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The MegaBitty only has TTL level RS-232 on it, so some type of level shifting is required. HVWTech makes a very nice little adapter. Once feature that I really like about the HVWTech adapter is that by soldering some 0.1" headers in the 4 pins along the back and the two pins next to the "HVWTech" on the board, and the two pins in the same spot across the board, you can then plug it into a solderless breadboard. HVWTech also makes a nice little voltage regulator for working with solderless breadboards as well. Bigger...
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Copyright 2008 by Dave Hylands