Macro Creation Tutorial

Macros
43

The clue is four lines earlier:

{% if 'bed_mesh' not in printer %}

bed_mesh is an attribute of the printer object, which is why this line checks to see if the printer object has a bed_mesh attribute before trying to interact with it.

When it comes to actually interacting with it, you have to access it as an attribute of the printer object: printer.bed_mesh

So the offending line should be revised to read:

{% if printer.bed_mesh.profile_name is none %}
44

Oh my gosh, Iā€™m such a dumbā€¦ Thank you. I havenā€™t been able to test it with the revised code, but that is it I bet. I forgot the freaking printer objectā€¦

45

Iā€™m struggling with syntax to combine literal strings with numeric variables. Have googled till my fingers are sore, looked at a zillion examples, and tried every imaginable combination of quotes, apostrophes, brackets, braces, plus signs, tildes, ("'{}+~) and more. I have tried combining into new string variables first, etc. Nothing works. Either Klipper throws an error when restarting, or an error when running the macro, or I just get blank results.
Here is my latest of many attempts. Should be pretty obvious what Iā€™m attempting.

[gcode_macro SEND_THIS]
gcode:
    # This Works!
    #SHOW_THIS S="This works without any parameters"
    # But none of of this does.  What is syntax to include variables??
    SHOW_THIS S='The bed is currently at ' + {bed_temp} + ' degrees Celsius.'
    #{ set qq = "Hello World" }
    #qq: "Hello World"
    #qq: 'The bed is currently at' + {bed_temp} + "Degrees Celsius" %}
    #qq: ["The bed is currently at " + {bed_temp} + "Degrees Celsius"]
    #SHOW_THIS {qq}
    #SHOW_THIS S='The bed is ' ~ bed_temp
    
[gcode_macro SHOW_THIS]
gcode:
	M117 {params.S}
46

Youā€™re overcomplicating things. If you want to include the value of the variable bed_temp, the syntax is { bed_temp }.

Everything outside of Jinja delimiters is a static string, so you canā€™t (and donā€™t need to) put operators or extra quotes or anything else to indicate concatenation.

    SHOW_THIS S="The bed is currently at {bed_temp} degrees Celsius."

If you really want to do the concatenation in Jinja itā€™s possible, but you have to enclose the whole expression in the Jinja delimiters and overall itā€™s going to be less readable.

    SHOW_THIS S="{ "The bed is currently at" ~ bed_temp ~ "degrees Celsius." }"
47

@garethky Hi! I have 4 servos, controlling each separately is not very convenient and not so elegant. Iā€™ve been thinking about your way of using objects for my task for a while, but I canā€™t find a way. Now I have:

[delayed_gcode _TOGGLE_SERVO1]
gcode:
    {% set unit_data = printer['gcode_macro SERVO_MODE_U1'] %}
    {% set servo_angle = unit_data.servo_angle %}
    
    # { action_respond_info("----------_TOGGLE_SERVO1---------- servo_angle  %s" %(servo_angle))}
    {% if servo_angle == printer['gcode_macro SERVO_MODE_U1'].servo_open_angle %}
        SET_SERVO SERVO=srv0 ANGLE={printer['gcode_macro SERVO_MODE_U1'].servo_closed_angle}
        SET_GCODE_VARIABLE MACRO=SERVO_MODE_U1 VARIABLE=servo_angle VALUE={printer['gcode_macro SERVO_MODE_U1'].servo_closed_angle}
        UPDATE_DELAYED_GCODE ID=_TOGGLE_SERVO1 DURATION={printer['gcode_macro SERVO_MODE_U1'].servo_closed_time}
    {% elif servo_angle == printer['gcode_macro SERVO_MODE_U1'].servo_closed_angle %}
        SET_SERVO SERVO=srv0 ANGLE={printer['gcode_macro SERVO_MODE_U1'].servo_open_angle}
        SET_GCODE_VARIABLE MACRO=SERVO_MODE_U1 VARIABLE=servo_angle VALUE={printer['gcode_macro SERVO_MODE_U1'].servo_open_angle}
        UPDATE_DELAYED_GCODE ID=_TOGGLE_SERVO1 DURATION={printer['gcode_macro SERVO_MODE_U1'].servo_open_time}
    {%endif%}

but, I see it like this

    {%set servos = {1: {'servo_name' : 'servo_u1',
                            'duration'      : 10,
                            'servo_open'    : 5,
                            'servo_closed'  : 60,
                            'state'         : 'open'
                        },
                    2: {'servo_name'        : 'servo_u2',
                            'duration'      : 20,
                            'servo_open'    : 5,
                            'servo_closed'  : 60,
                            'state'         : 'open'
                        }
} %}

and then
{% for servo in servos -%}
with the transmission of the servo number and the corresponding conditions through a variable of the complex data type. Do you think there is a way to implement this?