I have a problem with interfacing two serial port with 8051 microcontroller. I have to use bar code reader and RF reciver and transmitter which both of them interfaced serially. I am thinking to add an ic to controller these to serial ports, but I don't know which type of IC I should used!! could any one help me, please?
Thanks,
Similarly, a student who successfully interfaced an external UART would have taken a big leap towards knowledge about all kinds of interfacing!
Perhaps the OP should more clearly explain what are the actual objectives, requirements, and constraints of this particular exercise...?