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Problem with motormind and servo — Parallax Forums

Problem with motormind and servo

HoffaHoffa Posts: 46
edited 2007-03-29 18:42 in Propeller 1
Hi

I have an odd problem. I´ve connected a motormind B and a Servo (HITEC HS-851BB) to propeller. But when i using motormind the servo starts turning.

I will now try to describe how I have connected everything:

Two 6V batteries are connected in series. One battery (6V) is connected to propeller and positive pole of the series of batteries (12V) is connected to the motormind, there are also a capacitor from positive to ground (as in the description of motormind).

The servo is connected to propeller as usual, but the servo needs so mutch power that neither the 5V or Vdd on propeller will be enough. Therefore I have connected the positive pole directly to the battery (6V).

····/
[noparse][[/noparse]+cond-]
\
····\······································\
\
···· \--[noparse][[/noparse]+Bat-]
\----[noparse][[/noparse]+Bat-]-/--[noparse][[/noparse]+motormind12V-]---[noparse][[/noparse]+motor-]--\
······\··················· \·····························\·····\
······ \-[noparse][[/noparse]-propeller+]-/
\···· \
········\·····\······ \··········································\
········ \···· \······ \
\
········· \··· ·\
\
·········· \
[noparse][[/noparse]+servo-]---\


The motormind works fine when the servo not connected and the servo works fine when the motormind·is not connected. But when they both are connected the servo beginns to turn even if I´m just using the motormind and nothing more.

Someone who·know what to do? Please help me!

/Hoffa·
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