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Marlin, M42 and Servo

Posted by biskero 
Marlin, M42 and Servo
July 26, 2015 09:12AM

I have precompiled Marlin firmware installed on a printer Prusa i3 and would like to add couple of servos.

From what I understand I need to install a jumper on the 5V left pin of reset button and than the servos on right pins on reset button.
Now to test if servos works I use the following g-code:

M42 P11 S255 ; power ON servo 0 on pin D11
M280 P0 S90 ; set servo 0 to rest position

nothing happen!
My guess is that since I did not compile the firmware, servos are not enabled in the firmware and the M42 does not override the firmware configuration.
Is this the case? Any suggestions?

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