Hello All,
I'm absolutely stuck here. I want to program an Arduino Pro Mini and later native AtTiny85 from my Mac Book Pro on Mac OS X Sierra (also tried El Capitan) using Arduino IDE 1.6.12. I need to use a usb to serial converter as the micro controllers in question do not have a usb interface. I purchased an Arduino usb2serial converter and attached it to my mac, but unfortunately the serial interface does not show up in the Arduino IDE 
From searching the web, it seems like the problem is that no serial driver can be loaded. So first I made sure, that the rootless configuration is put in a state, that necessary kext extensions can be loaded:
csrutil status
System Integrity Protection status: disabled.
Next I tried various hints rom the web saying I needed to install FTDI Support - so I got myself libusb, FTDIUSBSerialDriver and DFU-Programmer and installed everything - which worked flawlessly.
Nevertheless, my serial connection is not shown in the IDE and I can't pull any board information. Has anyone any idea???
Micro Controller: Arduino Pro Mini
USB2Serial Converter: Arduino USB2Serial
I would highly appreciate any help,
Chris
