MIKROE-82

Manual IrDA2 All Mikroelektronikas development systems feature a large number of peripheral modules expanding microcontrollers 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 as stand-alone devices without being connected to the microcontroller. MikroElektronika Additional BoardIrDA2 Additional Board The IrDA2 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 MCP2120 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 IrDA2 board communicates with a microcontroller via serial communication UART. The MCP2120 circuit is placed between the transceiver module and microcontroller Jumpers used for baud rate selection DIP switch SW1 is used to select a development system to connect the IrDA2 board to Infrared transceiver module TFDU4101 2x5 female connector enables connection with development system Figure 1: IrDA2 additional board The TFDU4101 infrared transceiver module can send and receive data in the scope Baud rate selection of over 1m at a rate of up to 115.2kbit/s. The baud rate depends on the MCP2120 Jumper position circuit and position of jumpers B2, B1 and B0. Refer to the table on the right. DIP Baud rate switch SW1 is used to select a development system to be connected to the additional B2 B1 B0 board, Figure 2. E E E 14.4 kbit/s E E D 28.8 kbit/s Labels used in the table have the following meaning: E D E 57.6 kbit/s E - Jumper is placed (Enable) E D D 86.4 kbit/s D - Jumper is removed (Disable) D E E 172.8 kbit/s Figure 2: Additional board IrDA2 connection schematic MikroElektronika