Toolboard + NO NPN probe

tecno

Did get rid of the line.

So what is wrong?

; Endstops
M574 X1 S1 P"!121.io2.in" ; configure active-high endstop for low end on X via pin ^io3.in
M574 Y1 S1 P"!io0.in" ; configure active-high endstop for low end on Y via pin ^io0.in
; M574 Z1 S1 P"^!121.io0.in" ;

; Z-Probe
M558 C"^!121.io0.in" P5 H10 F120 T8000 ; F120
G31 P50 X0 Y20 Z0 ;3.490
M557 X5:340 Y25:400 P4:4 ; define mesh grid

Greatful to get some help here.

jay_s_uk

@tecno might be a good idea to post your whole config and an output of M98 P"config.g"

tecno

@jay_s_uk

jay_s_uk

@tecno well there you go. use P8 and not P5

tecno

@jay_s_uk

a61bae5c-9ac9-475e-a5c0-a73e2738dc4c-config.g

Hard DIVE into the bed, led on probe lights up but no reaction to that

jay_s_uk

@tecno maybe you don't need the pullup?
best to check these things far away from the bed rather than relying on that as a last resort

tecno

@jay_s_uk
M558 C"!121.io0.in" P8 H10 F120 T8000

With probe not triggered Prove value is 0 triggered is 0

If I set probe not inverted Probe value is 1000 triggered still 1000

No change whatever I try

jay_s_uk

@tecno maybe you need a diode as detailed here https://docs.duet3d.com/en/User_manual/Connecting_hardware/Z_probe_connecting#npn-output-normally-open-inductive-or-capacitive-sensor?
other than that, no idea

infiniteloop

@tecno said in Toolboard + NO NPN probe:

With probe not triggered Prove value is 0 triggered is 0
If I set probe not inverted Probe value is 1000 triggered still 1000

Either you have no signal on the pin, or it is constantly tied to 3.3V by the probe. Check function of the probe stand-alone with a multimeter: What voltages do you read when the probe is triggered/untriggered?

A third possibility might be the port being defective, but first, check your probe signal.

tecno

@infiniteloop

NPN and no 3.3V ! Vin as these need 6-30V

Vin non triggered = out Vin
Triggered = out under 0.6V

So probe is OK

Looks like the Tollboard is busted again

tecno

@jay_s_uk said in Toolboard + NO NPN probe:

@tecno well there you go. use P8 and not P5

Select mode 5 (P5) in the M558 command. Invert the probe output From the manual you linked !

jay_s_uk

@tecno https://docs.duet3d.com/en/User_manual/RepRapFirmware/CAN_limitations
only P8 and P9 can be used on CAN boards

tecno

@jay_s_uk

Doh... too many variables so confusing it is.

How can i check port that it is working? Short GND to INP or 5V?

Set it as P8 so I can see Probe value 0 or 1000

infiniteloop

@tecno said in Toolboard + NO NPN probe:

Vin non triggered = out Vin

Do I understand this right: The signal has 6-30V non-triggered?

tecno

@infiniteloop

Yes

infiniteloop

@tecno said in Toolboard + NO NPN probe:

Yes

Then you've fried the port.

tecno

@infiniteloop

That is what I suspect, not the first toolboard to go south on me.

infiniteloop

@tecno said in Toolboard + NO NPN probe:

How can i check port that it is working? Short GND to INP or 5V?

Yes, you can short GND to INP. Does this trigger the endstop?

tecno

@infiniteloop said in Toolboard + NO NPN probe:

@tecno said in Toolboard + NO NPN probe:

How can i check port that it is working? Short GND to INP or 5V?

Yes, you can short GND to INP. Does this trigger the endstop?

not shorted = value is 0
shorted = value is 1000

So go figure what is wrong, I only have 1N4148 diode's at hand no BAT´s

infiniteloop

@tecno said in Toolboard + NO NPN probe:

not shorted = value is 0
shorted = value is 1000

That's good news, the board still works. Your test means that the probe doesn't pull down the signal strong enough to trigger. Try the diode - according to the documentation, this might work:

The diode should preferably be a small-signal Schottky diode such as BAT43 or BAT85, but a small signal silicon diode such as 1N4148 works for some people.