Advice wanted for Pi SNES case build project please - Raspberry Pi Q&A, Help & Troubleshooting

Hi all,
I bought my first Dremel earlier in the week so I can finally put all my evil hardware modding plans into action! First up is building a Pi into a PAL SNES case to use as a multi-emulator using RetroPie, and had some quick questions for anyone in the know…
1. Ive ordered the GPIO adapter so I can use the original controller board from the console, but will this also enable the original power LED on the SNES to work as its on the same PCB, or so I need to come up with other ideas for that? If the latter, what would you suggest given that the adapter will be using all the GPIO pins?
2. My plan is to mount the internals of an Xbox 360 wireless controller adapter (the kind you get for using a 360 pad on PC/Mac) into the case, so that the SNES reset button will press down onto the controller adapter’s button for pairing pads. I know drivers are available, but will the pi have any problems running the adapter power-wise from its USBs?
3. Given that my GPIOs will be taken up by the controller adapter, any ideas how I could get the SNES on/off switch to function as a power switch for the Pi? Ideally I'd like it to safely halt the system then remove all power when I flick the switch to 'off'.
4. Last one. I’m only going to be emulating 8bit/16bit, possibly some pre-8bit stuff, so nothing too taxing. I have heatsinks on the pi’s CPU and GPU, would a fan be needed also or will the pi be fine being passively cooled?
If anyone’s interested I can upload some photos of where I’m at so far, and I hope to get at least the hardware side of it wrapped up by midweek. Ive even mounted a USB stick into an old cart and am using it in conjunction with the original cart connector and eject bar, and a USB extender to make things a bit more authentic

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[Q] And USB adapters for the DS7 yet? So we can hook up controllers etc.

Just wondering, since some of the newer tablets let you hook up mini usb devices to it and so. Was wondering if there had been any adapters yet or so for us streak 7 users? Would be cool to get a wired controller hooked up and so.
You would need an OTG cable to do that, as dell doesnt make any you will have to make your own or use the HDMI dock.
Well I have the HDMI Dock, so I could use the dock then insert the usb device to that? Was thinking about getting that Logitech F710 with that usb dongle, heard it had support for android. What else would I need? Or hows that work fully.
As for the non dock part, has anyone made a cable yet to work?
if your device had a usb-a connector you have no choice then but to make a cable.
the sixaxis/ds3 uses a mini usb connector and might work though usb,
I know it and the wiimote will work over bt, with the wiimote being the easier to pair one.
Well I have the wiimote working fine, Issue there is.. Yea.. Battery drain on that remote. So figured maybe getting a adapter. I guess I need a USB to Mini micro usb? (The new style mini usb thing.. man I miss the old big RAZR size ones) How many of you have used a HID device or so on android or the streak 7?
you'd need to splice together the dock connector to preferably a USB-A female port, it'd be the most useful as you'd have a cable that could accept anything, but it'd mean you'd always need a minimum of 2 cables.
You'd also have to dissemble to dock connector itself i believe as the OTG pins are different from what's wired in the normal sync/charge cables, you cant simply cut the cable and rewire it, you'd prob have to cut the dock connector open and resolder
If you made a dock to micro usb connector it'd only accept devices that have a micro usb port on it.
Keep in mind usb mode means that the controller would be drawing power from the device itself, while controllers dont draw that much, it's still something to point out
Wouldnt this be all I need?
http://www.amazon.com/USB-Female-Mini-Male-Adapter/dp/B0016RNX2I/ref=pd_sbs_e_4
Would take the normal size usb dongle or cord, fits into the USB slot of the dock itself.
I havnt actually tried it but it sounds like that should work, i know that port is designed for otg connections so i'd assume it'd take care of the hard work.
When on 2.2.2 Did I need a special program for this to work? I know 3.x had native support. Just wondering. =) (Or can any game/emulator with key remapping auto detect)
if it's anything like the hoops needed for the s5 on 2.2.x yes, unless dell included their own code stuff to make it work, then i'm not sure.
I've never attached a controller to anything, wired or not so I can only say that much
Wonder what the app would be called or so, anyone know? I mean I ordered the part, should be here in a few days, then I can report any tests I have with a Rumblepad 2.
Ok tested it out, So far nada. Dont know if its even supposed to work.
Has anyone here hooked a wired controller up to their android? Running Honeycomb now too.
I know people talk about the F710, which I wonder if that works cause its battery powered?
So what's the verdict guys? Can a controller or other USB device be connected to the mini USB port on the docking station and work? If not, will it work if you plug in a mini USB OTG cable (like this one http://www.ebay.com/itm/Mini-USB-Re...757?pt=LH_DefaultDomain_0&hash=item3a6edf5335) into the docking station and then plug the controller into the OTG cable?
So far my verdict is nada.. dont think its supplying power to the usb ports. Now its been said that adapter based ones may work, something where controller is powered by batteries. Tho again. No one ever gives a real confirm.
My next area to branch out is http://www.onlive.com/controller 50$ but you can use a adapter for the pc. However it also works with bluetooth, something that the tablet DOES support and no adapter needed. Since I have the onlive app, least it will work 100% for THAT. Once my tax money comes in, Ill order the controller and see if it can work on emulators and so too. least then we will have 1 solid answer that has some good use. (Since honestly, onlive on the tablet really isnt bad at all!)
Why not bluetooth your ps3 controller though the sixaxis app on the market thats what I've done works great
Sent from my Dell Streak 7 using xda app-developers app
I have used my Wii remote that way
Sent from my Nexus 7 using Tapatalk 2
To answer both. If I am not mistaken. PS3 controllers have to be "paired". Which means when you wanna play PS3 or Tablet.. got to re-pair them all the time, correct?
Wii-Motes I know you dont have to re-pair them. However.. one thing I hate... that to use the classic controller.. you need to have the Wiimote laying around somewhere.. then the cable for classic. Seems bulky for normal use.
Both controllers all are battery too. Would be nice for wired solutions. If I do anything wireless, I may as well get that Onlive controller with BT support.
If you have a sixaxis/DS3 dedicated to non-ps3 use: you only have to re-pair it every time you want to use it on a different device.
The sixaxis/ds3 do work in usb mode, at least on pcs. I dont recall if there's a solution to use it in usb mode on android (though i'd imagine it should, as usb mode is trivial to enable)
If you only have a single device to use it with, you only ever need to pair it once and then you're done.
Well, I finally went and tried hooking up a usb hub to my S7, and my results were absolute failures.
I bought an OTG <-> dell 30 pin a while back and a standard OTG <-> dock cable.
I dont have a baseline as I dont know offhand which kernels are specifically tested to work.
It seems to enable the hub (by enable I mean it powers up on detection of a host, it's wall powered)
on my S5 with ICS/Phoenix kernal (which is known to support usb hosting), but nada on my S7 with ICS B4/mod and stock 514.
Can anyone explicitly confirm that the b4 and stock kernals work with host?
I'm pretty sure nothing is happening on either of those, and as it works fine on my S7 it's definitely not bad cables/hardware.
Edit: at least the S5 is even capable of powering the hub itself, and with a dock it can charge at the same time. If it wernt for the terrible HDMI out on it, it would be a full on android pc with the dock.
The S7 on the other hand: I still cant get anything, remotely powered or self powered: it gives no response
I can tell you, yes, ICS kernel does have otg drivers but may not provide power to those devices.
Sent from my Nexus 7 using Tapatalk 2

[Q] MHL video and USB OTG at the same time?

I'm hacking a portable USB keyboard (from HP iPaq) to work on my note and planning on including USB hub, battery power pack, USB port for flash drive.
I'm also planning on adding HDMI out. I'll either include a switch to go between USB (keyboard etc) and video only or if I can have everything then this will become my "turn Note into a computer" all in one solution when plugged into HDMI monitor/television.
All the pins are there. But I don't know if MHL and USB can be used at the same time. Anyone know or do I have to try it and see what happens?
Blowing up my Note USB chip would not make my day! LOL
PurpleMelbourne said:
All the pins are there. But I don't know if MHL and USB can be used at the same time. Anyone know or do I have to try it and see what happens?
Blowing up my Note USB chip would not make my day! LOL
Click to expand...
Click to collapse
Sorry to rain on your ideas for the second time but not possible. Even if the logic were there to somehow implement both modes, there just is not enough bandwidth on those wires. You only have two twisted pairs and 1080P needs almost all that bandwidth to push enough ones and zeros to fill the screen at 25-30fps.
Your best bet for satisfying that fantasy is bluetooth keyboard and mouse. Think I saw a youtube video yesterday of a guy playing a game through MHL out while controlling through a bluetooth keyboard.
They are mutually exclusive connections at the hardware level, so no software mod can make this possible.
Bluetooth keyboard and mouse are great - check out my youtube channel "AndroidNZ" for a demo on MHL and various uses.
I was already impressed a while back by your video showing MHL video and so I went and bought a connector of my own on ebay
My main focus is to make a little do it all dock for sitting having lunch in a cafe. All built into a wired HP iPaq keyboard. I currently have a Dell Axim bluetooth keyboard and Logitech bluetooth mouse, but they aren't as smooth as I'd like. But the mouse is probably only useful when using a big screen.
So hardware hacking time!
But even if I can't do both, it will be nice to have my phone sitting next to the television with only a short HDMI lead and the phone doesn't flop around because of the stiffness of said HDMI cable as it does currently with my existing octopus setup of leads.
So it will have two modes.
Video mode where the keyboard only acts as a stand, battery pack and video port.
Cafe mode where I have keyboard with stand, USB flash drive, battery pack and USB.
All in a 15cm x 10cm x 2.5cm tidy expanding package :-D
Maybe when the Note 2 comes out with USB 3 we might be able to have both video and USB
oops, duplicate
MHL + OTG Multimedia dock is now available!
Heres the answer to your mhl + otg problem guys but a bit costly!
http://www.ebay.com/itm/Original-Sa...axy-Note-2-N7100-EDD-S20EWEGSTD-/230889526839
who can read is in advantage
this dock station is for the note II and not for the note I.
The pinout is different.
but 1 solution could be plugging in otg then usb hub then the micro usb female to usb A then the Mhl adaptor and the other connector of the hub with the mouse and the keyboard
http://de.focalprice.com/CA0352B/USB_A_Male_to_Micro_USB_Female_Adapter_Black.html
but finally i think it won´t work because there is not enoug voltage and power to get all devices so u need an external power supplier for the hub or an battery connect with the hub. try it out and tell us of your experience
)
alz_uk said:
Heres the answer to your mhl + otg problem guys but a bit costly!
http://www.ebay.com/itm/Original-Sa...axy-Note-2-N7100-EDD-S20EWEGSTD-/230889526839
Click to expand...
Click to collapse

Looking for Y otg and charging cable please

I am going to install the Nexus 7 to my car, indash, but I need to find the cable that allows usb storage, dvb radio and charging, is there a cable that has multi usb connectors, please could someone give me links to items...many thanks.
promethieus said:
I am going to install the Nexus 7 to my car, indash, but I need to find the cable that allows usb storage, dvb radio and charging, is there a cable that has multi usb connectors, please could someone give me links to items...many thanks.
Click to expand...
Click to collapse
I was looking for something similar a while back. I'm in the UK and still haven't tracked one down
You can find a y otg cable HERE. If you need several USB port, you have to use an USB hub. And also you must flash a kernel with USB host mode charging patches.
promethieus said:
I am going to install the Nexus 7 to my car, indash, but I need to find the cable that allows usb storage, dvb radio and charging, is there a cable that has multi usb connectors, please could someone give me links to items...many thanks.
Click to expand...
Click to collapse
Something like this perhaps? It had a usb a cable with a switched 5v lead (for host mode charging), that end plugs into a regular usb otg cable. The other side has female usb a (for devices), mini usb (for most small usb hubs), and male usb a (for connecting to a power source, in the 2nd pick there is a 2000 mAh usb battery)
I couldn't find anyone selling them so I started making them. I could make you one or post a wiring diagram and you can go to town on it.
Sent from my DROID4 using Tapatalk
How much to make one and post it to me please.
Ill make and estimate for you over the weekend. Do you want it exactly like the one pictured or do you have a custom request? Your kernel supports otg charging correct? Where will I be getting a quote to ship to?
Sent from my DROID4 using Tapatalk
I have the usb car rom and kernel by http://mehrvarz.github.io/nexus-7-usbrom/, this should work. yes I would like the same as yours please.
I have alot to do to my car anyways, I previously re modded my dash to fit a double din and modded out my boot to fit the base amp and power cap in the boot still having the spare in there and the base actually fitting inside the spare wheel and still sounding good, so will have to research the wiring needed for the nexus and the volume control and such...please be nice with the price, I do appreciate it though.
I am in the uk, where are you from?
I found the kernel you compiled, wondering if this will work with the rom I installed too.
It might, its all cm10.1 source. The current version does not support host mode, the updated one I'm posting this week does (just so you know). If it does work for you you could do some fun wardriving with your car mount, if your into that sort of thing!
I'm in sunny california usa
Sent from my DROID4 using Tapatalk
Will have to see what the shipping fees will be, I have friends over there too. Part of a gaming clan. Have been for sooo long now. If it works out too much, I will have to ask you for the wiring diagram and I will have to see about doing it myself, I am good with electronics, but it was just the time to set aside. You can message me the diag if you like, please forward it to fixer14 at hotmail.com.
Ok cool, its a pretty straight forward design. If you can solder you can make one.
Sent from my DROID4 using Tapatalk
Ok matey, hit me up with the details then please.
I have just been out to my car and have set my phone up via bluetooth, and also want my nexus to connect to the phone and have sound, calls, satnav running to the amp via phone, when I try to connect it seems that it will only allow 1 device at a time, so this is an issue for me, I want to be able to run my copilot live from the nexus, and also have ability to play music and receive and make calls. is there a bluetooth receiver that will allow me to do this without having to switch to a specific device each time...any ideas welcome, my nexus is not a 3g one.
My amp is a 4 channel Hertz, with powercap installed.
I'm installing my nexus 7 in my car as well but I'm concerned that it wont charge while running Nav, Pandora and other apps at the same time. It seems that the nexus 7 is picky when it come to cables and chargers. What do you guys suggest
Riley1524 said:
I'm installing my nexus 7 in my car as well but I'm concerned that it wont charge while running Nav, Pandora and other apps at the same time. It seems that the nexus 7 is picky when it come to cables and chargers. What do you guys suggest
Click to expand...
Click to collapse
Ive got my nexus 7 installed into my double din, I'm using a Parrot device to bluetooth sound to but also charging it from the usb slot from the Parrot box.
I'm going to change the bluetooth to a AUX cable to save on battery use and already tried optimising settings to save on battery.
I'm not very clued up on this type of stuff but I've got it so the screen comes on and status on when power is there, got screen dimming widgets so I can dim the screen right down when I want to save battery.
All in all it works very well but battery does eventually die after a week or two so I take it out for a full recharge.
A couple of ideas I'm thinking is
1) using usb extension cable, run it to the glove box and every couple of days attach a emergency battery charging unit.
2) using a little solar panel charging unit built into parcel shelf.
Sent from my GT-I9300 using Tapatalk 2
I am not concerned about power usage as an inverter will solve this permenantly. As long as you get the correct charger for use with the inverter.
Im going with this charger. From the looks of it, it seems to be a good choice.
http://www.amazon.com/gp/product/B005J4OTUO/ref=oh_details_o03_s00_i00
I wonder why more developers don't include the fast charge option in their kernels. Ill let everyone know how it works
Okay, I have just made up a dock for the nexus for my car, it is in "Production State" at the mo, so I still have to tidy it up and spray it and finish it.
I have fitted a charging connector and audio connector into it,
Hardest part was getting the connectors to line up.
At least it is started now, I will be making up the OTG cable, when I get the wiring diagram for it, have all the bits ready.
Okay, here is the Video, I know the dock looks rough at the moment, but it has to be tidied up.
http://youtu.be/ElBILx72NTQ

USG OTG -> hub -> HDMI video?

Hi, everyone.
New M8 user here. S-Off, flashed 5.0 Lollipop. Running Linux Deploy with paravirtualized Debian Wheezy for ARMhf.
I'm trying to round out the I/O by adding a comfortable keyboard and good mouse. I could go with bluetooth keyboard/mouse, and I probably will, but I expect to need OTG anyway (flash, hard drives), so I'm planning on putting a USB hub on a OTG cable, but that probably kills any ability to use a MHL adapter. Does Android support those USB 2.0 VGA/DVI/HDMI adapters? Should I bail and go for something like Chromecast?
Honestly, if there were a laptop shell that the phone could drop into and give me bigger screen, keyboard, touchpad, and USB ports, I could probably eliminate my laptop entirely. I'm an OpenCL developer, so maybe not, but I guess that's the dream.
I think this is exactly what you are looking for
http://www.andromiumos.com/
They had it on kickstarter, didn't reach the goal, so they are currently working below the radar or something and are hoping to show off some of their work at MWC

USB-C hub for Razer Phone 2?

Looking to find a USB hub for my phone. I see a ton of them online, and some of them even kinda say they work with phones. But I know not all of them do. Looking for one that can output HDMI and has at least one USB-A input (two would be nice, but not a deal breaker). I do realize it'll probably require PD input, that's not a problem. [email protected] would be my preference too as a minimum. The goal is to use my phone as a portable gaming device, so I'm hoping to have low input lag for the wired controller.
My hope is somebody has found a decent one that they've tried with this phone and works. Would also accept testimony from people who have tried it on the V30, or any other flagship USB-C Android phone that isn't Samsung (they use DeX, I need no feedback on that).
So... Anybody got any personal experience to share on this topic? Realize it's kind of a tall order, but I'm hoping somebody has found one that works and is reasonably priced.
I too would like to know this if anyone has some info on it. At the moment i have tried 2 different docks, the Alogic USB-C Dock Plus which is just plain **** to say the least, if you connect the charger and HDMI it will eventually crash the systemui freezing you completely. The other dock i have tried is a Satechi Slim Multi_Port Adapter which works to HDMI but does'nt charge the device at all even though it has a charger slot for it & chargers my other phones fine plugged in via the same cable.
MS Display Dock
I have used a Microsoft Display Dock, has 2 USB A-Ports, HDMI, DisplayPort, & charges simultaneously. The Razer Phone work fine with it (TESTED), but honestly the phone seems to be capable of being compatible with any Hub save the ones for the Nintendo Switch. Being that the Microsoft Display Dock is discontinued & old, you can probably find good bargains from 30$ or more. While it is name brand and, from personal experience, its a well built piece of tech, you might want to consider how you plan to listen to your device, and think about adapters with Aux-out if you plan to used wired headphones.
I was goofing around at work and we have these USB c travel adapters that have a USB, HDMI, Ethernet, and vga out, but can't charge at the came time. Upon further goofing around I plugged in Dell WD15 dock, bingo, full output on everything. Comes with a charger so it charges, Ethernet, display port, vga, USB ports. They run about 130 on Amazon right now. Plugged in our projector to it, then some external speakers, Bluetooth my gamepad to it. Loaded my some emulators and I was playing Mario kart while taking some support calls.

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