How to put LED control on the web interface and touch screen

[jay_s_uk]

You could set the LED's up as a fan.
That way you could use a fan slider on DWC.

In terms of getting the value to revert after X seconds, I'm not sure that will be possible until variables are available as part of 3.02

[fxstein]

@jay_s_uk Can a heater output be turned into a fan? The reason I had to hook it up to heater 5 was because I am drawing some 4A for all the combined LEDs, whereas fan outputs only support 1.5A

M950 does not seem to allow both heater and fan to be specified at the same time.

Thanks!

[dc42]

Yes with RRF 3.1 you can configure a heater output to support a fan.

The timeout can probably be done using the daemon.g file.

[jay_s_uk]

You can certainly use a heater output has a fan.

Your M307 command is disabling heater 6 from being a heater so you're halfway there.
You can then use M106 to assign P6 as a fan and control it that way.

In RRF3, its much easier to assign pins as nothing has a default use

[fxstein]

@dc42 Upgrading to 3.1 is on my roadmap. As soon as we get the next printer put together I will go there.

Thanks a lot for the suggestion!

[fxstein]

@jay_s_uk said in How to put LED control on the web interface and touch screen:

You can certainly use a heater output has a fan.

Your M307 command is disabling heater 6 from being a heater so you're halfway there.
You can then use M106 to assign P6 as a fan and control it that way.

In RRF3, its much easier to assign pins as nothing has a default use

Ah - just what I was looking for.

Here is the new config.g snippet in case others are looking to control LEDs with the Duet/Duex through the web interface:

; LED Lights - Duex5
M307 H6 A-1 C-1 D-1				; Use heater 5 for LED lights on Duex5
M106 P6 S1.0 C"LEDs" A6				; Map to fan control, name and set to full bright

Now with a web frontend slider:

Thank you very much!

[fxstein]

And found a way to lower the light level after 30 mins. A bit of a hack but uses the fan controls blip timer:

; LED Lights - Duex5
M307 H6 A-1 C-1 D-1				; Use heater 5 for LED lights on Duex5
M106 P6 B1800 C"LEDs" A6			; Map to fan control, name and set to full bright for 30 min
M106 P6 S0.01					; Trigger burst of 1800 sec 30 min full bright than go to 1%

This will turn on the LEDs to full bright on startup or whenever coming off 0%, then go to the selected percentage.

Only downside is that you cannot dim the LEDs during those 30 min, but you can turn them off.

[Phaedrux]

@fxstein That's clever.

[RODOKAS]

hello friends, I tried to turn on my lighting in this way on rrf3 and was unsuccessful, could my code be wrong?
; Iluminação
M950 F3 C"exp.heater5"
M106 P3 B300 C"LUZ" S1
M106 P3 S0.2
the slider appears to me, but I don’t have the lighting that used to be connected directly to the 12v

[dc42]

How have you connected the lighting to the Duet? exp.heater5 is a 3.3V level control signal, not suitable for driving LEDs directly.

[RODOKAS]

@dc42 thanks david, i totally forgot that it is 3.3v, i connect to exp.heater5 and gnd, that was my mistake. is there a pin on the expansion post to turn on the leds without the use of expansion?