[Katie_UPS]

I haven't used this set up before, but I've done a serial thing or two before. I found the WPI Library so I'm just going off that and what I know.

readString takes in the number of characters to read, not bytes, which is probably a non-issue, but I recommend using it without any parameters to see if there is more in the buffer for some reason. For troubleshooting, the writeString function returns the number of bytes written. I recommend printing that out.