On Mac, the Arduino IDE does not recognize the serial port of the TinyScreen+ at first. I fixed this problem by downloading and installing the FTDI driver 2.4.2. It worked great. Then, I made some changes to the library, and now I cannot get the IDE to recognize the port. It has reverted to it's original state, which was finding a port called "cu.Bluetooth-Incoming-Port" whereas when I had it working, it found some kind of USB modem version of the port and worked great. Now, however, I have tried to repeat the fix I found from last time and with no success. Thanks for any help if you have seen this issue and have a fix.