Fans in Firmware 3.xx

peirof

Hi,

I've gotten to the point of creating the fans, extruder, and heaters. I am reading that the method has changed a lot, and I have some doubts:

A- The fans are "created" with the gcode M950, in my case (M950 F0 C "! Fan0")
B- The fan is configured with the gcode M106, in my case (M106 P0 S0 I0 F500 H-1)

Doubts:

In the M950, the (!), Implies that the signal is inverted, so if when I turn on the Duet board, the fan starts spinning, I have to remove the fan, leaving (M950 F0 C "fan0")
If in M950 I say that it is inverted, with the (!) and in M106 I put the modifier (I1), it is the same as NOT putting admiration (!) and putting I0 (or nothing) in M106 ...
The fan that in M950 is F0, in M106 it is P0. Do not?
If you wanted to configure the F0, as controlled by temperature, you would have to change the M106 to (M106 P0 T50)

jay_s_uk

@peirof i'm not sure what you're asking.
But I can tell you the use of I in M106 isn't valid in RRF3
Innn Invert PWM (I1), disable fan (I-1), or normal mode (I0, default) (not supported in RRF3, use M950)

peirof

@jay_s_uk

If M106 its not valid RRF3.... How create and setup fans in RRF3?

jay_s_uk

@peirof here's what I have for my 2 fans on my ender 3

M950 F0 C"fan0" Q500                           ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1                                 ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"fan1" Q500                         ; create fan 1 on pin out4 and set its frequency
M106 P1 S1 H1 T45                            ; set fan 1 value. Thermostatic control is turned on

peirof

@jay_s_uk thx