Lightning - 30 pin repurposed for Android - Galaxy S III Q&A, Help & Troubleshooting

Hello All,
I've had a thought whilst browsing through the forums this evening. Our SGS3 supports audio output through micro usb port via a DAC in the same way that Apple now has to do with its lightning to 30-pin adaptors, there are knock copies floating around ebay for £6
I wonder if it would be possible to remove the lightning plug from one of these adaptors and replace it with a micro-usb plug and maybe a 40.2k resistor to trigger the USB host mode and get it talking to the DAC inside the converter??
it might not be a straight forward hack but I'm sure the majority of the components are the same, could make for a great accessory for people switching from iPhones to Android who have old docks lying around, I bet its quite a big market.
update : Just found the Chipworks tear-down of the Apple adaptor : http://www.chipworks.com/blog/recen...inside-the-apple-lightning-to-30-pin-adapter/ looks like it has a Wolfson 8533 dac same as used in the GS1 I think. I expect the clone adaptors use a cheaper dac.

Related

MHL to analog audio adapter

Does anyone have any experience with a MHL adapter that will charge your phone and also provide analog audio? I would like to make my own car dock with one.
The "iKross MHL micro-USB to VGA Display and Stereo Audio Adapter" on amazon is pretty much what I need, but am unsure if it will work with the EVO LTE.
It's really unfortunate Sprint/HTC opted to get rid of the charging/audio pins on the back of the ONE X when designing the EVO.
you can still use the 3.5mm headphone jack as an audio out even with the MHL streaming out via HDMI. It tried it with my headset and my monitor. Works great
abbazaba said:
The "iKross MHL micro-USB to VGA Display and Stereo Audio Adapter" on amazon is pretty much what I need, but am unsure if it will work with the EVO LTE.
Click to expand...
Click to collapse
I've been looking for a similar solution. I'd wager that the adapter you mentioned is compatible. MHL is a standard and I'd very be surprised if the GNexus (as listed on the product page) worked, but the EvoLTE didn't.
I have an aux jack and charging port in my glove box, and for years I've just been using both USB and audio cables which dangle out of the box. I don't think I need a car dock (my car already has GPS), but just having one less cable (like those old iPod car adapters which split out analog audio) will be quite nice.
If you're nervous about buying it, I expect I'll pull the trigger on this in the next week or so, and I can report back.
I'd like to find a black or gray version, though. White cables are garish.
Exactly. I never bother with my phone because of all the wires being a hassle. Just looking for a more elegant/convenient solution I can just set my phone in. Might try to hack the MHL adapter and HTC car dock together, though I wish the car dock wasn't so unnecessarily bulky.
Just picked up the belkin Bluetooth today and hooked it to RCA inputs. Got an app that connects Bluetooth when the power cable is connected and turns it of when its not.works great So far. So now I'm down to just power cable .
Sent from my EVO using xda premium
Would this work?
http://forum.xda-developers.com/showthread.php?t=1321491
Or a generic micro-usb to 3.5mm adapter with a micro-usb Y?
http://www.amazon.com/Samsung-ET-AUF3SBEBXAR-Female-Headset-Adapter/dp/tech-data/B003XT1UA4
http://www.amazon.com/Naztech-Micro-Charging-Splitter-Cable/dp/B004DI7EIQ
What do you mean by this:
It's really unfortunate Sprint/HTC opted to get rid of the charging/audio pins on the back of the ONE X when designing the EVO.
Click to expand...
Click to collapse
Thanks!
has anyone tried this yet? I'd be interested in its compatibility with the car dock as well as how the quality is. With the car dock and the headphone jack I'm getting lots of feedback and static.
I've order the iKross MHL adapter and the parts necessary to assemble the custom cable. I will report back if the iKross adapter works. If it does work, I may not assemble the custom cable. If the iKross adapter does not work, I will assemble the custom cable and post results.
The iKross MHL adapter came in today, and it does work on the Evo 4G LTE. However, the sound is so terrible that I cannot recommend it to anyone for this application, and I will be sending the adapter back. It seems to only pass low frequencies to the 3.5mm jack, so much of the audio signal is lost. The audio is very low quality compared to the built-in 3.5mm jack. I will be trying the custom cable now, once I get all of the parts I need.

USB otg and slimport questions

Can the USB otg and HDMI be used at the same time?
My situation now is that I have the Moga Pro Power that I picked up at the pawn shop for $40
Noticed that it has quite a bit of lag using the A-mode, and still a noticeable amount of lag in B-mode, approximately 100ms.
So I'm wondering if it's possible to connect a wired controller via USB otg, and if that might have less input lag.
I'm also curious if I can output to HDMI while connected to a wired USB controller.
If I could create like a docking station on my TV that turns my phone into a mean little media station/console, that would be completely badass.
I saw this adapter on Amazon and eBay, it connects to the phone's microusb on one end, and has ports for HDMI, SD, Micro-SD, USB, and a Micro-usb for powering the phone and any attached USB device at the same time. You can find it by searching "otg slimport" on Amazon or eBay.. Selling for under $13 on eBay. Unfortunately, the same product on Amazon has only a 2 star rating. Reviews saying the charging port isn't working as advertised, and HDMI connection is touchy, and certain TVs are incompatible. So it looks like a no-go. China will manufacture and sell just about any hodgepodge of wires and plastic they think consumers will buy, that doesn't mean it will work.
So now I'm wondering if this sort of function is even possible, and if so, is there a product available that can provide it, and if there is no product like that, can somebody please make it?
So I did a bit of research, and it seems there's definitely some technical limitations as far as charging the phone wile in "host" mode. This means that while connected to USB OTG, the circuitry that is normally used to charge the phone, is used to supply power to the attached USB devices. I found a site that has a modified kernel for the Nexus 7 that enables charging the phone while connected to devices via OTG. https://mehrvarz.github.io/usb-host-mode-power-management-nexus7/
Maybe this could be implemented in the V10

Creative Sound Blaster

Has anyone tried to connect Creative Sound Blaster E5 or Sound Blaster X G5 portable sound cards? It can be a very interesting result.
https://en.creative.com/p/sound-blaster/sound-blaster-e5
https://en.creative.com/p/headphones-headsets/sound-blasterx-g5
Sound blaster x G5 DOES work on some android devices
Skip to the end to avoid my long pre-amble. Refer to it if you run into issues using the provided steps though. I picked up a sound blaster x G5 on sale at Best Buy for like seventy bucks and was super stoked to hook it up to my moto G4. No dice and after some research and trying it with a powered otg adapter I abandoned the endeavour. Fast forward 4 months and I finally get around to replacing the broken digitizer on an lg gpad f 8.0 v495. Not the entire LCD mind you, just the broken glass digitizer. First attempt doing this on any device ever and it was every bit as hair raising as you might think. From what I understand this is a pretty obscure tablet but it's got great wifi reception and a full size USB port on top independent of the micro USB charging port on the bottom. I can't be certain but I think this is the key to getting the sound blaster x G5 to act as an external USB dac because by all accounts I have come across this should not work. The v495 runs lollipop 5.0.1 and is rooted. Again not sure if rooting is a crucial part of getting this DAC to run as an external USB dac. It was a hassle getting this tablet rooted and supersu installed. I think it was kingroot I originally used to root it but kingroot is crap imho and I wanted supersu on there which I managed to do after quite a bit of hassle. Apparently doing what I did to get supersu can brick your v495 as not a lot has been done with this tablet in the community as from what I gather it is pretty obscure but I'd be happy to help anyone trying to get supersu up and running. Anyhow what you need to do is get a powered USB hub that takes 5v 2amp external power and plug that into the full size USB port. For me I tried three USB 2.0 hubs with external power between one and two amps of external power, no dice on those ones. Ive tried two different USB 3.0 hubs both with 2 amp power plugged into wall socket or power inverter in a car and both worked, even the Walmart onn brand one meant for use with PS4. So far power banks have not worked and I've tried several. It doesn't always start putting out sound right away and I still don't have it 100% figured out, sometimes it takes some unplugging and plugging back in to get audio output from the G5 but once it's going it doesn't cut out and sounds really, really good at least compared to the fiio k1/a1 combo I was using prior though that is still a good combination especially for the price. I use this in my car with a Belkin rockstar 5-way splitter one line going to fiio a1 headphone amp to the aux jack for car stereo and the other line going directly to a Polk audio home theater subwoofer meant for home theater use plugged into a second power inverter. Odd setup? Yup. Cost effective and great sound? Yup. 3.5mm splitters in my experience are notorious for having the timing be off for different outputs and this has been a huge hassle, I've got several and out of two Belkin rockstars only one with two ports of five sync up evenly. Picked up a foil e07k which has two 3.5mm outputs to solve this but it hasn't arrived yet. Possible both line outs on the G5 may solve this too. I am continuing trying to work out the kinks in this setup to have the G5 start outputting the sound without a bunch of u plugging nonsense and just put picked up a high quality USB 3.0 powered hub and will post any further results I get. Here are the STEPS: 1- plug in power supply to USB 3.0 hub. 2- plug in USB 3.0 hub to full size USB port on top of tablet. 3- plug in a flash drive to USB 3.0 hub 4- plug in the G5 to USB 3.0 hub. If it lights up and stay lit with no flashing of the red X you should be in business. If you get no sound output start unplugging and plugging things back in at some point you should get audio output from the G5. Having the tablet charging simultaneously seems to help but isn't necessarily required. Same with having a flash drive plugged into the hub. You can also try having the flash drive plugged into the full size port on the G5, android will be able to access it in either case. Headphone amp on line out(s) from G5 may also help. I'll be updating after further testing. Also, it's a good idea to program some presets on the G5 by using the software provided for windows and Mac, I ran into bizarre sounding music the first time I got this working on the tablet because the WE settings were all over the place when it came to music. Took some trial and error by is easy to correct.
Try using the ENTER key occasionally.

Tab S3 USB OTG/Multiport adapter & power = whuuuaaat?

Ok,
So I've tried two cheap adapters (USB-C male < USB port female, HDMI, USB-C female power input) and both transferred files etc without issues BUT weren't able to power my tab simultaneously as I was doing things.
I'm a musician and want to keep the Tab powered will plugging in my midi devices....
Anyway, searching the web (and XDA) found out this wasn't possible, so i gave up.
THEN I got a reply from Samsung (whom i forgot I had asked) and they said to try their multiport adapter...
So I bought it to test it and bring it back and voila, it freakin worked... xD
I brought it back since it costs 85euros in the netherlands and thats WAY too much for my usecase...
BUT the question here is WHY does that one work?
The only differences I can see externally = The adapter looks way more premium, the connector is more solid and doesn't seem to be split in two through the middle (the divide/crease inbetween) like most cheaper USB-C cables have. And the Samsung adapter is WAY more heavy..??
What's making this adapter work and what are the others missing?
Is it the usb protocol (2.0, 3.0, 3.1, thunderbolt?) or something else inside the adapter?
Isn't there a cheaper alternative?
Curious to hear what peeps here think :cyclops:

How to get a free USB to 3.5mm headphone adapter for your S20

While I have a Note 10 plus, this will work for any phone that has a USB C port. A company I have worked with many times before it's looking for honest reviews of their new products and you'll get one for free. I found out about it here on XDA a few years ago and wanted to share so others could join in. Who doesn't want free accessories for their phone
They current have a USB C to 3.5mm adapter (2 pack). Basically, you buy the adapter, post a true review, and he'll reimburse you via PayPal for the adapter. I've personally reviewed a number of products he sells and they have been great.
He also has an 8K HDMI, and USB extension, if you're interested.
If interested, contact Jayson at [email protected]
Link to adapter on Amazon.com: https://www.amazon.com/dp/B0837MMB4B/ref=cm_sw_r_other_apa_i_3DuTEbHZZJV3G
Speaking of the adapter, it's awesome. My car's Bluetooth is not reliable, so when it goes out, I need an adapter to connect my phone to the car because stupid Samsung killed the headphone jack. This adapter fixes that issue. Unlike others, this one for nicely into the USB port (many are cheap and feel like it's going to break my phone), it looks good, and the sound is crystal clear. Well with it...
~J101399J

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