For those of you looking to connect bluetooth devices to your Nintendo DS (for whatever reason), there IS a way. It’s not easy but you can do it following this great articles on how to make a DS Bluetooth adaptor.
In our design, we use a tiny ATmega168 microcontroller to make the Nintendo DS speak to the RN-41 Bluetooth SMD module by Roving Networks. Using this piece of hardware the Nintendo DS can scan its neighbourhood and establish connections to other Bluetooth devices (supporting SPP). The
