Query E4 state in object model
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Well the title says what I think I need to do, but I can't work out how to do it (I did look at M409 as described here: https://forum.duet3d.com/topic/14878/conditional-gcode-expressions/2?_=1590053013630)
My system:
Duet2 Wifi, Duex5, PanelDue
Latest RRF 3.1.1I have installed 4 momentary push buttons with a PanelDue, these connect GPIO1 - GPIO4 to earth when activated, I have assigned them the macro files trigger2.g - trigger4.g. I want one button to turn on/off some LED lighting, I have "on" working but currently need to use a second button to turn off, presumably this can be done with conditional Gcode but I can't see how to query the current state of the output E4?
image url) code_text ```config.g : External trigger inputs ; these are the 4 push buttons on my front panel, 1 (top) - 4 (bottom) M950 J1 C"^duex.gp1" ; define input pin 1 using GPIO1 and enable pullup M581 P1 T2 S0 R0 ; associate input pin 1 with trigger2.g (top switch) M950 J2 C"^duex.gp2" ; define input pin 2 using GPIO2 and enable pullup M581 P2 T3 S0 R0 ; associate input pin 2 with trigger3.g M950 J3 C"^duex.gp3" ; define input pin 3 using GPIO3 and enable pullup M581 P3 T4 S0 R0 ; associate input pin 3 with trigger4.g M950 J4 C"^duex.gp4" ; define input pin 4 using GPIO4 and enable pullup M581 P4 T5 S0 R0 ; associate input pin 4 with trigger5.g (bottom switch) ; output ports M950 P0 C"duex.e4heat" ; assign output pin 0 to E4 on the duex5 - enclosure lights ;M950 P1 C"!duex.pwm4" ; assign output pin 1 to E5 on the duex5 - bed lights trigger5.g file ; Trigger number 0 causes an emergency stop as if M112 had been received. ; Trigger number 1 causes the print to be paused as if M25 had been received. ; Any trigger number # greater than 1 causes the macro file sys/trigger#.g to be executed. ; need conditional Gcode here so I can select the value of Sx depending on the current state of E4 M42 P0 S0 ; turn on output pin 0 (base lights) M118 S"Switch 1 pressed" ; print message for debugging purposes -
Last 2 lines of code should read as follows (I can't edit them because my update got flagged as spam!)
M42 P0 S1 ; turn on output pin 0 (base lights) M118 S"Switch 4 pressed" ; print message for debugging purposes -
Try something like
if {state.gpOut[0].pwm = 1} echo "Pin 0 is high" elif {state.gpOut[0].pwm = 0} echo "Pin 0 is low" else echo {"Pin 0 value is" ^ state.gpOut[0].pwm} -
Or something like this
while iterations < #state.gpOut if {state.gpOut[iterations]=null} echo {"gpOut " ^ iterations ^ " is not assigned"} G4 S1 else echo {"gpOut " ^ iterations ^ " value is " ^ state.gpOut[iterations].pwm} G4 S1 -
That worked, thanks.
In case anyone else needs it, this is the working config:
config.g
: External trigger inputs ; these are the 4 push buttons on my front panel, 1 (top) - 4 (bottom) M950 J1 C"^duex.gp1" ; define input pin 1 using GPIO1 and enable pullup M581 P1 T2 S0 R0 ; associate input pin 1 with trigger2.g (top switch) M950 J2 C"^duex.gp2" ; define input pin 2 using GPIO2 and enable pullup M581 P2 T3 S0 R0 ; associate input pin 2 with trigger3.g M950 J3 C"^duex.gp3" ; define input pin 3 using GPIO3 and enable pullup M581 P3 T4 S0 R0 ; associate input pin 3 with trigger4.g M950 J4 C"^duex.gp4" ; define input pin 4 using GPIO4 and enable pullup M581 P4 T5 S0 R0 ; associate input pin 4 with trigger5.g (bottom switch) ; output ports M950 P0 C"duex.e4heat" ; assign output pin 0 to E4 on the duex5 - enclosure lights ;M950 P1 C"duex.e5heat" ; assign output pin 1 to E5 on the duex5 - bed lightstrigger5 file
; Trigger number 0 causes an emergency stop as if M112 had been received. ; Trigger number 1 causes the print to be paused as if M25 had been received. ; Any trigger number # greater than 1 causes the macro file sys/trigger#.g to be executed. ; trigger5 runs if switch 4 pressed", turns the LED connected to E4 on/off ; checks state of output P0 and reverses the state if {state.gpOut[0].pwm = 1} M42 P0 S0 ; turn off output pin 0 elif {state.gpOut[0].pwm = 0} M42 P0 S1 ; turn on output pin 0 else echo {"Pin 0 value is" ^ state.gpOut[0].pwm} M42 P0 S0
