IrDa or infrared port in the phone: what is it?

IrDa or InfraRed Data Association, that is, the infrared port is a data transfer protocol using infrared light waves. In the late 1990s and early 2000s, this data transfer protocol was very popular in the mobile field. In the future, popularity was lost by the advent of protocols such as BlueTooth and even Wi-Fi..

What is the reason manufacturers of modern smartphones refuse infrared?

  • One of the main reasons is the complexity of the assembly and, consequently, the increase in the cost of the device, since for IrDA it is necessary to mount a small transparent window in the case.
  • Short range and direct visibility requirements of the transmitter-receiver pair.
  • Not the highest data transfer rate. However, this applies only to earlier versions of the protocol, in later transfer rates may exceed that in the BlueTooth protocol.

This does not mean at all that all smartphone manufacturers have taken and immediately abandoned the infrared port – no, some use it, for example, Xiaomi in their individual models. The company even has a special Mi Remote application, with which you can control equipment using IrDA technology.

Click “Add Remote”.

Choose a technique, for example, a TV.

Now choose a manufacturer company.

And follow the prompts on the smartphone screen.

If everything is done correctly, the smartphone can be used as a control panel, directing the device towards the TV (as a rule, the infrared port sensor is located on the upper edge of the smartphone case).