Added GCode M282: Detach Servo #22759
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PR to the wrong branch, I will resubmit |
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Description
As detailled in issue #22757, I have trouble with RC servos and an LPC1768 based board. The servo signal jitters, which causes the servo to hum and run hot. This PR adds a GCode (M282) which allows the user to detach servos whenever they want. It fixes the problem that I have, but it might be useful on other boards and in other scenarios as well.
With this, I can disable the servo after a tool change and thus stop it from humming and running hot. I already lost one servo to overheating.
DEACTIVATE_SERVOS_AFTER_MOVE cannot be used in my use case, since my servo is too weak to hold it's position during the tool change when detached.
So my current scenario is, I use M280 to use the servo in the right position for the tool change (M280 automatically attaches a servo), then I move the print head to perform the tool change, then I use M282 to detach the servo. This keeps it nice, quiet and cool.
Requirements
This PR requires a Servo
Benefits
Allows for manually detaching servos, keeping them powered as long as necessary, and keeping them detached, quiet and cool, whenever they are not needed.
Configurations
Nothing special, you just need a servo and enable the servo with
#define NUM_SERVOS 1Related Issues
#22757