I need to set up a connection between my Beaglebone Black Wireless and a Keyence Laser Controller which uses an RS 232 protocol. I have successfully connected my PC to the laser controller and communicated to it using putty, now I want to do the same using my Beaglebone instead of the PC.
To double check, I think I would need an RS 232 to TTL adapter, since RS 232 goes +/- 5V but the Beaglebone goes 0-3.3V which is TTL logic. Is this correct? Also, once I have the right hardware, what can I use on the Beaglebone for the actual communication? Is there something I can use in Nodered to send and receive the commands?