I have read about every post about people having issues with their Arduinos on Macs. I have a 100 % authentic Aurdino UNO, that I cannot by any circumstance manage to connect to my late 2009 iMac with macOS Sierra 10.12.2.
I tried just about anything from disabling Apple FTDI drivers, installing FTDIUSBSerialDriver, D2XX drivers and even the CH34X drivers (for knockoffs). NOTHING works.
Not even setting boot arguments, not disabling default extensions/drivers, not removing extensions/drivers.
I am completely stuck, and no guide has ever worked. I've tried rebooting numerous times, but still no luck. The only port available in the Port menu is the Bluetooth Incoming port.
Does anyone have any tips or hints? I am on the verge of doing a complete reinstallation of my computer just to have all drivers back to default.
Seems you are not knowing exactly what UNO you got or you don't trust the original which you bought.
An original Arduino UNO comes with an FTDI chip and no CH340G or something else.
Sierra does have issues with original FTDI_UNOs.
There are some reports here which pretend (and I have no doubt to believe that) that they could find a solution for Sierra. As I don't have this combination I can't really give you a solid advice. But stop messing around with drivers for chips which are not built on your original UNO.
Post a screenshot showing what ports are detected by your Sierra. (IDE: tools/port)
I know that original UNOs use FTDI, but I just wanted to highlight that I've tried all the guides and how-to's I've found on the Internet, including the ones with CH34X chip.
Thanks for the pictures.
Looks like an original one.
So FTDI is the chip which sets the communication between your board and USB on the Mac.
Pls have a look at the threads which deal with "Sierra, FTDI". That's the only advice I can give as I don't have this problem as I am still with Yosemite on my Mac.
