Solved Octopus v1.1 communication interface UART vs USB mode

[MrMitnick]

Printer Model

Voron 2.4.r2 Rev.C LDO kit

Extruder Type

Clockwork 2

Cooling Type

Stealthburner

Hi there folks,

Just a quick question i cant seem to find an answer for on this forum, nor anywhere else.
I am waiting for my PIF parts to arrive, so i thought i would do some electronics configuration. I am using a LDO kit Rev.C with a Pi3b. The kit comes with a PCB to hookup the Pi so it gets powered over the pins.

The BTT manual states you can configure the firmware in two ways:

• IF USE USB
  • Communication interface = USB (on PA11/PA12)
• ElSE IF USE USART2
  • Communication interface = Serial (on USART2 PD6/PD5)

however it is unclear to me what the difference is, and why i should choose one over the other. This topic is not covered on the LDO website nor the Voron2.4r2 manual.

Hope someone can shed some light on this.

 

[NoGuru]

Sure, serial is basically just a JST plug with some wires going to the GPIO pins on the PI.

The USB, is just that, it uses a USB-C to USB-A cable to send the communication. Both are very similar with the USB being a cleaner solution since the wires are encased in a sleeve.

I would say 90% or more are most likely using the USB method.

 

[MrMitnick]

Thanks, this was one of those things i was affraid was gonna bite me later on. But it doesnt matter, i'm running USB now and can leave it like that. Awesome!

 

[Billbr]

Serial setup is a bit more finicky to setup and somewhat slower than USB, but other than that, either way works fine. Most people do USB beacause it is essentially plug and play.