Digital Servo Speed?

i received arduino duemilanove earlier today , spent past few hours digging in.  i have little programming experience regarding hardware, pretty noobish here.  i ran through led tutorial; wired servo , experimented pwm movements, , found servo sweep tutorial.  while adding additional functionality current project, continuously sweeping servo @ core quite excited , running quickly.

[glow]is there way control servo speed via arduino?  i need slow sweep down crawl.  [/glow]

i using hitec hs-5475hb digital servo.  hitec offers servo programmer can change speed of servo's in 10% steps, expensive @ $150.  i hoping find method around via programming.  i noticed degree sweep method moves slower sweep naturally occurs when calling out 2 distinct endpoints, tried reducing sweep amount 1 degree decimal value, didn't work (i'm assuming integer value needed here).  otherwise, given lack of experience both servo's , c, i'm @ loss ... other excessively coding each individual location intermittent delay.

any ideas appreciated.


current code:

#include <servo.h>

servo laserservo;  // laser servo

int pos = 0;           // laser servo position variable

void setup()
{
 laserservo.attach(9);  // laser servo pwm control - arduino pin 9
}

void loop()
{
 for(pos = 0; pos < 120; pos +=1)   // sweep 0 120 degrees in steps of 1
 {
   laserservo.write(pos);           // sweep start position
   delay(15);                            // 15ms delay sweep
 }
 for(pos = 120; pos>=0; pos-=1)     // sweep 120 0 degrees in steps of 1
 {                                
   laserservo.write(pos);           // sweep end position
   delay(15);                            // 15ms delay sweep
 }
}

the 2 delay(15) functions determining rate of change servos. change delay(150) make ramp 10 times slower, delay (1500) make 100 times slower.

lefty

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