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docs: Add documentation for [delayed_gcode]

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Signed-off-by:  Eric Callahan <arksine.code@gmail.com>
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Arksine 2019-06-29 17:13:35 -04:00 • committed by KevinOConnor
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docs/Command_Templates.md
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@ -186,3 +186,64 @@ gcode:
Be sure to take the timing of macro evaluation and command execution
into account when using SET_GCODE_VARIABLE.
### Delayed Gcodes
The [delayed_gcode] configuration option can be used to execute a delayed
gcode sequence:
```
[delayed_gcode clear_display]
gcode:
M117
[gcode_macro load_filament]
gcode:
G91
G1 E50
G90
M400
M117 Load Complete!
UPDATE_DELAYED_GCODE ID=clear_display DURATION=10
```
When the `load_filament` macro above executes, it will display a
"Load Complete!" message after the extrusion is finished. The
last line of gcode enables the "clear_display" delayed_gcode, set
to execute in 10 seconds.
The `initial_duration` config option can be set to execute the
delayed_gcode on printer startup. The countdown begins when the
printer enters the "ready" state. For example, the below delayed_gcode
will execute 5 seconds after the printer is ready, initializing
the display with a "Welcome!" message:
```
[delayed_gcode welcome]
initial_duration: 5.
gcode:
M117 Welcome!
```
Its possible for a delayed gcode to repeat by updating itself in
the gcode option:
```
[delayed_gcode report_temp]
initial_duration: 2.
gcode:
{printer.gcode.action_respond_info(
"Extruder Temp: %.1f" %
(printer.extruder0.temperature))}
UPDATE_DELAYED_GCODE ID=report_temp DURATION=2
```
The above delayed_gcode will send "// Extruder Temp: [ex0_temp]" to
Octoprint every 2 seconds. This can be canceled with the following
gcode:
```
UPDATE_DELAYED_GCODE ID=report_temp DURATION=0
```