Warning: NOOB
iMac Core 2 Duo
10.11.6 El Capitan
Arduino Nano - quite possibly a clone. See here: https://www.ebay.com/itm/Arduino-Nano-V3-0-CH340G-Micro-Controller-ATmega328-16M-5V-USA-Ships-Today-Kit/192480455584?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
I have tried all manner of drivers, reboots, terminal commands, different cables, different ports, resets, etc. For hours. 
I keep getting the same error. The machine still does’t see the board, correct?
Looks like Terminal sees the board, but System Report does not.
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00
This is my first attempt with Arduino. I just want to add LEDs to some models. I am not a programmer, and some of the language and acronyms you might use will probably go over my head. Please be patient. I am at my wits’ end.
Thanks in advance.
needs CH340G driver
there is a discussion about this driver and Macs somewhere on this forum
.
I have tried all of these
CH34x_Install_V1.4 Jan 11, 2017
CH34x_Install_V1.3 Aug 16, 2016
CH34x_Install Nov 2, 2015
Same results every time. This shows up in Terminal:
/dev/tty.wchusbserial620 /dev/ttyt0
Which looks correct, however it does not show in System Info, unless this is it:
USB2.0-Serial:
- Product ID: 0x7523*
- Vendor ID: 0x1a86*
- Version: 2.63*
- Location ID: 0x06200000*
That’s the only item that doesn’t have a name. The rest say Apple.
In the app, Nano is selected. It sees the same port as shown in Terminal.
And it still fails.
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x0
Using the USB 2.0 ports on back of the computer (tried the ones on the keyboard as well to rule out a bad port, though everything else I have works).
The cable is the same one I use for my external HD.
Apparently instructions here
Use at own risk!
Edit: the problem seems to be related to Apple not allowing 3rd party drivers in os 10.10, 10.11, not sure about 10.12 or 10.13
