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Simple Servo Tester

Step 12Operation: Hook up your servos

Operation: Hook up your servos
Plug in your servos, the polarity is marked on the board. The Signal line is usually White, Yellow or Orange depending on which brand of servo you are using.

Test for proper operation. If there is erratic movement, or no movement at all it is most likely because of a bad solder joint or bridge. Unplug the battery and servos and inspect all joints. Re-solder any connections that looks suspicious.
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Author:Gadget Gangster(GadgetGangster.com)