I am using an ultimaker original which is controlled by an arduino Mega and a ramps shield.
The controller usually controls stepper motors. However I want to control a 5V servo motor also (Model: SM-S2309s) via pin 13 on the shield using Repetier Host.
i.e I want to write gcode in Repetier to control the angle of the servo.
I have uncommented the code in the Marlin firmware and tried activating the servo motor via G-code commands: M340 P1 S500
but I haven't been able to succeed.
#define NUM_SERVOS 1 // Servo index starts with 0 for M280 command)
There is power getting to the servo as I can here a small buzz when I upload the firmware, however I can't get it to move.
Any help would be appreciated.