Connecting Hobbyservo TowerPro SG90

gringo

I have a TowerPro Miniservo connected to out9 and we configured in the doc in a macro.
I have created two macros for testing one for a rotation to the right and one for a rotation to the left.

M950 S1 C "out9" ; right turn
M280 P1 S80

M950 S1 C"!out9" ; left turn
M280 P1 S80

A rotation to the right works fast
A rotation to the left works very slowly.

What could be the reason?
It is an analog servo. I have also tested a digital servo that only rotates clockwise.

Do you have any idea what I need to change to make the servo turn fast in both directions?

Thanks
Lars

achrn

You should define the servo only once (e.g. with M950 S1 C "out9") then you set it to different positions by using e.g.

M280 P1 S1000              ; right turn
M280 P1 S2000              ; left turn

(but I don't know your orientation, so left and right might be reversed).

Also, servos are all over the place in respect to timing - so you need to do quite a lot of trial-and-error to determine the appropriate range for the S parameter. Either use the range 0-543 or the range 544 and greater - one is a pseudo angle, the other is pulse-width-in-microseconds

gringo

@achrn

it works, thanks a lot.