BL Touch deploys/retracts 2x when turn on board but nothing else

[MJCT]

Hi,
Using BL Touch 3.1 as a Z end stop as well
Duet WIFI without any expansion board
The probe deploys and retracts twice when I turn on the board. A red led turns on (doesn’t blink).
Problem, it simply doesn’t respond to any commands after that. For example I try “M280 P4 S10 I1” or “M280 P4 S10” the console responds with a green message like is everything all right but the probe doesn’t deploy at all.

I followed the instructions
https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe#Section_BLTouch

And confirmed “M307 H4 A-1 C-1 D-1” instead of “H3”was the right option over here
https://forum.duet3d.com/topic/13094/config-tool-m667-m669-and-disable-pwm-channel-bug

Thanks in advance

; Configuration file for Duet WiFi (firmware version 2.03)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2.1.3 on Thu Nov 28 2019 16:04:13 GMT+0000 (Hora padrão da Europa Ocidental)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"AA 300x300x600" ; set printer name

M667 S1 ; select CoreXY mode

; Network
M551 P"AA" ; set password
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P0 S1 ; physical drive 0 goes forwards
M569 P1 S1 ; physical drive 1 goes forwards
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S1 ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z4000.00 E92.60 ; set steps per mm
M566 X900.00 Y900.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
M906 X1750 Y1750 Z1750 E1750 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y15 Z0 S1 ; set axis minima
M208 X290 Y295 Z585 S0 ; set axis maxima

; Endstops
M574 X1 Y1 S0 ; set active low and disabled endstops
M574 Z1 S2 ; set endstops controlled by probe

; Z-Probe
M307 H4 A-1 C-1 D-1 ; disable heater on PWM channel for BLTouch
M558 P9 H0.5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X25 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height
M557 X20:270 Y20:275 S20 ; define mesh grid

; Heaters
M305 P0 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 0
M143 H0 S110 ; set temperature limit for heater 0 to 110C
M305 P1 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 1
M143 H1 S280 ; set temperature limit for heater 1 to 280C

; Fans
M106 P0 S0 I0 F500 H-1 ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S1 I0 F500 H1 T45 ; set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Tools
M563 P0 S"Extr 1" D0 H1 F0 ; define tool 0
G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C

; Custom settings are not defined

; Miscellaneous
T0 ; select first tool

; bed.g
; called to perform automatic bed compensation via G32
;
; generated by RepRapFirmware Configuration Tool v2.1.3 on Thu Nov 28 2019 16:04:13 GMT+0000 (Hora padrão da Europa Ocidental)
M561 ; clear any bed transform
G29 ; probe the bed and enable compensation

; deployprobe.g
; called to deploy a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v2.1.3 on Thu Nov 28 2019 16:04:13 GMT+0000 (Hora padrão da Europa Ocidental)
M280 P4 S10 I1 ; deploy BLTouch

; retractprobe.g
; called to retract a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v2.1.3 on Thu Nov 28 2019 16:04:13 GMT+0000 (Hora padrão da Europa Ocidental)
M280 P4 S90 I1 ; retract BLTouch

[Veti]

post a picture of your wiring on the duet

[MJCT]

@Veti

[MJCT]

BL OUT (white) – Z PROB IN @ Duet

BL GND (black) – GND @ Duet

BL 5V (red) – PIN1 5V @ Duet

BL GND (brown) – PIN2 GND @ Duet

BL Control (yellow) – PIN8 (Heater 3) @ Duet

Is this correct?

Just to confirm, as my BL Touch is a 3.1 version, I don’t need to do anything regarding 3.3 / 5v logic voltage, right?

[dc42]

It looks to me that you have the BLTouch control wire connected to the Heater 3 expansion pin, which is not the same as the E3 heater pin (it's the E2 heater pin). In which case, you need H3 in your M307 command, and P3 in your M280 commands - exactly as the instructions say.

[MJCT]

@dc42
Thaks for the help, I gess It solved the problem!