I made my PanelDue wireless to keep it close to me and removing the regular and unknow com error in the web interface.
probably working as good on official.
First revision of the tutorial for the bluetooth PanelDue
So good news 
, thanks for the hard work 
.
The printer is really good, a LOT of possibility in 1 printer.
Discord people are nice and open minded.
I love to print on mine, good print quality, fast speed and toolchanging with so many tools possibility, from the standard V6 to a supervolcano monster or milling, plotting.
Folks join us !
Hc05: https://a.aliexpress.com/_EGOKr6V
5V UPS: I just found this on AliExpress:
1,47€ | Mini 5V 1A UPS Uninterrupted Output Module 2 in 1 Charge Discharge 3.7V 3.8V 4.2V Li-Ion Li-Polymer 18650 Battery Charger Board
https://a.aliexpress.com/_EIco57n
1x 18650 li-ion battery or other flat li-ion battery.
1 switch from the shelve.
My design for the case.
This one work really well 
Pince à sertir universelle pour... https://www.amazon.fr/dp/B002AVVO7U?ref=ppx_pop_mob_ap_share
@Notepad yes you need to pair them Master and slave with right speed and right wiring, if you have 2 HC05 and a USB to TTL you can build a minimal setup with a power bank to supply the micro usb.
I'll appreciate some feedback on the tutorial 
. Thanks for the brave who are trying the Bluetooth COM
I'll appreciate some feedback on the tutorial . Thanks for the brave who are trying the Bluetooth COM
First revision of the tutorial for the bluetooth PanelDue
Hc05: https://a.aliexpress.com/_EGOKr6V
5V UPS: I just found this on AliExpress:
1,47€ | Mini 5V 1A UPS Uninterrupted Output Module 2 in 1 Charge Discharge 3.7V 3.8V 4.2V Li-Ion Li-Polymer 18650 Battery Charger Board
https://a.aliexpress.com/_EIco57n
1x 18650 li-ion battery or other flat li-ion battery.
1 switch from the shelve.
My design for the case.
@Notepad yes you need to pair them Master and slave with right speed and right wiring, if you have 2 HC05 and a USB to TTL you can build a minimal setup with a power bank to supply the micro usb.
I made my PanelDue wireless to keep it close to me and removing the regular and unknow com error in the web interface.
probably working as good on official.
I have the same type of CPAP, I can't go under 15% too, the board seems to have a minimum voltage startup. @dhusolo
Maybe you can configure in RRF 0% for the slicer matching 15% for the FAN to keep easier slicer setting to avoid false 0% with 10% set in the slicer. @dc42 ?
If someone found the CPAP board schematics I could investigate deeply (I'm electronic engineer)
I agree too, 1 "cofee" or more a month is not too much for me (+official board) compared to software updates 
I already do this for "SuperSlicer" and give 2€/month and others do the same on Github.
; Fans
M950 F0 C"duex.pwm2" Q2000 ;CPAPFAN
M950 F1 C"fan1" ; Fan 1, Dragon HF hotend fan on Tool 0
M950 F2 C"duex.fan4" ; Fan 3, Dragon HF hotend fan on Tool 1
M950 F3 C"duex.fan6" ; Fan 5, Dragon HF hotend fan on Tool 2
M950 F4 C"fan2" Q20000 ; Fan 6, cooling duet board 20000Hz
M950 F5 C"duex.e4heat";lights
M106 P0 X0.7 C"Part Cooler" ; CPAP
M106 P1 S1.0 T45 H1 ; Dragon HF Tool 0 Hotend Fan
M106 P2 S1.0 T45 H2 ; Dragon HF Tool 1 Hotend Fan
M106 P3 S1.0 T45 H3 ; Dragon HF Tool 2 Hotend Fan
M106 P4 H5 L100 X150 B0.05 T32:40
I have same kind of issues since 3.4.
Maybe the Pressure Advance don't have a 3rd order compensation for speed variation, could be a good update.
Made 4 measurements at different speed, make the equation in excel.
Can we add this with "Duet programming Gcode" ?
Yes for me it's max flow calibration of each new filament (avoid manual calculation). Sometimes too much monitoring is too much but love to see parameters flowing during print