How to set the color of an LED Light in VPX using the MPF Bridge Python COM library

[bernarma]

I am testing out some integrations between VPX and MPF using the Python COM library and was wondering how the RGB value of the LED can be obtained?

I have this code but at the moment, the values I am seeing are so am unable to fully understand how to utilise the values:

...
2024-10-01 15:30:10:0273 : UpdateLamps : LampNoPar=l134, StatePar=True
2024-10-01 15:30:10:0277 : UpdateLEDBrightness : LampNoPar=l26, StatePar=0.529999988591298
2024-10-01 15:30:10:0292 : UpdateLamps : LampNoPar=l26, StatePar=False
2024-10-01 15:30:10:0304 : UpdateLEDBrightness : LampNoPar=l26, StatePar=0.219999986961484
2024-10-01 15:30:10:0324 : UpdateLEDBrightness : LampNoPar=l26, StatePar=5.99999888241292E-02
2024-10-01 15:30:10:0343 : UpdateLEDBrightness : LampNoPar=l26, StatePar=0
2024-10-01 15:30:10:0625 : UpdateLEDBrightness : LampNoPar=l26, StatePar=-8.99999867286533E-02
2024-10-01 15:30:10:0636 : UpdateLEDBrightness : LampNoPar=l26, StatePar=0.070000013737008
2024-10-01 15:30:10:0656 : UpdateLEDBrightness : LampNoPar=l26, StatePar=0.220000012572855
2024-10-01 15:30:10:0664 : UpdateLEDBrightness : LampNoPar=l26, StatePar=0.380000013038516
2024-10-01 15:30:10:0683 : UpdateLamps : LampNoPar=l65, StatePar=False
2024-10-01 15:30:10:0683 : UpdateLamps : LampNoPar=l134, StatePar=False
2024-10-01 15:30:10:0687 : UpdateLamps : LampNoPar=l26, StatePar=True
2024-10-01 15:30:10:0695 : UpdateLEDBrightness : LampNoPar=l26, StatePar=0.690000012340024
2024-10-01 15:30:10:0714 : UpdateLEDBrightness : LampNoPar=l26, StatePar=0.850000012805685
2024-10-01 15:30:10:0734 : UpdateLEDBrightness : LampNoPar=l26, StatePar=1
2024-10-01 15:30:10:0753 : UpdateLamps : LampNoPar=l11, StatePar=True
2024-10-01 15:30:11:0027 : UpdateLEDBrightness : LampNoPar=l26, StatePar=1.02999998626299
2024-10-01 15:30:11:0046 : UpdateLEDBrightness : LampNoPar=l26, StatePar=0.869999985797331
2024-10-01 15:30:11:0054 : UpdateLEDBrightness : LampNoPar=l26, StatePar=0.719999984633177
2024-10-01 15:30:11:0074 : UpdateLamps : LampNoPar=l65, StatePar=True
...

	'Process Changed Lights
	ChgLamp = Controller.ChangedLamps
	if not isempty(ChgLamp) Then	
		for ii=0 to UBound(ChgLamp)
			UpdateLamps ChgLamp(ii,0), ChgLamp(ii,1)
		Next
	end If

	'Process Changed LEDs
	ChgLED = Controller.ChangedLEDs
	if not isempty(ChgLED) Then	
		for ii=0 to UBound(ChgLED)
			UpdateLamps ChgLED(ii,0), ChgLED(ii,1)
		Next
	end If

	'Process Changed BrightnessLEDs
	ChgLEDBrightness = Controller.ChangedBrightnessLEDs
	if not isempty(ChgLEDBrightness) Then	
		for ii=0 to UBound(ChgLEDBrightness)
			UpdateLEDBrightness ChgLEDBrightness(ii,0), ChgLEDBrightness(ii,1)
		Next
	end If

For completeness here is a sample of how my LED lights are being specified:

  led_30:
    subtype: rgb
    channels:
      red:
        number: l30
      green:
        number: l31
      blue:
        number: l32

The code above was heavily based on what was done in the sample VPX project but there doesn't appear to be anything related to RGB lights/colors. Hopefully it is a fairly simple thing that I am overlooking but would appreciate a little help if anyone could point me in the right direction.

[bernarma]

I have been able to resolve this issue by updating the VPX code as follows:

	Private Sub Update
		dim RGBColor: RGBColor = RGB(255 * rOn * rBrightness, 255 * gOn * gBrightness, 255 * bOn * bBrightness)
		Light.color = RGBColor
		Light.colorfull = RGB(255 * rOn,255 * gOn,255 * bOn)
		Light.state = 1
	End Sub

Not sure how correct it is but for now the correct colors appear to be showing so will leave it at that for now until I get to the polishing phase of the project.