View Full Version : BS2 sx and Motor Mind C

04-26-2006, 05:29 PM
Im working with the Motor Mind C carrier board and am trying to create a simple loop where two motors spool a roll of paper back and forth. I've assembled the carrier board and all but now need to connect 2 photoresistors to the bs2. I've found some board of ed schematics and it seems they call for setting up a capacitor and reistors chain in order to read charges stored by the capacitors.

Does anyone have an exerperience with the MMC carrier board and or reading photo resistors into the stamp ?


Bruce Bates
04-26-2006, 06:31 PM
Mike -

Since you seem to have located a system or set-up which appeals to you and one which apparently may meet your needs, let's get a bit more specific. When you say you've "found some board of ed schematics ..." that could cover hundreds or more pages. Which Parallax Stamp Educational text, and which pages within that text, are those that contain the circuits in question? Then, we'll all be on the same page, so to speak.

Can you also give us a better idea what this "spooling" is all about? Are you hoping to "scan" a punched paper tape, or something like that? If you don't feel comfortable in offering the exact application for any reason, a close analogy, or similar application would be fine for now.

How fast will the paper be moving back and forth in inches per second, feet per second, or some other practical measurement? Will the paper come to a full stop, then reverse, then continue in the opposite direction. As we often say - the devil is in the details!

Hoping to be of some assistance -


Bruce Bates

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