Skip to main content
WARNING! From February 2022, these pages are no longer maintained.
Please see the current Duet3D documentation at

Site Navigation

Your Account

Choose Language

Changes to Step #4

Edit by Ian A-S

Edit approved by Ian A-S


Step Lines

-[title] Connect YAT to Your Printer
+[title] Connect to Duet - Windows
[* icon_caution] This step is for ***Windows*** users only! Mac OS and Linux users skip this step.
[* blue] [|Download YAT here.] Install YAT using default options, then open it. If the Terminal Settings screen doesn't open automatically, select "Terminal" menu, then "Settings".
[* blue] Select the correct COM port as the Serial Port.
[* black] If unsure of the COM port number, press ***Windows Key + R*** on your keyboard and type ++devmgmt.msc++
[* black] Your Duet will be listed under ++Ports (COM & LPT)++ as ++USB Serial Device (COM#)++ or similar. Use COM# as the Serial Port in YAT.
[* blue] Set YAT to use <LF> as the end of line character. This will improve the readability of the messages coming from the Duet. Click "Text Settings" in the "Terminal Settings" and change "EOL sequence:" to <LF>. Click "OK" to close Text Settings. Click "OK" again to close Terminal Settings.
[* blue] Select "Terminal" menu, then "Open/Start" to connect to your Duet. Or click the green tick in the tool bar. If you are connecting to a ***Duet 2 WiFi***, you may see lots of ''"WiFi reported error: no known networks found"'' messages. Don't worry, that's normal, and it means that the Duet is working!
[* icon_note] Some users have reported issues with YAT under Windows 8 not connecting properly. If YAT does not work, try [|Pronterface] to confirm the computer can talk to the Duet