Guyb
Guyb
On mine it doesn't have F1,F2. Only V1,V2 which is 12v. F3,4 appears to be the comms. 
Ok cool, yep don't have one handy. So If I had one I could determine the polarity for A and B?
I see. Unplugged the V1,2 and power but it causes the display to turn off.
I don't mind removing the wired remote completely. Really I wanted replace completely with the Pi/RS-485 unit. When I plug the RS-485 with in PI into F3, and F4 -...
I found I had to change all the print statements to include parenthesis to make it work in python 3.