Macros to change neopixels color based on temperature

printer.cfg

[temperature_sensor rpi_sensor]
sensor_type: rpi_temperature
min_temp: -40
max_temp: 85

[pause_resume]

[neopixel my_neopixel]
pin: PA8

[delayed_gcode pre_heat_leds]
gcode:
    heating_led_indicator
    {% if (printer.heater_bed.temperature|int) < (printer.heater_bed.target|int) or (printer.extruder.temperature|int) < (printer.extruder.target|int) %}
        UPDATE_DELAYED_GCODE ID=pre_heat_leds DURATION=2
        UPDATE_DELAYED_GCODE ID=cooling_leds DURATION=0
    {% else %}
      SET_LED LED=my_neopixel RED=1.0 GREEN=1.0 BLUE=1.0
    {% endif %}

[delayed_gcode cooling_leds]
gcode:
    cooling_led_indicator
    {% set min_temp = printer["temperature_sensor rpi_sensor"].temperature %}
    {% if (printer.heater_bed.temperature|int) > min_temp or (printer.extruder.temperature|int) > min_temp %}
        UPDATE_DELAYED_GCODE ID=cooling_leds DURATION=2
        UPDATE_DELAYED_GCODE ID=pre_heat_leds DURATION=0
    {% else %}
      SET_LED LED=my_neopixel RED=0 GREEN=0 BLUE=0
    {% endif %}

[gcode_macro heating_led_indicator]
gcode:
  {% if printer.extruder.target > 0 %}
    {% set hotend = [printer.extruder.temperature / printer.extruder.target,1]|min %}
    SET_LED LED=my_neopixel RED={hotend} GREEN={1-hotend} BLUE=0
  {% endif %}

[gcode_macro cooling_led_indicator]
gcode:
  {% set min_temp = printer["temperature_sensor rpi_sensor"].temperature %}
  {% set hotend = [min_temp / printer.extruder.temperature, 1]|min %}
  SET_LED LED=my_neopixel RED={1-hotend} GREEN={hotend} BLUE=0
  
[gcode_macro hot_end_and_bed_wait]
gcode:
    {% if (printer.extruder.temperature|int) < (printer.extruder.target|int) or (printer.heater_bed.temperature|int) < (printer.heater_bed.target|int) %}
            {% if not printer.pause_resume.is_paused %}
                PAUSE
            {% endif %}
        UPDATE_DELAYED_GCODE ID=hot_end_and_bed_wait-delayed DURATION=5
    {% else %}
        UPDATE_DELAYED_GCODE ID=hot_end_and_bed_wait-delayed DURATION=0
        {% if printer.pause_resume.is_paused %}
            RESUME
        {% endif %}
     {% endif %}

[delayed_gcode hot_end_and_bed_wait-delayed]
gcode:
    {% if (printer.extruder.temperature|int) >= (printer.extruder.target|int) and (printer.heater_bed.temperature|int) >= (printer.heater_bed.target|int) %}
            {% if printer.pause_resume.is_paused %}
                RESUME
            {% endif %}
    {% else %}
        M105 ; update host software with temperature information
        UPDATE_DELAYED_GCODE ID=hot_end_and_bed_wait-delayed DURATION=5
    {% endif %}

[gcode_macro PRINT_START]
default_parameter_BED_TEMP: 60
default_parameter_EXTRUDER_TEMP: 210
gcode:
    # Start bed heating
    M140 S{BED_TEMP}
    # Start nozzle heating
    M104 S{EXTRUDER_TEMP}

    # Start LEDs
    heating_led_indicator
    UPDATE_DELAYED_GCODE ID=pre_heat_leds DURATION=2

    #Home
    G28

    #wait for hot end and bed temp, don't block delayed_gcode
    HOT_END_AND_BED_WAIT