Controller Board
July 13th, 2009
I completed the controller board yesterday and ran a successful motor drive test. The board consists of a PIC18F14K50, two SN754410NE H-Bridge driver ICs, a 7404 hex inverter chip and some miscellaneous components. I will have some schematics up as soon as I figure out how to make them in gEDA. Unfortunately, there were not enough pins available on the PIC for me to take advantage of Interrupt on Change (IOC) for the optical encoders. I will have to try various methods of polling and see what works best. Also on the to do list is establishing a USB connection with the device.