The pc boards from ExpressPCB arrived on friday. I cut them apart and assembled the Intervalometer and the two wheel encoder boards.
I tested the Intervalometer and the board appears to perform as expected. I used my new WARP-13 programmer for the first time burning the code for the intervalometer. The ability to burn code from MPLAB is great. I'll probably toss out my old Parallax programmer.
After spending most of Saturday refining the intervalometer code I have begun reverse engineering the Olympus Remote Control RC-200 to allow the intervalometer to emulate this trigger mechanism, instead of using the micro servo trigger for the EPIC. The system appears to use two pulse groups repeated three times. I want to keep taking samples.