During the setup of an exhibition, it could make life easier, if every wheelchair can be programmed with the same cable. Therefore, I've built a programming and debugging cable. The cable has a 26-pin / 3-row male sub-d connector at the wheelchair side, and at the other side it provides two WinAVR SIL connectors to program the ATmega8 and the Crumb128 via an SP12 burner. For debugging, there's also a standard 9-pin sub-d serial connector coming out. On the picture below, you can see the connector of the wheelchair side. To get the schematics of this cable, click here.

This is the complete cable.

And this is the side which goes to the laptop for programming and debugging.

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