Thanks for the various feedback. My INA125 comes in a few days so I still can't do much.
I apologize again for being stupid but what should I do with the 2 white and 2 black pairs of wires once I take them off the board? Should they go into the Arduino somewhere?
Here's what I know I need to do:
- Unsolder all wires from PCB (keeping track of which white/black are paired and which of E+/-, S+/- they're associated with).
- Connect the red wires to the Arduino with "E+" going to Aref, "E-" to ground and "S+" and "S-" going to two analog inputs.
Thanks again for the help.