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Unread 21-09-2005, 10:58
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Al Skierkiewicz Al Skierkiewicz is offline
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Re: Additional basic stamp servo power supply

Quote:
Originally Posted by sparksandtabs
I have a Basic Stamp and 2 servos i want to run from it, but from a different power supply. I have a 7805 to make a 9 volt battery supply 5 volts, but I cant figure out how to get power to the servos from it, I hooked it up all the right way, but it just doesn't work

I need, power coming from a diff source then the Stamp, but the signal to come from the Stamp
There should be no reason this doesn't work as long as the negative from both power supplies and the basic stamp ground are tied together. (Including the common lead of the 7805, and the common leads of the servoes.) However, as much power as a 9 volt battery has, it is limited. You might want to get a battery holder from Radio Shack that allows you to use either AA or C cells in a 9 volt configuration.
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