Topics created by WingedDonkey

@WingedDonkey when you power up, expansion header pin 8 should be at 3.3V. It should go to 0V when you command the laser to turn on. If you are using the recommended connection then the output of the 74HCT02 should be 0V at power up and 5V when you command the laser on at full PWM.

HTH David

Hi there Winged Donkey..
This is my first post so please bear with me.
I’ve just upgraded to the DUET2 WiFi board from a cnc vpro2
My old vpro2 board ran a 15w PWM laser ok. M3 M5 S255 etc.
I’m looking into following your lead / research to get my PWM laser to work.

Did you solve all of your issues in getting you laser to work?

Has your PCB worked as designed?

If you still have any of the spare boards, would you be willing to post a couple to me in the UK?

I’ll cover the cost if you can help

Best regards
Phil T