Firmata Test Program
This "firmata_test" program works with boards running StandardFirmata version 2.2. If you need to quickly test your hardware, this stand-alone program can access all pins. It runs from a single file (no installation needed), for quick and easy testing!
See Downloads for binaries.
See the Firmata wiki for instruction on how to compile the Firmata test program under Windows using GCC and WxWidgets.