Develop Bugs

[Q] Cable that puts the Evo in car mode?

I'm using an adjustable car mount from proclip that holds my phone really nicely in my truck, and I've got a 1000mA USB car adapter that charges the phone really well with a standard USB cable.
My question is about getting the phone to go into car mode when I plug it in. I've read some posts that say shorting the data pins together in the USB cable will make the phone see it as a car charger. Has anyone had any luck making a cable like this? Does it work? Is there anywhere where I can buy one for cheap?

I believe that you can set a profile in Tasker to have car mode enabled whenever AC, USB or both are present.

gtg252b said:
I'm using an adjustable car mount from proclip that holds my phone really nicely in my truck, and I've got a 1000mA USB car adapter that charges the phone really well with a standard USB cable.
My question is about getting the phone to go into car mode when I plug it in. I've read some posts that say shorting the data pins together in the USB cable will make the phone see it as a car charger. Has anyone had any luck making a cable like this? Does it work? Is there anywhere where I can buy one for cheap?
Click to expand...
Click to collapse
I've made a cable that does this. I had to buy parts in bulk so I'm listing the rest of them in the XDA market: http://forum.xda-developers.com/showthread.php?t=784379.

@Davpel - That might work, but then wouldn't it go into car mode whenever I plugged it in elsewhere too?
@ForceO - Sounds nice, but I can't get into the market... I don't think I have enough posts yet. Can you PM me the info?

Using tasker to run car mode will not run car mode every time you plug your phone into a usb charger, if you download the power plug profile from the tasker wiki and install it. When you plug your phone, your phone will ask you if you want car, home or night mode. Pick car mode and tasker will run whatever car dock program you want. I use Custom car home.
Sent from my PC36100 using XDA App

ForceOnature has the ticket, that's it, ground pin 4 on the micro usb.
http://www.youtube.com/watch?feature=youtube_gdata_player&v=0VtDyFbNFLU
It's pretty easy to make, just take a grinder to a micro usb cable, then pick the extra plastic off with your fingers, then solder a jumper between pins 4 and 5, that part can be tricky because of the size of the tab you need to solder to....patience is key.
Sent from my PC36100 using XDA App

dabigcheezze said:
It's pretty easy to make, just take a grinder to a micro usb cable, then pick the extra plastic off with your fingers, then solder a jumper between pins 4 and 5, that part can be tricky because of the size of the tab you need to solder to....patience is key.
Click to expand...
Click to collapse
I tried the Dremel route and it was definitely not easy. Ended up having to abort and make my own from scratch because the plastic/epoxy stuff used to fill in under the black rubber shell was too hard to remove and still leave the pins intact.

[Q] Audio input for the Xoom (perhaps via USB ?)

Hi all,
I think it's safe to say we all hate the 30 pin proprietary connectors on devices like the ipad.
My only concern is, how capable will the USB port on the xoom be. My immediate requirement would be Audio-in.
Do you think I may EVENTUALLY be able to connect a USB-based audio interface (for example: the Griffin iMIC ), once USB support on xoom improves?
I'm already disappointed that we can't charge over USB. I just hate to think that our only accessories will be the CRAPPY portfolio case and dock. Accessories matter.

orcad007 said:
Hi all,
I think it's safe to say we all hate the 30 pin proprietary connectors on devices like the ipad.
My only concern is, how capable will the USB port on the xoom be. My immediate requirement would be Audio-in.
Do you think I may EVENTUALLY be able to connect a USB-based audio interface (for example: the Griffin iMIC ), once USB support on xoom improves?
I'm already disappointed that we can't charge over USB. I just hate to think that our only accessories will be the CRAPPY portfolio case and dock. Accessories matter.
Click to expand...
Click to collapse
USB charging is limited to 5v no matter what the connector (coming from a computer). Thats why you can't charge the i*ad over USB either. I think it made since to have 2 separate plugs so people don't get confused.

jdenman03 said:
USB charging is limited to 5v no matter what the connector (coming from a computer). Thats why you can't charge the i*ad over USB either. I think it made since to have 2 separate plugs so people don't get confused.
Click to expand...
Click to collapse
Actually The i*ad does charge on 5 volt, it is the current that is the problem. Most devices (laptops) can not provide the current required.... I have a 2amp 5volt USB charger that I use to use with my i*ad. Would love to use it with the Zoom....

I think it might have audio out via USB cause while docked on the Moto dock there is a headphone out. The only connections to the Xoom are USB and two pins presumably for charging.

micro female/male hdmi and usb for Lapdock

I bought these on ebay. The HDMI is short but worked but when I connect both cables to lapdock, the USB is not being recognized so the keyboard/mouse is not working. I want this just to act as an extension so I can use full lapdock abilities with cables. Any idea what's going on (cable charges on plug but does not charge on lapdock)? Maybe someone has better usb cables.
fixed the link:
http://www.ebay.com/itm/29059482363...X:IT&_trksid=p3984.m1497.l2649#ht_3046wt_1508
http://www.ebay.com/itm/36042990934...X:IT&_trksid=p3984.m1497.l2649#ht_2333wt_1010

links appear to be broken...
From your title I've been looking for these (or similar) cables for a long time and have been unsuccessful. However I have yet to try them.

Fixed the link
http://www.ebay.com/itm/29059482363...X:IT&_trksid=p3984.m1497.l2649#ht_3046wt_1508
http://www.ebay.com/itm/36042990934...X:IT&_trksid=p3984.m1497.l2649#ht_2333wt_1010

i don't think it will work either way, tried a few things like this with no avail.

why wouldn't they? Cheap build quality that doesn't include the data wires? Hell I'll be willing to splice two cables together to get our desired effect, the only problem is that cords with a female micro usb are incredibly hard to come by

So that is what you think it is? No data on the usb cables.
Sent from my MB860 using XDA App

mamoranto said:
So that is what you think it is? No data on the usb cables.
Sent from my MB860 using XDA App
Click to expand...
Click to collapse
the only reason that is my suspicion is because there are many "charging" products out there that don't really need data. Why there would be a need for such a small charging extension cable is beyond me, but it's the only solution I can think of, but I have no way of confirming or denying it either. The ebay descriptions seem to imply that the data wires are there, but we all know how reliable ebay can be...
Another idea I had was that it might be sensing the resistance in the cable, since, if I remember correctly, that was how some think/though the car dock puts the atrix into car mode without a magnet as is/was commonly used. Again these are just ideas.
Or the cable is just so poorly made that it's defective...I honestly have no clue

Has anyone got full lapdock capabilities using extension cables? I can only get the screen working and not the mouse and keyboard.

The HDMI extender was the hard one to find. There are other micro USB extenders out there, theoretically with all wires connected....
http://www.usbfirewire.com/uextendmicrob.html
Kind of makes me wish i hadn't hacked up my lapdock to work with the Otterbox

Where did you get your HDMI extender? I got mine from All4Cellular but it's quite short. Will have to get another HDMI one if the usb cable you recommended works.

mamoranto said:
Where did you get your HDMI extender? I got mine from All4Cellular but it's quite short. Will have to get another HDMI one if the usb cable you recommended works.
Click to expand...
Click to collapse
If you're asking me, i didn't. I was referring to the ebay link in the third post.

grevedan said:
The HDMI extender was the hard one to find. There are other micro USB extenders out there, theoretically with all wires connected....
http://www.usbfirewire.com/uextendmicrob.html
Kind of makes me wish i hadn't hacked up my webtop to work with the Otterbox
Click to expand...
Click to collapse
before I read that post, I was looking around the forums and the web yesterday well into the night. here are some of the things I've found that might be relevant to everyone (and it might possibly be cheaper, though more diy).
Micro USB stuff:
I have no idea why this exists http://www.dealextreme.com/p/micro-...r-cable-for-blackberry-9900-black-30cm-107901
I have no idea why this only has 4 pins http://www.sparkfun.com/products/9614
http://www.sparkfun.com/products/10031
mamoranto said:
Where did you get your HDMI extender? I got mine from All4Cellular but it's quite short. Will have to get another HDMI one if the usb cable you recommended works.
Click to expand...
Click to collapse
Here's what I am thinking about doing:
http://www.ebay.com/itm/140626354628#ht_2821wt_1177 or http://www.ebay.com/itm/Micro-HDMI-...ultDomain_0&hash=item415eac6dc0#ht_2821wt_980
http://www.amazon.com/HDMI-Female-M...YPB4/ref=sr_1_2?ie=UTF8&qid=1329854686&sr=8-2
then the hdmi cable that came with our phone:
http://www.amazon.com/Motorola-Stan...QTA8/ref=sr_1_8?ie=UTF8&qid=1329854856&sr=8-8

The HDMI certainly looks like it may work but the reason I didn't buy that product from ebay a few weeks ago was because it was $50. Now miraculously, it's only $6. Maybe I'll get that if the USB cable I just bought that was suggested works a few posts back.

misiek93 said:
why wouldn't they? Cheap build quality that doesn't include the data wires? Hell I'll be willing to splice two cables together to get our desired effect, the only problem is that cords with a female micro usb are incredibly hard to come by
Click to expand...
Click to collapse
This micro usb extension cord explicitly states that all 5 wires are connected (compatible with droid bionic for the purpose of docking with a case on the phone):
http://www.ebay.com/itm/Micro-USB-E...395?pt=LH_DefaultDomain_0&hash=item335d13272b
I bought the HDMI extension cable and the USB cable above. I have a lapdock so I'll post if it works.

everything asked/answered in here is already covered in the original thread:
http://forum.xda-developers.com/showthread.php?t=1376679

robrj said:
This micro usb extension cord explicitly states that all 5 wires are connected (compatible with droid bionic for the purpose of docking with a case on the phone):
http://www.ebay.com/itm/Micro-USB-E...395?pt=LH_DefaultDomain_0&hash=item335d13272b
I bought the HDMI extension cable and the USB cable above. I have a lapdock so I'll post if it works.
Click to expand...
Click to collapse
The HDMI cable seems to work. On the lapdock, with just the HDMI cable hooked up, it functions like it was it's an entertainment center.
The USB cord will need to be modified a little bit. I can't get it to seat right on the USB jack of the dock. I'll need to shave it down a bit as it doesn't sit down snugly.

robrj said:
The HDMI cable seems to work. On the lapdock, with just the HDMI cable hooked up, it functions like it was it's an entertainment center.
The USB cord will need to be modified a little bit. I can't get it to seat right on the USB jack of the dock. I'll need to shave it down a bit as it doesn't sit down snugly.
Click to expand...
Click to collapse
I ordered the USB cable and experience this same problem, though I am waiting for my hdmi parts to come in (by April 6th I should have all my parts...). The cable itself works flawlessly as a micro usb extension cable when connecting it to the computer.

again as mentioned in the other thread, you want to be careful with the 5v coming out that micro hdmi port. for connecting back to your phone would be no issue, as the phone charges using this voltage, but hooking the lapdocks micro usb up to a host device probably wont appreciate the 5v coming back up the cable, where normally the usb device would be pulling power from said host, not providing it.
one suggestion is to just clip the red wire inside your micro usb cable/adapter.
btw the adapters i use do fit snugly side by side, without modification.

I've been following this thread for a little while now, and I wanted to share something I found.
I was looking at the Motorola Travel Webtop adapter. And I was curious to see whether it could be tweaked to suite our needs. I naively thought/hoped that I could flip the connectors in the device to make a small adapter to connect the Atrix to newer Lapdocks. Unfortunately as you can see in the pictures below (sorry not enough posts to link to the pictures) the two connectors are connected via a PCB not wires or a ribbon cable. Although I still have high hopes that I can de-solder the HDMI and USB connectors, and use a small length of flat ribbon cable to connect them and then re-positions the connectors in the case, to build a micro adapter to use the Atrix on the newer Lapdocks. Should this fail this will at least prevent others from making the same mistake, and solve the mystery of what's really inside the Webtop Travel adapter.

Do any one know if this Micro HDMI Cable would work for Lapdock.
http://www.ebay.com/itm/1-Feet-HDMI...s_Adapters&hash=item416612cecb#ht_1149wt_1187
Description says for Asus tf201 MEMO ME171.
I believe all Cables are standard. Can this used to Atrix 4g with Lapdock?
I have otterbox case for Atrix and don't want to Remove cover everytime to plug in Lapdock.

Galaxy nexus dock usb connect

I had a question about using an otg or hdmi adapter while having the device charging on its dock. So I cut a little of the dock in order to reveal the usb port.
I didn't work. I post this for anyone who wondered the same thing. I guess its not perimitted for security reasons, as it would gave the ability to charge the device from two sources simultaneously.

That Sucks
I would assume that would work !

Insane case idea, advice?

Hey guys, I had an i dea on a case, first off im unsure if itll work, but want some feedback of what you think. First, i wanna basically make if a mini laptop type of thing..but still maintain the tablet as it is. The case will charge, have a keyboard, usb ports, and internal storage. I am going to attempt to make the usb box with the storage removable, on the bottom of the case. It would be nice if the keyboard were removable too but thats un important at the moment. For charging im going to utilize the qi(?) wireless charging, build this into the case. In order to power this i will remove the port off of the system and place a deans connector at the base of the case(all connections will use deans connectors cause they are easy and modular) the location will depend on the case, but they will either be at the back along the very bottom edge or on the bottom. The otg adapter will be built into the case so when you slide the nexus in to the case it connects to it. This will also run down to 2 deans connectors. These are how the usb hub will become removable. The usb module will house the port for the power adapter, an un-powered usb hub, an internal memory of some sort, and if the charger is plugged in there will be a switch to change the un-powered usb hub unto a powered one. (will not be using stock qi power adapter, will use something slightly more powerful in order to split the power between the qi and the usb hub. I will be building a circuit for that) All the connections will connect to a corresponding deans plug. Thus making it easily removable and turning it back into a regular case again. Add the wireless keyboard that fits the case, and a wireless mouse and possibly the tablet running full ubuntu(have a few ideas to fix some issues with it for instance the kubuntu desktop over the normal ubuntu desktop to assist in some lag). All of it will be encased in black leather( hopefully i can find the same texture as the manufactures case, if not i may completely strip the case and use only the hard parts(for instance the frame holding the nexus) and create my own case( may actually be my best route).
Also streaming out to tv will be covered via miracast.
So what do you think? Possible? Will it work? Worth while?
What case and keyboard would you suggest? Preferably something cheaper..
Sent from my LG-LG870 using XDA Free mobile app

Does no one think this is a good idea?

antleo said:
Hey guys, I had an i dea on a case, first off im unsure if itll work, but want some feedback of what you think. First, i wanna basically make if a mini laptop type of thing..but still maintain the tablet as it is. The case will charge, have a keyboard, usb ports, and internal storage. I am going to attempt to make the usb box with the storage removable, on the bottom of the case. It would be nice if the keyboard were removable too but thats un important at the moment. For charging im going to utilize the qi(?) wireless charging, build this into the case. In order to power this i will remove the port off of the system and place a deans connector at the base of the case(all connections will use deans connectors cause they are easy and modular) the location will depend on the case, but they will either be at the back along the very bottom edge or on the bottom. The otg adapter will be built into the case so when you slide the nexus in to the case it connects to it. This will also run down to 2 deans connectors. These are how the usb hub will become removable. The usb module will house the port for the power adapter, an un-powered usb hub, an internal memory of some sort, and if the charger is plugged in there will be a switch to change the un-powered usb hub unto a powered one. (will not be using stock qi power adapter, will use something slightly more powerful in order to split the power between the qi and the usb hub. I will be building a circuit for that) All the connections will connect to a corresponding deans plug. Thus making it easily removable and turning it back into a regular case again. Add the wireless keyboard that fits the case, and a wireless mouse and possibly the tablet running full ubuntu(have a few ideas to fix some issues with it for instance the kubuntu desktop over the normal ubuntu desktop to assist in some lag). All of it will be encased in black leather( hopefully i can find the same texture as the manufactures case, if not i may completely strip the case and use only the hard parts(for instance the frame holding the nexus) and create my own case( may actually be my best route).
Also streaming out to tv will be covered via miracast.
So what do you think? Possible? Will it work? Worth while?
What case and keyboard would you suggest? Preferably something cheaper..
Sent from my LG-LG870 using XDA Free mobile app
Click to expand...
Click to collapse
Sounds like a good idea in theory, but if you want a laptop why dont you just buy a netbook

As the person above me said, it's a good idea in theory, but what is the impetus for designing or using this? Not being snarky, just curious what purposes you have in mind for this product or for what situations it could be beneficial. What would be a marketing strategy or hook to interest people that separates it from a laptop or netbook?