RS232 is a standard communication port for industry equipment. Unfortunately, modern computers don’t have it anymore. Arduino only has a USB port and a TTL UART interface. In order to talk to an industry equipment, we can add a RS232 port to Arduino using this handy RS232 shield.
Compared to RS232 Shield V1, you can choose two pins from Arduino D0 to D7 as Software Serial Ports to communicate with RS232 Shield (D0 and D1 is Hardware Serial Port).
- Does it work with Arduino Leonard? Yes. But please move the switch on Leonard to 5V.
- Product Wiki