Hello,

I am a roaster/lurker that has recently come upon hard times...

I have been operating a TC4/Poppery with artisan using a Mavericks flavored mac for a little over a year now with great success . Recently I was forced to upgrade to Xcode7 and El Capitan. This undoubtedly brought several headaches, including the operation of my arduino based TC4 roaster.

I have been troubleshooting this issue for several hours now. I will maintain a list of what I have tried and hopefully what ultimately remedies my issues. I would greatly appreciate insight anyone may have into my problem.

Attempted fixes:
1: Updated FTDI drivers to 2.3 [ http://www.ftdichip.com/Drivers/VCP.htm ].
2: Upgraded Arduino IDE to 1.6.7 [ https://www.arduino.cc/en/Main/Software ] (for troubleshooting purposes).
3: Disable kext signing verification [ http://tzapu.com/making-ch340-ch341-ser ... itan-os-x/ ]. At this point I can talk to the TC4 using the arduino serial port monitor. Basic commands such as "chan,1234" and "read" work as expected see https://drive.google.com/file/d/0B4HTX5 ... Z4Uk0/edit page 9. (just to be exhaustive: chan,1234->Active channels set to 1234 read_>0.00,13.74,13.89,0,0)
4: Updated Artisan to 0.9.8

Current Status:
I am unable to connect artisan to the TC4, receiving the error "Serial Exception:Unable to open serial port". The serial log in artisan only contains repeats of this message "ArduinoTC4 :/dev/cu.usbmodemfa1341,19200,8,N,1,1 || Tx = || Rx = || Ts= 0.00, 0.00, 0.00, 0.00, 0.00, 0.00". usbmodemfa1341 is the port that worked in arduino. Full reboots, and attempting to run Artisan with the arduino IDE on and off have no effect.

If anyone has experienced similar issues I would appreciate any advice.

Best,
Daniel

P.S. My artisan software is a modified version of greencardigan's Artisan_QPID. I have maintained the serial protocol.

I have solved my own issue... replacing cu with tty, even though tty is not available in the drop down menu.

Best,
Daniel