The USB ProgKey is the essential interface between YAPSC Servo Boards and you.
It is completely isolated interface, which means there is no risks that you computer can be destroyed if the Servo Board breaks down. For this reason, the USB ProgKey does not provide power to the Servo Board

Update

The USB ProgKey now has pro-made PCB!
Below you can compare old home-made PCB and custom pro-made PC. The new PCB also includes a new feature that allows the ProgKey to reset the YAPSC board without the need of switching the power off.

On the left is a mini-B USB connector, and on the right is the IDC (HE10) connector to the Servo Board. It also features Power, Emit and receieve LEDs for easy monitoring of link activity.

Files

Complete package with drivers, bootloader program (for Windows), Hyperterminal configuration file and manual : ZIP File

Manual only : PDF File