TCL 10 Pro
It's no surprise that TCL ships an infrared transmitter on its flagship phones. After all, the Chinese tech brand is most widely known for its affordable smart TVs, and there are obvious synergies here.
The quad-camera TCL 10 Pro, priced at $449, offers a Qualcomm Snapdragon 675, 128GB of storage, 6GB of RAM, and a 6.47-inch display. There's also a 3.5mm headphone jack, which is a rarity these days.
Receiver and transmitter
For IR communication you need two devices - a receiver and a transmitter, and they are designed and work differently.
The transmitter contains an infrared LED - a special light bulb that can glow in the infrared spectrum when current passes through it. The transmitter's job is to send a beam to the receiver and transmit data using this beam.
To send data, they most often use approximately the same thing as in Morse code - they blink a light bulb at different frequencies, and each such blink means something different. For example, if the light blinks at intervals of 0.1 seconds five times in a row, then pauses for half a second and everything starts all over again, then this may mean a signal to turn on the device. Thus, alternating different blinking frequencies, the transmitter sends the necessary data to the receiver.
The receiver is designed differently - it does not have an LED, but has a photo relay. It can capture infrared light and convert it into electrical impulses. Next, the device decrypts what the receiver received and executes the necessary commands. Or it doesn’t execute - if the receiver received a command that is not in the device.
