@timothyz rs485 is also only available in 3.6

@wanwan These are my settings:

; Configuration file for Duet WiFi / Ethernet running RRF3 on E3D Tool Changer ; executed by the firmware on start-up ; modified by JSA 01-10-21 ; Gloomyandy version for RRF on Fly super8pro ; General preferences M111 S0 ; Debugging off G21 ; Work in millimetres G90 ; Send absolute coordinates... M83 ; ...but relative extruder moves ;M555 P2 ; Set firmware compatibility to look like Marlin M669 K1 ; Select CoreXY mode ; Network M550 P"ToolChanger" ; Set machine name M552 S1 ; Enable Networking M586 P0 S1 ; Enable HTTP M586 P1 S0 ; Disable FTP M586 P2 S0 ; Disable Telnet ; We need a delay for CAN boards to connect May as well do something usefull! ; pebble wiper m950 s1 C"pwm1" Q333 M280 P1 S140 G4 S1 M280 P1 S10 G4 S1 G4 S5 ; Neopixels M950 E0 C"20.rgbled" M150 R255 B255 U255 S3 M150 R0 B0 U0 S2 M150 R255 B165 U 0 S1 ; Neopixels M150 R255 B255 U255 S3 M150 R0 B0 U0 S2 M150 R255 B165 U 0 S1 ; Drive direction M569 P0 S0 ; Drive 0 B M569 P1 S0 ; Drive 1 A M569 P2 S1 ; Drive 2 Z M569 P3 S0 ; Drive 3 E0 ;M569 P4 S0 ; Drive 4 E1 M569 P124.0 S1 ; Toolboard ;M569 P5 S1 ; Drive 5 COUPLER M569 P20.0 S1 ; Drive 5 COUPLER M569 P22.0 S1 ; Toolboard M569 P23.0 S1 ; Toolboard M569 P6 S0 D3 V40 ; Drive 6 Pebble Wiper M569 P7 S0 ; Drive 7 UNUSED ;M584 X1 Y0 Z2 C5 A6 E3:4:22.0:23.0 ; Apply custom drive mapping M584 X1 Y0 Z2 C20.0 A6 E3:124.0:22.0:23.0 ; Apply custom drive mapping M98 P"SetSystemLimits.g" ;M208 X-35:328.5 Y-49:243 Z0:280 C-45:360 ; Set axis maxima & minima ;M208 X-35:314.9 Y-49:156 Z0:280 C0:500 ; Set axis maxima & minima M208 A0:71 M350 E16:16:16:16 I1 ; Configure microstepping with interpolation M350 A16 I1 ; Configure microstepping with interpolation M350 C16 I1 ; Configure microstepping with interpolation M350 X16 Y16 Z16 I1 ; Configure microstepping with interpolation M92 X100 Y100 Z800 C200 A360 E 397: 397: 397: 397 ; Set steps per mm assuming x16 microstepping ;M566 X800 Y800 Z50 C2 E800:800:800:800 ; Set maximum instantaneous speed changes (mm/min) ;M566 X750 Y750 Z50 C2 A360 E200:200:200:200 ; Set maximum instantaneous speed changes (mm/min) M566 X500 Y500 Z50 C2 A360 E500:500:500:500 ; Set maximum instantaneous speed changes (mm/min) M203 X35000 Y35000 Z1200 C5000 A2000 E5000:5000:5000:5000 ; Set maximum speeds (mm/min) ;M201 X6000 Y6000 Z400 C500 E2500:2500:2500:2500 ; Set accelerations (mm/s^2) ;M201 X2000 Y2000 Z400 C500 A500 E2500:2500:2500:2500 ; Set accelerations (mm/s^2) M201 X8000 Y8000 Z400 C500 A500 E2500:2500:2500:2500 ; Set accelerations (mm/s^2) M906 X1800 Y1800 Z1330 I25 ; Idle motion motors to 25% M906 E1000:1000:1000:1000 C500 I10 ; Idle extruder motors to 10% M906 A500 I30 ; Idle pebble wiper platform to 30% ; Endstops M574 X1 Y1 S3 ; Set X / Y endstop stall detection M574 C0 Z0 ; No C Z endstop M574 A2 S3 ; Tool detection switch M950 J0 C"^20.io2.in" ; Z probe M558 P8 C"^20.io1.in" H2 F500:100 I0 S0.005 A10 T20000 ; Set Z probe type to switch, the axes for which it is used and the dive height + speeds G31 P200 X0 Y0 Z0 ; Set Z probe trigger value, offset and trigger height M557 X10:290 Y0:200 S20 ; Define mesh grid M308 A"SZP dummy" S13 Y"thermistor" P"20.temp1" M308 A"SZP coil" S12 Y"thermistor" P"20.temp0" ;Stall Detection M915 X Y S2 F0 H400 R0 ; X / Y Axes M915 A S-35 F0 H200 R0 ; Pebble Wiper ; Heaters M308 S0 P"adc0" Y"thermistor" A"Bed" T100000 B4138 C0 ; Set thermistor M950 H0 C"bedout" T0 Q10 ; Bed heater M143 H0 S225 ; Set temperature limit for heater 0 to 225C M140 H0 ; Bed heater is heater 0 ;M307 H0 B0 R1.276 C420.3 D5.16 S1.00 V24.2 M307 H0 R1.307 K0.285:0.000 D5.84 E1.35 S1.00 B0 M308 S1 P"adc1" Y"thermistor" A"T0" T100000 B4725 C7.06e-8 ; Set thermistor M950 H1 C"heat0" T1 ; Extruder 0 heater M143 H1 S305 ; Set temperature limit for heater 1 to 300C ;M307 H1 R1.843 K0.323:0.207 D5.86 E1.35 S1.00 B0 V24.2 M307 H1 R1.656 K0.313:0.214 D6.33 E1.35 S1.00 B0 V23.8 ;M308 S2 P"adc2" Y"thermistor" A"T1" T100000 B4725 C7.06e-8 ; Set thermistor ;M308 S2 P"124.temp0" Y"thermistor" A"T1" T100000 B4725 C7.06e-8 R1000 h-84 l100 ; calibrated with jumper set for 1K M308 S2 P"124.temp0" Y"thermistor" A"T1" T100000 B4725 C7.06e-8 ;M950 H2 C"heat1" T2 ; Extruder 0 heater M950 H2 C"124.out0" T2 ; Extruder 0 heater M143 H2 S305 ; Set temperature limit for heater 2 to 300C ;M307 H2 R1.742 K0.343:0.155 D7.12 E1.35 S1.00 B0 V24.2 ;M307 H2 R1.750 K0.322:0.203 D7.58 E1.35 S1.00 B0 V24.2 M307 H2 R3.254 K0.383:0.248 D2.13 E1.35 S1.00 B0 V23.3 ; Revo M308 S3 P"22.temp0" Y"thermistor" A"T2" T100000 B4725 C7.06e-8 ; Set thermistor M950 H3 C"22.out0" T3 ; Extruder 0 heater M143 H3 S305 ; Set temperature limit for heater 3 to 300C ;M307 H3 R1.904 K0.321:0.152 D4.78 E1.35 S1.00 B0 V23.8 M307 H3 R3.971 K0.441:0.227 D2.01 E1.35 S1.00 B0 V23.3 ; Revo M308 S4 P"23.temp0" Y"thermistor" A"T3" T100000 B4725 C7.06e-8 ; Set thermistor M950 H4 C"23.out0" T4 ; Extruder 0 heater M143 H4 S305 ; Set temperature limit for heater 4 to 300C M307 H4 R1.895 K0.311:0.113 D6.74 E1.35 S1.00 B0 V23.8 ; Tools M563 P0 S"T0" D0 H1 F2 ; Define tool 0 G10 P0 X0 Y0 Z0 ; Reset tool 0 axis offsets G10 P0 R0 S0 ; Reset initial tool 0 active and standby temperatures to 0C M563 P1 S"T1" D1 H2 F4 ; Define tool 1 G10 P1 X0 Y0 Z0 ; Reset tool 1 axis offsets G10 P1 R0 S0 ; Reset initial tool 1 active and standby temperatures to 0C M563 P2 S"T2" D2 H3 F6 ; Define tool 2 G10 P2 X0 Y0 Z0 ; Reset tool 2 axis offsets G10 P2 R0 S0 ; Reset initial tool 2 active and standby temperatures to 0C M563 P3 S"T3" D3 H4 F8 ; Define tool 3 G10 P3 X0 Y0 Z0 ; Reset tool 3 axis offsets G10 P3 R0 S0 ; Reset initial tool 3 active and standby temperatures to 0C ; Fans M950 F1 C"fan0" M950 F2 C"fan1" ;M950 F3 C"fan2" M950 F3 C"124.out2" ;M950 F4 C"fan3" M950 F4 C"124.out1" M950 F5 C"22.out2" M950 F6 C"22.out1" M950 F7 C"23.out2" M950 F8 C"23.out1" M106 P1 S255 H1 T70 ; T0 HE M106 P2 S0 ; T0 PCF M106 P3 S255 H2 T70 ; T1 HE M106 P4 S0 ; T1 PCF M106 P5 S255 H3 T70 ; T2 HE M106 P6 S0 ; T2 PCF M106 P7 S255 H4 T70 ; T3 HE M106 P8 S0 ; T3 PCF ; Electronics temperature and cooling M308 S10 P"D.0" Y"dht22" A"Electronics" M308 S11 P"S10.1" Y"dhthumidity" A"Elec Hum[%]" M950 F9 C"fan4" M106 P9 S255 H10 T40 M593 p"mzv" F33 S0.1 ; cancel ringing at 33Hz from I/S plugin M376 H10 ; bed compensation taper ;tool offsets G10 P0 X20.6 Y43.55 Z-5.51 ; T0 G10 P1 X20.52 Y43.74 Z-8.16 ; T1 Revo G10 P2 X19.63 Y43.39 Z-8.50 ; T2 Revo G10 P3 X20.47 Y43.68 Z-5.80 ; T3 M572 D0 S0.04 ; pressure advance T0 M572 D1 S0.04 ; pressure advance T1 M572 D2 S0.04 ; pressure advance T2 M572 D3 S0.04 ; pressure advance T3 M575 P1 S1 B57600 ; Enable LCD G29 S2 ; disable mesh T-1 ; deselect tools M280 P1 S140 M501 ; load config-override.g M150 R0 B255 U255 S1

I don't see anything significantly different, though it is interesting that you have a different steps/mm than I do. I assume that was down to some change in e3d pully setup? My settings seem to match those from the e3d repo.

As to noise levels. not sure if mine is much quieter than yours or not. The motors seem to make about the same amount of noise as my fans, but I am running 4020 blower fans on my tools which are no exactly silent.

@selva_tvi ahhhh I'll need to think on this. On closer inspection of the Gcode file, your machine follows this logic

T0 prints at Z=0.2

T1 is called, tfree0.g is run
Per tfree0.g, you move Z: G1 Z3 F500 ; up 3mm
T1 nozzle moves to the next printing location: G1 X270.6 Y259.2 F4800

What this means is Z is still equal to Z3, and doesn't go to the proper location until the start of 2, when G1 Z0.4 F1000 moves the T1 nozzle back to the correct height.

I use Cura for my IDEX machine, and on the move following a tool change Cura re-writes the current Z position, so I don't see this issue (I have my tfree set up in a similar way as you, where I move the print head in it). What we should be doing (I think) is using the G1 command with a R2 and Z0 in your tpost0.g and tpost1.g
https://docs.duet3d.com/User_manual/Reference/Gcodes#g1-controlled-linear-move
Example: G1 R2 Z0. This will move the tool head back to the printing Z height.

I finally installed a esp32 from btt and it works just fine. Too bad I couldn't find an answer for the original question that started this thread. I might revisit this at some point in the future, who knows...

@chrishamm Yes but why does doing a browser "refresh" fix the problem? As far as the WiFi server is concerned it is just seeing http requests so I don't see why the refresh would fix a problem at the server side? It seems odd to me? Maybe it is just a change in the timing of requests? If we can understand why that refresh fixes things it might help us resolve the problem (if there is one) in the WiFi server.

@gloomyandy awesome thank you.

It's sad that there are so few pin for PWM on the FLY board

Share your config.g, homing files, deployprobe.g and retractprobe.g files.

Show us how it's wired.

Does it do a self test with the pin at power on?

@moth4017 possibly @jay_s_uk can help then?

@jay_s_uk that's excellent 👍

@Sindarius I already fixed DateTime inconsistencies in SBC mode in v3.5-b2:

0dcfa781-3cf1-4d4a-b20a-884e8e8fa1ac-image.png

@jay_s_uk thanks for help, everithing now working!
I also added macros:
Power_loss_recovery.g
G1 H2 Z-5 F6000
M916
For some reason Z was raising for extra 5 mm before applying M916.
Maybe this macros not best solution but it work + easy access to recovery from browser)

@Phaedrux I'll check it out. thank you

i got it.
i had to change the connector to the oposite. wrong cable

@jay_s_uk
overkill of course but i dont use it here at the moment because i dont use this printer

What instructions are you looking for? How to use the bltouch to tell you how much to adjust the knobs? That's here: https://docs.duet3d.com/en/User_manual/Connecting_hardware/Z_probe_manual_levelling

@jtimon I don't look at Reddit much. For the STM port of RRF you're best seeking support on our discord server https://discord.gg/uS97Qs7
And you can still use a screen using UART assuming the screen supports it