Forums / 8051 Discussion Forum / controlling two servo with 8051 - Rickey's World of Microcontrollers & Microprocessors

Discussion in "8051 Discussion Forum" started by neha Sep 7, 2009.

neha.singla25

[ Fresher ]

Mon Sep 07 2009, 04:52 pm

hi,my project is to control steering of a toy car with one servo motor (using p89v51rd2) through a remote control.if i do not press any key (set for steering-one for left and one for right) then the servo should stay at centre.if i press left key then it should turn 25 degree to left .if i press right key then it should turn right 25 degree.else it should stay at centre(90 degree).
also i want to use enother servo for braking system.can you suggest any ideas for this. please help.coding in assembly language please.please please please help......................................

gopi

[ Member ]

Mon Sep 07 2009, 04:57 pm

Can you just sent the ckt and code of it plz? I am trying to run a servo motor using at89c51.

neha.singla25

[ Fresher ]

Mon Sep 07 2009, 05:05 pm

i dont know code....n also i m using 11.0592 mhz crystal n my servo motors are both (fatuba s3003).
can any body please give me the code for this. please help.............
i will be very thankful to that helpful guy............please

gopi

[ Member ]

Mon Sep 07 2009, 05:09 pm

You might have at least ckt with you?

neha.singla25

[ Fresher ]

Mon Sep 07 2009, 05:27 pm

my ckt is given here.........

ajay_bhargav

Site Owner

Mon Sep 07 2009, 06:07 pm

you want both individual control or both doing the same motion?

gopi

[ Member ]

Mon Sep 07 2009, 07:30 pm

@neha.singla25. But there is no driver ckt given

neha.singla25

[ Fresher ]

Tue Sep 08 2009, 07:11 am

thanks ajay,
i want that servo 1 should control steering n servo 2 for brake.
when i press key 1(asigned for left) than servo should move 25 degree to left . when i relese the botton than it should come back to centre(90 degree) n same with right.......
for brake when i press key 3 (asigned for brake) than servo 2 should turn 25 degree to left.when i relese the key than it should come back to normal.
please help me.....................i will be very thankful to you.

ajay_bhargav

Site Owner

Wed Sep 09 2009, 11:30 am

all you need is to generate correct pulse in correct time to keep motor in right angle.

check this..
http://www.seattlerobotics.org/guide/servos.html

neha.singla25

[ Fresher ]

Wed Sep 09 2009, 12:54 pm

#10

ya but in this website ita only about changing angle to 90 or 180 or 0.
i want to shift either side to 25 degree from 90.
i want these states:-
centre:- 90
left:- 90+25
right:- 90-25
if no input than at centre.........
can u please give me the ful program for this purpose....(asembly)
my details are:-
crystal i m using is 11.0592 mhz
ucontroller:-p89v51rd2
servo:-fatuba s3003