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rc servo controller problem
Posted: Wed Jul 17, 2013 8:32 am
by nuwan5213
Dear Friends,
I used SR-402p type rc motor and its nameplate says it is 180 degree motor.
my problem is i cannot get that range with my flowcode.
it only works 90 degree for me.
i used flowcode v4 example file and same thing happaning.
what is the problem????
im new to this .please help!!!!!!!!!!!!
Re: rc servo controller problem
Posted: Wed Jul 17, 2013 6:21 pm
by medelec35
Hi nuwan5213,
do you have the data sheet for servo motor you can post please?
I have check pulse width on hardware for flowchart you have posted.
With An0 at 0V pulse width is 918.5 uS = 0.9185mS
With An0 at 5V pulse width is 2.22mS
Time between pulses is 20.5mS
This appears to be correct for a standard Servo motor.
Looking at data sheet, we maybe able to determine if the pulse is adequate or not?
Have you got access to a scope so yo can check pulse output width from B7?
Martin
Re: rc servo controller problem
Posted: Thu Jul 18, 2013 4:28 am
by nuwan5213
Dear Martin,
1)i do not have ossilescope.
2)also i dont have specification data sheet, ITS MODEL No. is SR-402P.
i googled but cannot find data sheet.
anyway,
could you please advise if i want to adjust duty cycle of my program ,how can i do?
then i can do some trials.
Thank you for your help
regards,
nuwan.
