I'm looking for a RS232 shield for the Arduino Uno. Something similiar to that: http://www.cutedigi.com/arduino-shields/rs232-shield-for-arduino.html
There are quite some different shields out there. Is there anything to consider? And more importantly do you know any store for cheap (and fast) delivering to Germany? With Cutedigi it costs more shipping fees than the actual product...
Ok found something: https://www.sparkfun.com/products/11958 or from German supplier: https://www.tinkersoup.de/rs232-shield/a-947/
Anyway, this will probably not work for me. I want to communicate with a rs232 device AND the computer via usb. This means, that i need 2 serial connections, right? The shield will probably use the hardware serial, so I can't commincate with the PC?!
As I understand it, I could connect a rs232 converter (Mini MAX3232 RS232 Shield - emartee.com) to other pins and use the software serial for that and the hardware serial for pc communication.
Could you just confirm if I'm right?