IR Serial Data Link (IRDA) Features - Sunrom Technologies

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SpecificationsName Min Typ Max UnitWorking Voltage 4.5 5 5.5 VFrequency of Operation 40 KhzTypical Operating Range 5 metersUART baud rate (8 bit data, no parity, 1 stop bit) 2400 bpsPin definitionPin Pin Name DetailsRX-IN Receive Input Input serial data of 5V logic level, Usually connected to TXD pin ofmicrocontrollers.TX-OUTTransmit Output Output serial data of 5V logic level, Usually connected to RXD pin ofmicrocontrollers.+5V Power Supply Regulated 5V supply input.GND Ground Ground level of power supply. Must be common ground withmicrocontroller.2Sunrom Technologies Your Source for Embedded Systems Visit us at www.sunrom.com
Interfacing with microcontrollerIt’s very easy to interface with microcontroller having UART at 5V level. Configure yourmicrocontroller to communicate at 2400 baud rate and you are ready to receive or transmit.Due to nature of IR Link, It would happen that whatever you transmit will also reflect back to itsreceiver RXD pin. So when you transmit make sure you do not check received data at same time.For example if you are implementing receive interrupt, disable it before transmission. After transmitis done you can enable receive interrupt.VCCVCCC210uF 16VR310K39383736353433321234567831+9U1AT89S52P0.0/AD0P0.1/AD1P0.2/AD2P0.3/AD3P0.4/AD4P0.5/AD5P0.6/AD6P0.7/AD7P1.0/T2P1.1/T2EXP1.2P1.3P1.4/SSP1.5/MOSIP1.6/MISOP1.7/SCKEA/VPPRSTGND20VCC 40XTAL119C1100nP2.0/A8P2.1/A9P2.2/A10P2.3/A11P2.4/A12P2.5/A13P2.6/A14P2.7/A15P3.0/RXD 10P3.1/TXD 1112P3.2/INT013P3.3/INT114P3.4/T015P3.5/T116P3.6/WR17P3.7/RDXTAL2182122232425262728PSEN 29ALE/PROG 30Y1VCC4321CN1Serial IR Link Model: 1165RX-INTX-OUT+5VGNDC433p11.0592C533p3Sunrom Technologies Your Source for Embedded Systems Visit us at www.sunrom.com
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IR Serial Data Link (IRDA) Features - Sunrom Technologies

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