™ IrDA PROTO Manual All Mikroelektronika’s development systems feature a large number of peripheral modules expanding microcontroller’s range of application and making the process of program testing easier. In addition to these modules, it is also possible to use numerous additional modules linked to the development system through the I/O port connectors. Some of these additional modules can operate d as stand-alone devices without being connected to the microcontroller. r a o B l a n o i t i d d A MikroElektronika

IrDA PROTO Additional Board The IrDA PROTO additional board is used for wireless communication carried out via infrared waves. This board includes an infrared transceiver modul TFDU4101 used for serial communication with devices transferring data via infrared waves such as printers, fax machines, notebooks, industrial devices, etc. The MCP2155 circuit provided on the board is used to convert data received from the transceiver module and send it to the microcontroller for further processing. The IrDA PROTO board communicates with a microcontroller via serial communication UART. 1x8 male connector enables connection with development system Jumpers used for baud rate selection The MCP2155 circuit is placed between the transceiver module and microcontroller Infrared transceiver moduleTFDU4101 Figure 1: IrDA PROTO additional board The IrDA PROTO additional board is connected with a amicrocontroller via a 1x8 male Baud rate selection connector. The TFDU4101 infrared transceiver module can send and receive data in the scope of over 1m at a rate of up to 115.2kbit/s. The baud rate depends on the MCP2155 circuit and Jumper position Baud rate position of jumpers B1 and B0. Refer to the table on the right. B1 B0 E E 9.6 kbit/s Labels used in the table have the following meaning: E D 19.2 kbit/s E - Jumper is placed (Enable) D E 57.6 kbit/s D - Jumper is removed (Disable) D D 115.2 kbit/s Figure 2: Additional board IrDA PROTO connection schematic MikroElektronika

The function of the pins provided on the 1x8 male connector CN1: RX - Receive data pin TX - Transmit data pin RTS - Request to send CTS - Clear to send DTR - Data terminal ready DSR - Data set ready Figure 3: IrDA PROTO board connected to a development system by using a proto board MikroElektronika

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