I've bought and Arduino Nano compatible on eBay:

enter image description here

But by the time I connect it to my Macbook Pro (OS X El Capitan 10.11.2) doesn't appear under "Tools -> Port" in Arduino IDE:

enter image description here

I've followed some instructions by other posts here in StackOverflow:

But none of them worked :(

If someone could help me out with this issue I'll be grateful.


  • What serial chip is on that board? – Majenko Dec 17 '15 at 18:09
  • The chip is an Atmega 328P – JV Lobo Dec 17 '15 at 18:10
  • No, I said SERIAL chip. Turn it over. That one, right there. – Majenko Dec 17 '15 at 18:11
  • 1
    So sorry Majenko. CH340G is in the serial chip. Thanks. – JV Lobo Dec 17 '15 at 18:21
  • 2
    Ah, I guessed as much. Good luck with that then - that chip has real problems with Yosemite. – Majenko Dec 17 '15 at 18:26

I was be able to solve the issue.

By looking for the serial chip my board has: CH340G I found this blog post:


So I downloaded the signed driver for my chip and now it works :D

Driver: http://kiguino.moos.io/downloads/CH34x_Install.zip

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