Attempt at cheap homemade version of Harmony

[Oran]

Update on range with the increased shift update speed. I managed about 20 miles short of 200 so the range has been reduced by about 10%. Not as much as I expected. I suppose the servo isn't really moving much more its just doing it in twice as many smaller steps.

To make the Arduino easily replaceable I have used some old ribbon cable to make a socket.

By grouping the wires into pairs it gives a second position for each row of pins on the Arduino. This also makes it possible to temporary connect to an Arduino pin by using the second row in the socket.

Here's a circuit diagram I used to get the 9pin connecter wired up right. Will make it easier to understand the setup I'm using.