Sending/Receiving data from external app (?)

[iWanheda]

Not sure if it's possible, but using ELM 327 Emulator, I managed to make a Virtual COM Port (COM3 & COM4)

But when I go and use SerialPort in Node JS, nothing happens. I'm most likely doing something wrong, and probably not related to this, just want to know, is it possible?

Maybe you know something I don't. Thanks!