two serial devices


I am working on a project that requires me to read a serial device do some calculations and write to another serial device connected to the same board. is this possible by simply using pins 0 and 1 on the board to connect to the two serial devices ?

Thank you in advance


If all you ever do is read from one device and write to the other (and you can configure both devices for the same baud rate) then what you are proposing would work just fine.

Otherwise you can use the hardware serial (pins 0 & 1) for one link and use a software UART for the other link. Lots of options. Then new mega Arduino has lots of hardware serial ports also. The 644p AVR chip has two hardware UART ports available. Lots of ways to go.


Yes, that will work, but as retrolefty points out, a write-only RS232 peripheral is an ideal candidate for software serial.