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prusa3d / Original-Prusa-MINI

Original Prusa MINI 3D printer hardware
https://www.prusa3d.com/original-prusa-mini/
GNU General Public License v3.0
428 stars 77 forks source link

USB Hub not working #48

Closed passteinforth closed 3 years ago

passteinforth commented 3 years ago

Hi, I want to use a USB Hub to connect more USB devices to the Mini. I use this Hub https://www.alternate.de/i-tec/USB-3-0-Metal-HUB-4-Port-USB-Hub/html/product/1524373 and connect it to the USB-A Port of the Mini. The little LED of the Hub turns on, but when connecting the original USB stick to load print files, nothing shows up and in the main menu it still says 'no USB'. The USB stick is the only device plugged into the hub at this moment. When connecting an Arduino Nano to the USB hub, it gets powered as intended (the Nano controls a humidity sensor for a drybox and a 7-digit displays and only draws some power, no data connection). The second USB port of my Mini is blocked by Octoprint/Raspberry Pi 4, so I cant use this to power my humidity sensor/Arduino.

JohnnyDeer commented 3 years ago

Hi @passteinforth, USB hub is not supported by MINI, this won't work even if you plug in just one USB stick. I´m closing this issue as invalid.

aargonz23 commented 2 years ago

@JohnnyDeer @josefprusa why wont the mini+ support a hub? I tried a switcher and that wouldnt work either. why not have it wirelessly connect? arent there more options for the other printers? im not sure I understand the issue with setting up the mini to be more convenient than just swapping the USB drive out constantly. I know there are options to connect a raspberry Pi to a mini but they're not exactly easy to come by this year. I've tried and they sell out before you even think to check. I know its not a massive issue but better options would be massively appreciated by the mini+ community as a whole.

JakoobCZ commented 2 years ago

Hi guys, the MINI+ USB port was designed to support a USB flash drive. Powering any other external device (like USB hub) was not planned nor tested. Getting the USB hub to work including full power would require HW adjustments to the board and changes to the firmware.

Regarding sending the data over the network, we are working on it :)