pi@raspberrypi:~/Znodejs $ node -v v6.10.2 pi@raspberrypi:~/Znodejs $ npm -v 3.10.10 pi@raspberrypi:~/Znodejs $ node index.js now listening to the port 3000.. serial port /dev/ttyUSB0 is opened.
So, it works! See my previous article IC-7410 Rig Control with http for index.js and index.html.