out_6_buff

TobiAsis

Hi!

I was wondering what the out_6_buff is on the mini 5+. Can I use this as a regular PWM output on out6? Is there a connection to the fan headers above it?
I would like to use it with the NLDD-1400H LED driver. Basically PWM-controlling that input. So far I used the io0.out for that, but I am running out of those and just need one more.

Cheers
Tobi

droftarts

@TobiAsis Yes, you should be able to run that driver from out6_buff. From https://docs.duet3d.com/Duet3D_hardware/Duet_3_family/Duet_3_Mini_5+_Hardware_Overview#description-of-connections

LASER/VFD
5V buffered output shared with out6, along with 5V and ground supply (see note 2 below). Provides a 5V PWM signal to drive hobby servos, and PWM->analog controls for VFDs or Lasers. Note out6 PWM pin is shared with OUT_6

@TobiAsis said in out_6_buff:

So far I used the io0.out for that

io0.out isn't a PWM pin, so you're just turning it on and off with that? io1.out, io2.out and io3.out are PWM capable.

From the driver specification sheet, it looks like you could control it from any IO pin with PWM capability (see https://docs.duet3d.com/Duet3D_hardware/Duet_3_family/Duet_3_Mini_5+_Hardware_Overview#inputoutput)

REMOTE ON/OFF
Leave open if not use
Power ON with dimming: DIM ~ -Vin >2.5 ~ 5VDC or open circuit
Power OFF : DIM ~ -Vin < 0.8VDC or short

Ian

TobiAsis

@droftarts Thanks for the note and your help. That is good news for me.

I must have confused it, and used io1.out. Or, I only turned it on and off so far, so I might not have noticed the missing PWM. But I will also need the PWM functionality in the future.

Have a good day
Tobi