sudomod

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.

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.

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.

GrantVXR wrote: ↑

Sun Oct 08, 2017 7:26 am

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.

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.

So, if we wire the controller board to the pi GPIO is there any coding that needs to be done ?

Thanks

Maury wrote: ↑

Tue Oct 10, 2017 7:21 am

So, if we wire the controller board to the pi GPIO is there any coding that needs to be done ?

Thanks

Just a little. Here are some instructions:

http://www.sudomod.com/forum/viewtopic.php?t=57

Perfect .

Thanks

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.

RetroRocket wrote: ↑

Wed Oct 11, 2017 8:33 am

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.

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.

rodocop wrote: ↑

Wed Oct 11, 2017 10:24 am

RetroRocket wrote: ↑

Wed Oct 11, 2017 8:33 am

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.

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.

This is so brilliaaaant ! Ohhhh this forum is astonishing me everyday