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some algorithms

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andreahmed:
hi , first i wanna know how to use the encoders for positional control , i read the tutorial here , and the pid one , i just want use it to make the turns like 90Degrees , 180 ..etc
is this pseudo code correct ?

while ( desired_position !=actual_position)
{

error = desired_position - actual_position
error = error * KP  // proportional control
pwm ( error) // pwm the motor to the desired position
}

also i were pariticipated in a contest Robocon
http://www.vtv.org.vn/robocon/2007en/en/index.asp?menuid=838&parent_menuid=838&fuseaction=3&articleid=2214

some guys said they were using 8 Sensors for line following , i wish ya write a tutorial about something like that , like how we can follow a line in a good speed also how to count the crossing lines and how to do the turns like 90 and 180 in something like the game field showing there , can u write some algorithms plz ?

andreahmed:
any idea ?  ???

Admin:

--- Quote ---some guys said they were using 8 Sensors for line following , i wish ya write a tutorial about something like that , like how we can follow a line in a good speed also how to count the crossing lines and how to do the turns like 90 and 180 in something like the game field showing there , can u write some algorithms plz ?
--- End quote ---

You mean like this? :P
http://www.societyofrobots.com/competitions_mobot.shtml

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