I bought a Sparkfun Qwiic Redboard arduino and tested it on a PC at school and got it working quickly. Now I've taken it home where I have two old Macs running OSX 10.11 and 10.9.5.
I followed the instructions Sparkfun has here -
https://learn.sparkfun.com/tutorials/redboard-qwiic-hookup-guide
I got the Arduino Create plugin installed. I installed the CH340 driver it wanted. I can see the arduino port on my machine in Terminal:
Users-iMac-2:~ user$ ls /dev/cu*
/dev/cu.Bluetooth-Incoming-Port /dev/cu.wchusbserialfa13120
/dev/cu.Bluetooth-Modem
All of that seems to be as it should as far as I can tell. I have that port and Arduino/Genuino UNO selected in the editor.
I try to upload the blink example, and the first time there's a red message saying "Exec command not executed" and nothing seems to happen.
When I try uploading again my Mac screen goes black and the machine reboots. That happened on both machines several times, and it also occurs when I try to use the Monitor.
I had my arduino Redboard first plugged into the keyboard USB connector, but then I moved it to the back USB plug and the machine still crashes the same way.
I did get the web editor to work with this Redboard on an old Compaq laptop I got from the school when they threw them away, but absolutely no luck with my Macs. Any ideas?
Thanks,
Steve
After fighting a losing battle most of the day I'm convinced I've installed several wrong drivers but I don't know how to get rid of them. I can't even find where they are on this machine. Aargh. I don't know what I'm doin' ...
I gave up on the Macs and went back to the old Compaq. Now it quit working too! Even the Arduino Create debug console will not appear. What in the world is going on? Most discouraging ... sigh.