I bought a cheap "Make" kit at RadioShack, which includes some sort of proprietary Arduino Uno compatible motor/sensor shield. Naturally, the documentation is pretty bad. The documentation and Arduino code for the kit is here:
It includes a circuit schematic (2770168-CorePCB_schematic.pdf), but I'm still having trouble mapping the pins to the Arduino's pins. Can anyone help me make sense of this?
What I've made out so far is the shield's screw terminals appear to be connected to quadruple h-bridges. However, there are several other pin headers that I can't quite make out. I think it also directly exposes 4 of the Uno's ADC pins and 4 DIO pins. There are four pins for dual IR line sensors, but there's a lot of circuitry between these and any Arduino pins. Almost everything feeds into a DC6688F2SCN chip, but I can't find a datasheet anywhere, so I have no idea what it does.
The manual says jumpers on J16 need to be removed in order to connect to the Uno over USB, so it looks like I can't use the shield with the board and debug via USB at the same time. Is this board worth investigating or should I trash it?