Physical Buttons on Duet 3 MB6HC RRF 3.01+

fractalengineer

Hi,

I've installed 4 physical buttons on my front panel and I can't seem to find how to program them to register;

This guide while very helpful seems obsolete due to the E component removed from the 3.01+ gcode

Here is my Config file I wrote based on the guide before I found out about the change in gcode, which doesn't seem to work

; External Triggers
M581 T1 E"io1.in" S1 R2					; Green button trigger 1 only when not printing (Load filament)
M581 T2 E"io1.in" S1 R1					; Green button trigger 2 only when printing (Lower Z)
M581 T3 E"io4.in" S1 R2					; Red button trigger 3 only when not printing (Unload filament)
M581 T4 E"io4.in" S1 R1					; Red button trigger 4 only when printing (Raise Z)
M581 T5 E"io2.in" S1 R2					; Black button trigger 5 only when not printing (Resume)
M581 T6 E"io2.in" S1 R1					; Black button trigger 6 only when printing (Pause, Stop)
M581 T7 E"io5.in" S1 R2					; Blue button trigger 7 only when not printing (LED strip on/off)
M581 T8 E"io5.in" S1 R1					; Blue button trigger 8 only when printing (LED strip on/off)

How are physical button external triggers supposed to be configured in the current RRF version?

I couldn't quite find a matching example in the M950 part

Thanks!

dc42

@fractalengineer use M950 commands with J parameter to configure those pins as general purpose input ports. Then you can use M581 commands to refer to those input ports.

Gianluca

Hi,
I tried to make a button connected to the GPIO port (io5.in) in my Duer 3 v.1.01, that, when pressed the botton, starts a macro. Unfortunately it still doesn't work.

I tried to do this:

wiring:

config.g:
M950 J5 C"io5.in" ; Trigger n°5 on io5.in
M581 T5 S1 R0 ; T5=Trigger logico 5, S1=trigger occurs on an inactive-to-active, R0=whether to trigger at any time

Macro: ( Any trigger number # greater than 1 causes the macro file sys/trigger#.g )

sys/trigger5.g

for example

M106 P3 C"LUCE LED" S0 ;TURN OFF LED

I need advice to try.

dc42

@gianluca in your M581 command you need to add parameter P5 to tell it to monitor the GpIn 5 port that you created in the M950 command. See the M581 documentation.

chimaeragh

@dc42 Does this apply to the Duet2 boards running RRF3.3 too? I am also building a control panel for my Ooznest Workbee and was just about to use the guide to configure the buttons.

Gianluca

@dc42
Thanks,
tonight I try with:
M950 J5 C "io5.in"
M581 P5 T5 S1 R0

I have a doubt.
Without the parameter "P5", measuring with the GND and io5.in with my tester, there are 3.3v and 3.0A.
Doesn't the switch in the figure below create a short circuit?

T3P3Tony

@gianluca the connection of io5.in to ground is what is measured (if the switch is normally open) or the break of the connection from io5.in to ground (if the switch is normally closed)

3.3v with the switch open as you show it is correct. It will not be 3A though, possibly 3mA

Gianluca

@t3p3tony
Thank you,
the important thing is that the wiring is correct (switch between GND and io5.in).
The measurement of 3.3v is certain, I hope I have used a wrong scale of the multimeter for the measurement of the amperes.
Tonight I make other tests and redo the the measurements with the multimeter.

fractalengineer

Ok I've got it mostly configured now.

I'm trying to have the buttons functions setup now

Starting with the LED strip, I'd like the blue button to switch the light on/off: currently wired on a fan output.

I came up with this based on the object model plugin and gcode meta pdf but it doesn't seem to work

Any tips on fixing it?

; /sys/trigger8.g
; Blue Button only when printing
; 24V LED ON/OFF

if fans[3].actualValue < 0
	set fans[3].actualValue = 1
else 
	set fans[3].actualValue = 0

Thanks!

dc42

@fractalengineer said in Physical Buttons on Duet 3 MB6HC RRF 3.01+:

if fans[3].actualValue < 0

Try replacing 0 by 0.5.

fractalengineer

@dc42 thank you, that makes sense, however that still didn't do it; I get this error message:

4/21/2022, 2:36:28 AM	Error: expected '=' in line 6 of trigger8.g

edit: Actually interesting,

I get the error message on line 6 when the fan is on 0
And line 8 when on 1

I also tried using the requestedvalue objectmodel with the same result

dc42

@fractalengineer you can only use the 'set' command to set your own global and local variables. Use M106 commands to change the fan speed.