I made a small module for my Duet, now it has auto shutdown when printing is finished. I use ATtiny13

https://youtu.be/KUflDwZl0t4

firmware https://drive.google.com/file/d/1YyQP6l3vGhKxd8smMGxREt9N4sPXuvQb/view?usp=sharing
default fuses

@droftarts
Now I think there is no need to repeat the experiment? boldnuts had the same problem with the 2.1beta4 update...

@jay_s_uk thanks, you helped me a lot!

@droftarts
Now I think there is no need to repeat the experiment? boldnuts had the same problem with the 2.1beta4 update...

@droftarts
unfortunately my printer is busy for a few days now, maybe I can do it later...

@OwenD
The stop.g file is present in my system, I entered the code into it:
M81 S1
It works, I didn't have to change M1 to M0 in the final code

@OwenD
there is another small problem, the printer does not turn off the power at the end of printing
i read this:
The use of M1 to end a job is deprecated. The M1 command no longer runs file sleep.g, instead it runs stop.g like M0. In future we expect to change the behaviour of M1 to be in line with the NIST standard.
what should i use instead of M1 ?

@OwenD
Unfortunately it didn't help...
I returned to 1.27, no more problems!

@OwenD

i did only M587 S"your-network-ssid" P"your-network-password"
I will do it
M552 S0
M588 S"*"
M587 S"yourSSID"
if it doesn't work, I'll go back to the old version of WifiServer

@OwenD
Until the update, I did not experience any problems with WiFi.
I have two bands on my router, but they have different SSIDs.
I didn't reset with M587, is that important?

@OwenD
config.g

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Sun May 03 2020 22:57:59 GMT+0300 (Москва, стандартное время)

; General preferences
M80 C"pson"
G90                                            ; send absolute coordinates...
M83                                            ; ...but relative extruder moves
M550 P"Uni_Plo"                                    ; set printer name

M669 K1                                        ; select CoreXY mode
M575 P1 S1 B57600


;*** End of factory test lines to be removed

; Network
M552 S1                                        ; enable network
M586 P0 S1                                     ; enable HTTP
M586 P1 S1                                     ; enable FTP
M586 P2 S0                                     ; disable Telnet

; Drives
M569 P0 S0                                     ; physical drive 0 goes backwards
M569 P1 S0                                     ; physical drive 1 goes backwards
M569 P2 S0                                     ; physical drive 2 goes backwards
M569 P3 S1                                     ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3                               ; set drive mapping
M350 Z32 E16 I0                                ; configure microstepping without interpolation
M350 X16 Y16 I1                                ; configure microstepping with interpolation
M92 X160.00 Y160.00 Z800.00 E414.00            ; set steps per mm
;M566 X600.00 Y600.00 Z40.00 E800.00 P1         ; Максимальный рывок (мм/сек)
M205 X15 Y15 Z1 E12                      	   ; Максимальный рывок (мм/сек)
M203 X12000.00 Y12000.00 Z800.00 E6000.00      ; Максимальная скорость (мм/мин)
;M201 X1500.00 Y1500.00 Z60.00 E1500.00         ; Максимальное ускорение (мм/сек^2)
M201 X2000 Y2000 Z60 E2000                     ; Максимальное ускорение (мм/сек^2)
M906 X1400 Y1400 Z1350 E700 I30                ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                        ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1                               ; set axis minima
M208 X280 Y186 Z288 S0                         ; set axis maxima

; Endstops
M574 X1 S1 P"xstop"                            ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop"                            ; configure active-high endstop for low end on Y via pin ystop
M574 Z2 S1 P"zstop"                            ; configure active-high endstop for high end on Z via pin zstop

; Z-Probe
;M558 P5 C"zprobe.in+zprobe.mod" H0 F120 T6000  ; set Z probe type to switch and the dive height + speeds
;G31 P500 X20 Y20 Z0.25                         ; set Z probe trigger value, offset and trigger height
;M557 X10:215 Y5:185 S20                        ; define mesh grid

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0 Q10                      ; create bed heater output on bedheat and map it to sensor 0
M143 H0 S150                                   ; set temperature limit for heater 0 to 120C
M307 H0 B0 S1.00                               ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0                                        ; map heated bed to heater 0
; M308 S1 P"e0temp" Y"thermistor" T100000 B4138  ; configure sensor 1 as thermistor on pin e0temp
M308 S1 P"spi.cs1" Y"rtd-max31865"			   ; create sensor number 1 as a PT100 sensor
M950 H1 C"e0heat" T1                           ; create nozzle heater output on e0heat and map it to sensor 1
M143 H1 S280                                   ; set temperature limit for heater 1 to 280C
M307 H1 B0 S1.00                               ; disable bang-bang mode for heater  and set PWM limit

; Fans
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 fan1 and set its frequency
M106 P1 S1 H1 T45                              ; set fan 1 value. Thermostatic control is turned on

; Tools
M563 P0 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
M911 S22.0 R23.0 P"M913 X0 Y0 G91 M83 G1 Z7 E-3 F500"	; Automatic power saving
M501

; Custom settings are not defined

M98 P"config.g"

HTTP is enabled on port 80
FTP is enabled on port 21
TELNET is disabled
Warning: Heater 0 predicted maximum temperature at full power is 321°C
Warning: Heater 1 predicted maximum temperature at full power is 670°C

I did an update from version 3_4_5
i don't have a file daemon.g

M122

= WiFi =
Interface state: active
Module is connected to access point
Failed messages: pending 0, notready 0, noresp 0
Firmware version 2.1beta3
MAC address bc:dd:c2:57:ae:51
Module reset reason: Turned on by main processor, Vcc 3.36, flash size 2097152, free heap 42924
WiFi IP address 172.16.1.50
Signal strength -47dBm, channel 13, mode 802.11n, reconnections 0
Clock register 00002002
Socket states: 0 0 0 0 0 0 0 0

@OwenD
Yes, I'm sure everything ended well

My printer is working, it's printing now...
however I don't like this error at the beginning...