How do I use the motherboard infrared interface?

At present, most motherboards provide infrared interface, through the motherboard infrared interface with other devices to achieve infrared communication. Infrared interface connectors are required to communicate using the infrared interface, the Infrared interface connector is equipped with an infrared emitting tube, an infrared receiving tube, a transmission door, a few current-limiting resistors and a five-pin socket, with a connection of five-hole plugs at both ends to connect the Infrared interface connector and the motherboard infrared Interface five-pin socket. In addition, there is a kind of independent infrared interface is directly connected to the COM port, do not use the infrared interface of the motherboard.

But on the market these two kinds of infrared interface connectors are difficult to buy, so that most of the computer's infrared interface has become a device, unused. However, if you have a better radio base, you can make a homemade infrared interface connection device.

Motherboard Infrared Interface Five PIN sockets are defined as: 1+5v (Power positive), 2NC (undefined), 3IRRX (infraredreceive, infrared receiver), 4GND (ground), 5IRTX (infraredtransmit, infrared send). The infrared interface connector is essentially an optical signal conversion circuit composed of an infrared emitting tube, an infrared receiving tube and a transmission door. If you buy or make a homemade infrared interface connector, you have the basic requirements to use the infrared function of the motherboard, of course, you need to use a number of settings and adjustments.

When using the motherboard IR interface, the "uart2useinfrared" item must be set to IrDA in the BIOS's "integratedperipherals" submenu, and the system will enable infrared transmission of the motherboard The COM2 of the motherboard is set to the infrared transport interface. The motherboard infrared transmission interface transmits data using the asynchronous communication interface with a maximum transmission speed of 115.2Kbps. When the "uart2useinfrared" option is set to an infrared transport interface, the motherboard COM2 interface will be out of effect. In addition, if a non-Plug and Play device occupies a COM2 port, the system will not find "Infraredpnpserialport".

When the BIOS setup finishes starting WINDOWS98, the system will be prompted to find new hardware, insert the WINDOWS98 installation disc, and automatically install the following:

1. In Control Panel/system, add the Infrared monitor icon, and the Infrared Monitor shortcut icon appears to the right of the taskbar on the Start menu.

2. In the Device list box in the Control Panel/System/Device Management tab, add entries such as virtual infrared parallel (LPT) ports, virtual infrared serial (COM) ports, infrared communication devices, and Infraredpnpserialport (Plug and Play infrared serial ports). The original serial port COM2 disappeared.

3. Add "Infraredpnpserialport" and "Fast Infrared transport Protocol" to the list in the Control Panel/Network/Configuration tab and bind the Fast Infrared transport protocol.

4. The "Infrared receiver" icon is added to "My Computer" and the "infrared receiver" is a WINDOWS98-specific application for data transfer.

After these settings, you can use the WIN98 from the "Infrared Monitor", "infrared receiver" and other programs set up, using the motherboard's infrared connection function.