[islandlabs] RS-232 to TTL circuit for use w/ makerbot?

Burns, William burns at cshl.edu
Sun Apr 4 22:48:21 EDT 2010

Here's a description of how to make a regular RS-232 serial port/cable into a 3.3vTTL-232 cable.
I'm not sure if this will work with a 5-Volt TTL-232 device like the makerbot.
Actually, this is a diagram for a 3.3V in-circuit programmer for a parallax propeller, but the 3.3VTTL-232 *should* be one-pin simpler/easier.

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