Purpose of usb hub
Purpose of usb hub
Might as well make my first question a real nooby one. I’ve watched Wermy’s videos multiple times and understand it all apart from the usb hub. Is it just there as a way to have the option of a wireless dongle or does it d something like regulate/distribute power/data from the other ports? I’m awaiting the last pars I need for my build so no doubt this won’t be my last question!! Thanks in advance.
- rodocop
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Re: Purpose of usb hub
well, with wermy's first set of videos he was using a pi zero (no W), so there was no built in wifi. So using the hub allows you to connect a wifi dongle. He also used a teensy, which is a usb device that was connected. and he had one usb ran to the ext port for a spare. The pi zero w only has one usb port. so if you are using more than one usb device you would want a hub.
I generally do not use them. I skip the teensy and wire controls directly to the pi's GPIO pins, i use pwm audio instead of usb audio, so I only use the pi's usb to extend to the ext port to plug in a keyboard etc...
it all depends how you want to build, you don't need one, but it is necessary if you plan to use multiple usb devices.
I generally do not use them. I skip the teensy and wire controls directly to the pi's GPIO pins, i use pwm audio instead of usb audio, so I only use the pi's usb to extend to the ext port to plug in a keyboard etc...
it all depends how you want to build, you don't need one, but it is necessary if you plan to use multiple usb devices.
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Re: Purpose of usb hub
Nice one thanks, I’ve followed wermys parts list fairly strictly. I have a teensy but I have the pi zero w. So will still need the hub. Thanks for your help.
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Re: Purpose of usb hub
yes and no, yes you will need a hub if you want to have and usb port and the controller. If not connecting you controller wires to your pi and skipping the hub eliminates space issues.
- rodocop
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Re: Purpose of usb hub
_____________________________________________________
My Minty Pi builds:
http://www.sudomod.com/forum/viewtopic.php?f=32&t=3628
My GBZ builds:
http://www.sudomod.com/forum/viewtopic. ... 813#p50813
My modded DMG-01's:
http://www.sudomod.com/forum/viewtopic.php?f=13&t=2696
My NESpi:
http://www.sudomod.com/forum/viewtopic.php?f=13&t=2941
My Gaboze Pocaio's
https://sudomod.com/forum/viewtopic.php?f=13&t=6063
My Minty Pi builds:
http://www.sudomod.com/forum/viewtopic.php?f=32&t=3628
My GBZ builds:
http://www.sudomod.com/forum/viewtopic. ... 813#p50813
My modded DMG-01's:
http://www.sudomod.com/forum/viewtopic.php?f=13&t=2696
My NESpi:
http://www.sudomod.com/forum/viewtopic.php?f=13&t=2941
My Gaboze Pocaio's
https://sudomod.com/forum/viewtopic.php?f=13&t=6063
- RetroRocket
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Re: Purpose of usb hub
I did the same thing as @rodocop on both of my builds. The GPIO mapping is much easier than I thought it would be, and realistically you'd have to go through similar steps with a microcontroller.
It is very nice to have an external USB port if for nothing other than instant and automatic transfer of ROMs.
One note: PWM audio is pretty bad. Going for USB in my Orange Pi portable next to see if it's much better. To be fair though, when I'm playing on the bus, by mind is running crystal clear audio straight from nostalgia.
It is very nice to have an external USB port if for nothing other than instant and automatic transfer of ROMs.
One note: PWM audio is pretty bad. Going for USB in my Orange Pi portable next to see if it's much better. To be fair though, when I'm playing on the bus, by mind is running crystal clear audio straight from nostalgia.
- rodocop
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Re: Purpose of usb hub
Yeah, PWM isn't great but I have seen on the Retropie Handhelds facebook page recently that a member there, Dan Henry (not sure if you are a member here), has used a DPDT switch to switch between USB audio and the extra usb port. Which is a great idea. That way you can still skip the hub and use USB audio and have a spare port when you need it.RetroRocket wrote: ↑Wed Oct 11, 2017 8:33 amI did the same thing as @rodocop on both of my builds. The GPIO mapping is much easier than I thought it would be, and realistically you'd have to go through similar steps with a microcontroller.
It is very nice to have an external USB port if for nothing other than instant and automatic transfer of ROMs.
One note: PWM audio is pretty bad. Going for USB in my Orange Pi portable next to see if it's much better. To be fair though, when I'm playing on the bus, by mind is running crystal clear audio straight from nostalgia.
_____________________________________________________
My Minty Pi builds:
http://www.sudomod.com/forum/viewtopic.php?f=32&t=3628
My GBZ builds:
http://www.sudomod.com/forum/viewtopic. ... 813#p50813
My modded DMG-01's:
http://www.sudomod.com/forum/viewtopic.php?f=13&t=2696
My NESpi:
http://www.sudomod.com/forum/viewtopic.php?f=13&t=2941
My Gaboze Pocaio's
https://sudomod.com/forum/viewtopic.php?f=13&t=6063
My Minty Pi builds:
http://www.sudomod.com/forum/viewtopic.php?f=32&t=3628
My GBZ builds:
http://www.sudomod.com/forum/viewtopic. ... 813#p50813
My modded DMG-01's:
http://www.sudomod.com/forum/viewtopic.php?f=13&t=2696
My NESpi:
http://www.sudomod.com/forum/viewtopic.php?f=13&t=2941
My Gaboze Pocaio's
https://sudomod.com/forum/viewtopic.php?f=13&t=6063
- YaYa
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Re: Purpose of usb hub
This is so brilliaaaant ! Ohhhh this forum is astonishing me everydayrodocop wrote: ↑Wed Oct 11, 2017 10:24 amYeah, PWM isn't great but I have seen on the Retropie Handhelds facebook page recently that a member there, Dan Henry (not sure if you are a member here), has used a DPDT switch to switch between USB audio and the extra usb port. Which is a great idea. That way you can still skip the hub and use USB audio and have a spare port when you need it.RetroRocket wrote: ↑Wed Oct 11, 2017 8:33 amI did the same thing as @rodocop on both of my builds. The GPIO mapping is much easier than I thought it would be, and realistically you'd have to go through similar steps with a microcontroller.
It is very nice to have an external USB port if for nothing other than instant and automatic transfer of ROMs.
One note: PWM audio is pretty bad. Going for USB in my Orange Pi portable next to see if it's much better. To be fair though, when I'm playing on the bus, by mind is running crystal clear audio straight from nostalgia.
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