Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: tipipliou on March 13, 2010, 02:34:32 PM

Title: servo velocity
Post by: tipipliou on March 13, 2010, 02:34:32 PM

hello
can i change servo velocity by changing the command pulse frequency? or it has only one velocity?
thanks

Title: Re: servo velocity
Post by: little-c on March 13, 2010, 03:13:28 PM

if its modifyed for continual rotation, the PMW signal determins velocity, ie the futher the position is from center, the faster it rotates.


If its a normal servo, its velocity is set by the servo. you can adjust this velocity by changing where you tell the servo to go to. fastest, is the position you want. slow it down by sending it to intermediate positions.

Title: Re: servo velocity
Post by: tipipliou on March 13, 2010, 11:25:36 PM

so the frequency has nothing to do with the velocity? it's only about pulse width?

Title: Re: servo velocity
Post by: Joker94 on March 13, 2010, 11:29:56 PM

yep the pulse width is what sends a non modified servos to a particular angle and sending a signal for a particular angle to a modified servo will determine its speed.

this concept is mentioned in the modification tutorial and is really handy to know when working with the SoR header files and code.

Title: Re: servo velocity
Post by: tipipliou on March 13, 2010, 11:39:20 PM

ok,thanks a lot for your help