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explain!!!

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XL-power

New Member
hi all

i write a program in order to move a servo motor according to an Accelerometer ....and yes the motor moves while you are change the direction of the accelerometer but ... i face a problem that the servo sometimes moves free whithout touch the accelerometer

is there any thing wrong?how can i control the servo motor so that it moves according to the movement of the sensor only ...

my circuit : accelemeter >> microprocessor>>relays>>servo motor

thanks in advance
 

Nigel Goodwin

Super Moderator
Most Helpful Member
Presumably your software has a bug?, apply normal de-bugging techniques - in particular make sure there isn't any movement data comiing from the accelerometer.

What are the relays for?.
 

XL-power

New Member
Presumably your software has a bug?, apply normal de-bugging techniques - in particular make sure there isn't any movement data comiing from the accelerometer.

What are the relays for?.

i don't know if i get your point!!
actully i write my program using c-language

we use relays as h-bridge for the output of the microprocessor
 

crutschow

Well-Known Member
Most Helpful Member
The accelerometer may have a small output offset voltage, even when it is not moving, which your system is responding to.
 

JimB

Super Moderator
Most Helpful Member
As previously suggested, a programming bug, or, there are is some interference signal getting on to the the signal wires from the accelerometer to the micro processor.

JimB
 
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