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Is anyone aware or the physical way to fool the desire to go into car dock mode either by rewiring a usb cable, or does it use the same magnetic sensor as the nexus, I currently use a boadit iPhone cradle that fits perfect and i have a charger mini usb cramped and srewed into the bottom, I would like to be just be able to drop it in and it go into the Navigator app and switch on bluetooth automaticly and kill both when i remove it ..
thanks
birdster said:
Is anyone aware or the physical way to fool the desire to go into car dock mode either by rewiring a usb cable, or does it use the same magnetic sensor as the nexus, I currently use a boadit iPhone cradle that fits perfect and i have a charger mini usb cramped and srewed into the bottom, I would like to be just be able to drop it in and it go into the Navigator app and switch on bluetooth automaticly and kill both when i remove it ..
thanks
Click to expand...
Click to collapse
The droid/milestone used magnets to detect the dock, but the google car dock uses bluetooth and doesn't even use the usb cable (it uses the gold 3 bits on the bottom of the phone). I too wished you could do the same, but my brodit holder fit the phone so badly, I've decided to shell out and try the original car dock - just waiting for it to come.
Thanks for the reply, so the million dollar question is how does the desire's dock sense when its dropped in the cradle, any ideas people ? I read somewhere forgot now doh !! that it might be a case of grounding one of the data lines in the usb cable, can anyone confirm this ?
I'd like to know this too.. Dockmode/Cardockmode
Look at this thread - probably the id pin, but i need someone with the same charger and a multimeter to check some things
I have 2 chargers (work & home) that I use that plug directly into the wall, the one at home brings up Navigator where the one at work doesn't, so it must have to do with the pins in the USB connector.
Can you do some measurements with a multimeter on that charger that opens the navigator???
oh this sounds like what we wanna hear, my betting is one of the usb data lines gets grounded as ive mentioned before !!! plz test to see if more than one of the pins in the usb plu is being grounded .... pretty plz !! heh
Hey Guys,
yes it looks like the Desire can be fooled into thinking its connected to a car dock, my car charger seems to do it when the usb is not properly inserted.
I suspect HTC might release a car dock for the Desire. If not some one should really monopolise on the fact that this can be done.
I will be experimenting with it soon but currently have way to much uni work to finish for the end of the month
Ok went into the workshop and stripped the desire usb lead, I tried every combo of pulling the data lines to ground even both together, the installed navigator.apk didnt kick in , but looking at a reatime system dump i could see usbconnected and type(0) , type (1), type(2) had been triggered, on the differnt combo's i tested, why its not kicking in is anyones guess, maybe cas the Incredible navigator.apk is strictly configured for that device, guess the Incredibles navigators.apk has to be recompiled with new settings !!
I will try it with the cardock.apk tomorrow ripped from the nexus we might have more luck with that me thinks !!! fingers crossed !!!
Keep up the good work! I FINALLY get my Desire delivered tomorrow (after waiting 4.5weeks for stock!!!), so I can have a look at this too... let us know how you get on.
I'm interested in a homedock/multimediadock trigger as well as the car dock trigger. It should be included in the Desire as well as the cardock.
Here's an emulator that could be helpful in the process of developing a dockapp or finding out what's really happening..
http://www.androlib.com/android.application.net-geekherd-dockenabler-pBmD.aspx
I'll try to find the homedockingtrigger if there is any to use in my homemade dockstation
Hi
Wonder if there has been any progress on this? I'm keen to hack my Brodit active cradle to be a fake real dock!
James
gw0udm said:
Hi
Wonder if there has been any progress on this? I'm keen to hack my Brodit active cradle to be a fake real dock!
James
Click to expand...
Click to collapse
Same here! Any progress?!
after upgrade to froyo, i pluged my car charger in my desire and the car mode icon showed up, even when the other end of the charger is NOT pluged in the lighter. I use a charger for my old HTC Diamond and added a little thing that convert a mini USB port (wich is on diamond) to a micro USB. And the cable on my charger is too short for me so it has been moded (extended) by my self, there is only two wire in the cable for power, so there must be something in the plug itself that triggers the car mode. if only plug the converter into Desire, nothing happened
It's the ID pin that needs to be connected to ground, as indicated in this thread: http://forum.xda-developers.com/showthread.php?t=744636
Finally find out how the car mode is triggerd
short circuit the ID Pin of the micro usb conector to any other pin will make my phone into Car mode and the car panel will popup if installed.
The ID-Pin is the 4th pin of the conector wich is the 2nd from left when desire facing up. Since the pc end of a data cable doesn't have the ID-pin, it won't work like this thread said
forum.xda-developers.com/showpost.php?p=6519276&postcount=10
birdster said:
Ok went into the workshop and stripped the desire usb lead, I tried every combo of pulling the data lines to ground even both together, the installed navigator.apk didnt kick in , but looking at a reatime system dump i could see usbconnected and type(0) , type (1), type(2) had been triggered, on the differnt combo's i tested, why its not kicking in is anyones guess, maybe cas the Incredible navigator.apk is strictly configured for that device, guess the Incredibles navigators.apk has to be recompiled with new settings !!
Click to expand...
Click to collapse
can someone confirm that
Can you confirm with pictures or diagrams?
So this means that an amended cable would do it every time?
yes, just like my car charger did, even when the charger is not pluged in the car lighter.
Can you please post pin-out schematics?
Thx.
i think the menu is hidden by htc as the desire does not have the copper pins at the bottom like the nexus 1. hence the nexus 1 car dock wont work on the desire. the nexus one can be charged with the pins and does not need the micro usb for car dock chargings / docking. i guess the car dock software options shown on the desire by accessing the settings widgets are a hangover from the similar software on the nexus 1 hence hidden on the desire by htc.
i have the car dock app installed (dont remember from where though) and it works fine instead with navigation / voice search icons etc.
Sent from my HTC Desire using XDA App
bubblesmoney said:
i think the menu is hidden by htc as the desire does not have the copper pins at the bottom like the nexus 1. hence the nexus 1 car dock wont work on the desire. the nexus one can be charged with the pins and does not need the micro usb for car dock chargings / docking. i guess the car dock software options shown on the desire by accessing the settings widgets are a hangover from the similar software on the nexus 1 hence hidden on the desire by htc.
i have the car dock app installed (dont remember from where though) and it works fine instead with navigation / voice search icons etc.
Click to expand...
Click to collapse
HTC is coming out with their own car dock. That is why their 2.2 ROM has the necessary support for it.
http://www.expansys.com/d.aspx?i=199788
neur0x said:
Can you please post pin-out schematics?
Thx.
Click to expand...
Click to collapse
Yes, I would be very interested in the schematic
sorch said:
HTC is coming out with their own car dock. That is why their 2.2 ROM has the necessary support for it.
http://www.expansys.com/d.aspx?i=199788
Click to expand...
Click to collapse
something like that has been on th expansys and other websites since april / may onwards! so i wouldnt take that too seriously till it actually arrives and car dock works when docking.
at present i use the car dock app which has to be triggered manually but works fine. i use it with the car mode app.
Yesterday i was driving with the car charger inserted in the Desire, when i was moving the cable sometimes the Desire gave a little car icon and my NavApp was activated. Sow i think i has something to do with the 4th pin, and you don't need a certan resistor attatch to it to get it in a certain mode.
bubblesmoney said:
something like that has been on th expansys and other websites since april / may onwards! so i wouldnt take that too seriously till it actually arrives and car dock works when docking.
Click to expand...
Click to collapse
That is probably because it needs 2.2 to to work properly. That's why the timing just happens to be after the release of said ROM.
Seems very overpriced if all it does is hold and charge the phone + short some pins together to enable car mode. Seems like anyone could make something to do that.
I some how triggered car mode on my desire yesterday. It must have been as I inserted the charger as I pulled away so may have shorted a pin. but went to car doc mode and had car symbol on status bar and I had to push to exit even after unplugging charger. I have not been able to replicate this since.
I bought 3 mini usb to micro usb adapters from eBay to allow me to use my existing car chargers and all three of them put my Desire (2.2) into car mode but don't appear to work as data adapters in my quick test.
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=310237922332
I see the car symbol and the notification tells me that I am in car mode but what does it do for me?
Thanks,
Since Froyo update I keep getting the car icon in the task bar when I plug the charger in...
Following the instructions I've made a "car dock cable". I intend to use it with a usb car charger when that arrives. I just soldered pin 4 and 5 together, which now gives me the icon and navigator pop up.
I used one of these cables : http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260636551302 as they have an easily removable micro usb end, plastic cover.
Can you give more details - 4 and 5 on the non Desire end?
Yes, more details please. Would be interesting if I can modify a Brodit active charger..
Philosoma said:
Yes, more details please. Would be interesting if I can modify a Brodit active charger..
Click to expand...
Click to collapse
I also bought an active Brodit charger and it doesn't seem to trigger the car mode, so I am curious if it would be possible to modify to charger in order to achieve this.
Edit: I just sent an email to Brodit and asked them if its possible. Let's see what their answer will be. I post it asap.
I bought 2 different Mini usb to micro usb converters from Brando.hk.
Carmode triggered on both types when i use it with my old Athena charger.
think i paid around 6$ for a converter.
This might be easiest way without cutting cables and soldering.
theese are the converters.
http://shop.brando.com/mini-usb-to-micro-usb-adapter_p03683c0006d001.html
and
http://shop.brando.com/mini-usb-to-micro-usb-adapter-w-on-off-switch_p04160c0006d001.html
I am working on a plan to mount a vehicle dock in a more permanent and professional looking way compared to windshield suction cup with dangling wires.
In my previous thread I figured out how the mounting will be accomplished, now to sort out the wiring... Handling the audio connection is simple. The USB...not so much. I don't want to use a cigarette lighter to USB adapter if I can avoid it. I would far prefer to hardwire but I don't want to go hacking up the cable for no good reason. I know the USB standard calls for both 12v and 5v, if the dock is set to use 12v only, then it is simple, since my car has plenty of 12v power to spare
If it is 5v or both, then I am stuck needing a transformer, and in that case disassembling a cigarette lighter adapter and using the "guts" as my transformer will be my backup plan.
My dock won't be here till Thursday and I have no idea what pins on the micro USB to even try to test and see what voltage is fed to the dock.
Does anyone know the answer or have the ability to check?
Where did you see that USB can be 12V? USB is 5V. Are you thinking of SATA/PATA or ATX (which all have 5V and 12V) or Firewire (which doesn't have a fixed supply voltage)?
You'll need a transformer.
Laurent
You are right, I was thinking of the ATX power supply.
Ok, well at least I know what I am up against. Thanks
you'll need a transformer (require +5v), i did the same for my dock / car (hardwired power /audio cables). i ended up taking apart a cigarette car charger and connected it to a +12v and ground and everything works fine. i have the wire coming up from near the back of my dash area so no cable clutter up front at all.
joeryu said:
you'll need a transformer (require +5v), i did the same for my dock / car (hardwired power /audio cables). i ended up taking apart a cigarette car charger and connected it to a +12v and ground and everything works fine. i have the wire coming up from near the back of my dash area so no cable clutter up front at all.
Click to expand...
Click to collapse
I did something similar, but I remounted a hidden cigarette lighter socket to a constant 12V source and grounded it twice for stability, so my phone and MP3 player can charge while I shut the car off and go inside a store for a second (don't leave it connected overnight though!). I ran the wires behind the dash, but I use one of my air vents that rotates all the way around as an able-to-be-completely-destroyed mounting location, then just cut a piece of wood to re-mount a new cell phone holder, etc.
For the Atrix dock, I pulled off all the suction cup mounting materials so it was just the threaded socket on the dock. I used a large enough drill bit to cut into the wood in the right spot for the threads to fit, and threaded them onto the wood to test. Removed it, sanded the wood down smooth on all edges, and applied texturized black spray paint to the wood to make it look like plastic instead of tacky looking wood. Mounted the car dock to it again after drying, and now the dock rotates with the unuseable air vent from portrait to landscape!
Hey, I've got a 2004 Acura RSX, it isn't a BMW.... works just great!
GarciaM25 said:
I did something similar, but I remounted a hidden cigarette lighter socket to a constant 12V source and grounded it twice for stability, so my phone and MP3 player can charge while I shut the car off and go inside a store for a second (don't leave it connected overnight though!). I ran the wires behind the dash, but I use one of my air vents that rotates all the way around as an able-to-be-completely-destroyed mounting location, then just cut a piece of wood to re-mount a new cell phone holder, etc.
For the Atrix dock, I pulled off all the suction cup mounting materials so it was just the threaded socket on the dock. I used a large enough drill bit to cut into the wood in the right spot for the threads to fit, and threaded them onto the wood to test. Removed it, sanded the wood down smooth on all edges, and applied texturized black spray paint to the wood to make it look like plastic instead of tacky looking wood. Mounted the car dock to it again after drying, and now the dock rotates with the unuseable air vent from portrait to landscape!
Hey, I've got a 2004 Acura RSX, it isn't a BMW.... works just great!
Click to expand...
Click to collapse
Nice! Have any pictures? I have a 2003 Mazda 6 and I have a EQ mounted in my top dash pocket so I was able to pull my +12v from there and grounded to my chassis. One question, do you get noise when you have your phone docked and charging while having the auxiliary/headphone port connected to your system? Im getting some slight interference that I can't seem to get rid off...
joeryu said:
Nice! Have any pictures? I have a 2003 Mazda 6 and I have a EQ mounted in my top dash pocket so I was able to pull my +12v from there and grounded to my chassis. One question, do you get noise when you have your phone docked and charging while having the auxiliary/headphone port connected to your system? Im getting some slight interference that I can't seem to get rid off...
Click to expand...
Click to collapse
I'll take some, one day...! I don't use the headphone port really, I have an aux input on my aftermarket headunit that I connect my ZuneHD to, so no use for internet radio or downloading music to my phone, EVER.... with my aux input, I always manage to get engine noise, no matter how I position the wires and how strong I ground the charging devices behind the dash.... Looks clean as hell though, just sucks about the slight engine noise! Sorry I can't help
My Mazda RX-8 is getting feedback as well. I need to try another MP3 device to see if it when connected to the power and aux it gets the same feedback.
If it does (different devices) then it's an issue with the grounding on the lighter or a diode on the alternator.
I am considering getting a car dock but have a question; do you have to plug in and remove the 3.5mm audio cable every time or does sound go through the mini usb with a permanent 3.5mm going out the back of the dock? can't find enough info. the motorola site explains nothing; click here.
psymont said:
I am considering getting a car dock but have a question; do you have to plug in and remove the 3.5mm audio cable every time or does sound go through the mini usb with a permanent 3.5mm going out the back of the dock? can't find enough info. the motorola site explains nothing; click here.
Click to expand...
Click to collapse
It goes through the MicroUSB - you have to use the supplied USB cable because at the end of it, on the USB-A side, there is a split attachment for the 3.5mm jack that you can hide behind the dash easily and connect to the back (or front, if applicable) of the radio
Great thanks so much for explaining it. Ill get one then.
Update: Desk dock resistor value found & additional connector sources found thanks to mikejr83
I went through all of this with my Captivate a year or 2 ago, and figured it might be nice for Galaxy S 3 owners as well. You can see the history at http://forum.xda-developers.com/showthread.php?p=12169590
Dock mode
Samsung phones will trip their dock mode when they sense a resistor of a particular value between the ID (pin 4) & Ground (pin 5) pins on the micro USB connector
Car mode - 619k ohm (Validate on my Galaxy S 1 & Galaxy S 3)
Desk mode - 365k ohm (confirmed finally thanks to mikejr83 cracking open the SGS3 dock his wife got him. 1k ohm for SGS1 & 1k or 365k for the SGS2)
Parts
The only appropriate solution I was able to find (a year or 2 ago messing with my old Captivate) was a USB MicroB Plug Breakout Board which was pretty decent at $4 + shipping.
mikejr83 found some slightly different micro USB connectors at Digi-Key ($0.66 each + reasonable shipping, $2 is the minimum Digi-Key order) and on E-bay (10 for $4 + $1 shipping) as well.
The Zenis SGS2 dock fits the SGS3 reasonably well & runs about $10 on Ebay (free shipping, but it takes about 2 weeks to come over from asia), It does not trip dock mode & just has micro USB passthrough connectors. According to this XDA thread it's easy to pull appart & looks to be very hackable.
Chopping up a micro USB connector will not work, they only have 4 wires & the pin #4 you need access to is buried inside the connector at the end so far you have to destroy the whole connector to get to it
I have a roll of maybe a couple hundred 619k resistors I picked up from a local electronics recycler in my Captivate days. I might start packaging em up and selling them off after I get back from DEFcon if anybody is interested & having a hard time finding them.
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For just dock mode & no other usefulness (like actually charging), you can see what doing a poor job of jamming the resistor in there on the Spark Fun breakout board for testing gets us (photo of my old Galaxy S1 because I'm to lazy to get dig it up and transfer the photos if I take any of my Galaxy S 3 showing the same thing).
AC charging
In order to get "AC charging" which goes up to 750ma instead of "USB charging" which only goes up to 500ma, you merely need to short out the 2 data pins (pin 2/white & pin 3/green) on a normal USB cable. Most people find it easy to short them (the center 2) on the big flat rectangular end (Type A) of a normal USB cable. Given my approach with the breakout board I just soldered a jumper across the 2 data pins on the board.
For my first (and only properly documented) dock build I used Friendly Plastic. Technically called Polycaprolactone it's really easy to work with and melts at around 60 degrees Celsius (140 F), also known as almost the temperature of the dash of my grey truck on a 70-80 degree day.... Oops. It would make a good desk dock, but not a car dock.
Commercial docks & potential mods for them
Given the dirt cheap Infuse dock I picked up I probably won't be working on another car dock unless I decide to put a case on my phone making it not fit in the dock. I have some oven bake modeling clay I'll probably try for that.
At $10-15 it's hard to beat the Zenis dock. On the 2nd page somebody cracked it open and the micro-USB plug looks very similar to the SparkFun one. I don't believe it trips any dock mode, but soldering in the appropriate resistor would be pretty easy. I hope to find the value to trip Desk or Media center dock mode & use Tasker to turn off E-mail and other non-essential noise during the night so as to not roust the wife.
Further information needed
If anybody has any more resistor values for various dock modes or other information to add, let me know.
Can you do both car mode and AC mode at the same time? And any idea if that would be a bad idea off a USB port that's built into a car?
KeithLM said:
Can you do both car mode and AC mode at the same time? And any idea if that would be a bad idea off a USB port that's built into a car?
Click to expand...
Click to collapse
Standard USB is rated up to 500ma.
AC mode is rated up to 750ma.
You need to make sure your power supply is rated to at least 750ma to safely trigger AC mode. You will have to check with the manufacturers specs on what that USB port is rated for. You can trigger AC mode and any of the dock modes at the same time (verified on my old SGS1 Captivate and I'm 99% sure the SGS3 is the same), they don't use the same pins.
If you are plugging into anything that actually expects data (USB port on a stereo as opposed to just a USB charger) I would disconnect the data (center 2) pins from that end, leave them shorted at the phone end.
Thanks for the info. My car reportedly has an extra USB port behind the dash I was hoping to use, but I can't locate it. So I might have to resort to using a power adapter. If I do that I'll use the 2.1A model from monoprice.com. So I'll use the power option based on which port I end up using.
Let me make sure I'm getting this straight: Using the two values for resistance you have you were only able to get the S3 to trigger into car dock mode, correct? There could possibly be another value which triggers desk dock mode.
My thought would be to get a rheostat and chop up a micro USB cable and adjust the level of resistance till the effect was achieved. Obviously I may have to get more than just a rheostat to achieve the correct range of resistance to try, but eh...
Once I figured out the resistance level I could then make a "desktop dock cable" by placing the resister inline in the micro USB cable. That would be a great solution for me. Thoughts?
mikejr83 said:
Let me make sure I'm getting this straight: Using the two values for resistance you have you were only able to get the S3 to trigger into car dock mode, correct? There could possibly be another value which triggers desk dock mode.
My thought would be to get a rheostat and chop up a micro USB cable and adjust the level of resistance till the effect was achieved. Obviously I may have to get more than just a rheostat to achieve the correct range of resistance to try, but eh...
Once I figured out the resistance level I could then make a "desktop dock cable" by placing the resister inline in the micro USB cable. That would be a great solution for me. Thoughts?
Click to expand...
Click to collapse
The SGS1 resistor value for car dock worked on the SGS3, no luck with the desk dock resistor.
Resistors are used in that location for non dock stuff too... Jigs to trigger bootloader and recovery mode, etc. I wouldn't try the rhestotat thing personally. Previous values were found in Samsung or the CPU vendors documentation somewhere. I'd start there or use an OHM meter on a dock we know trips desk or media mode.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Fallon said:
Resistors are used in that location for non dock stuff too... Jigs to trigger bootloader and recovery mode, etc. I wouldn't try the rhestotat thing personally.
Click to expand...
Click to collapse
Thanks for the heads up! :good: I got out my breadboard last night. Had a bit of down time at work and was just getting ready to call a few RadioShacks around town to see if they had some pots in stock (didn't expect them to, but they list a few on their website) so I could hack up a cable this weekend.
One question though, if I had the phone powered on and was to start with a linear taper pot and go from 0 to say 1M ohms (found one that would cover the entire range without me having to add resisters in there) I could possibly trip the phone into bootloader or recovery mode?
It would seem to me that in essence what I would be "doing" is plugging in various USB cables which had a different resistance in that location. It seem odd to be able to take a powered on (even screen unlocked) phone and have it just dump to recovery or bootloader with the plugging in of a cable (assuming that I had the real version of the cable/dock/jig).
That said, I'm glad you gave me a heads up as I might want to do a bit more research on this before I just sit around with my multimeter and a pot going through various resistances just to see what happens. I suppose what "happens" might be something I really, really do not want! Or, maybe I end up finding a way to unlock a VZW phone by accident! Yea, like that'd ever happen!
EDIT:
This new phone has me not writing code and doing more searching around the internets for information! I found this post http://forum.xda-developers.com/showpost.php?p=20710266&postcount=14 The poster shows that they use a 365k resistor for car dock. Preceeding posts indicate this was for a S2. I still have to go through my resistor "collection" to see what I have sitting around. I may still hack up a cable this weekend.
Ok. So I got a pot and was setting up a test bed when I cut the end of a mini USB cable. I realized it only has 4 pins. My thought was to use one of the dozens of mini USB cables instead of my limited amount of micro ones for my first tests. Basically I was going to take the A side and plug it into the charger to power my breadboard.
When I saw that there were only 4 pins on the mini B side and hence four wires inside the shielding it got me thinking about the micro B end. Both the micro's and mini's A side have 4 pins. If the micro B side has 5 pins where does that 5th id pin go? Does a micro cable have 5 conductors the length of the wire which the id conductor terminates to ground at the A side?
Now I'm confused on how the accessories are manufactured so as to make the phone go from USB charge mode to A/C mode. I'd really like to sit around now that I have this pot to test various resistances in order to see the outcome. Quick Googling hasn't found any negative side effects (yet...).
Sent from my SCH-I535 using xda app-developers app
Micro USB has 5 pins with the new 5th pin only existing on one end to use as an ID pin for what end of the cable it is. Makes it easy for the resistors that Samsung uses to trip the various modes.
Sent from my SAMSUNG-SGH-I747 using xda premium
I was just looking into what all the pins do because I planned to make a small board with A and B connectors and wire the resistor in there. Now I see that's pointless. I figured the shielding on other connectors was equivalent to the 5th pin.
I'm going to have to strip down a micro USB cable and see what I find in there.
I'd recommend looking at that breakout board from Spark Fun I linked up top.
Sent from my SAMSUNG-SGH-I747 using xda premium
http://forums.androidcentral.com/epic-4g-accessories/64959-what-triggers-car-dock-mode.html#anb
Mentions 365k as well as 1k to trigger desk dock. will try it when I get a chance.
Sent from my Transformer TF101 using Tapatalk 2
I've stripped down a micro-USB connector on one of my monoprice.com cables. I've found that the pin is there on the backside of the connector and just not connected to anything. Unfortunately I did too much damage in the process to try and reuse it. I think if I can strip another and be more careful I can expose just the one pin I need, then expose some of the wiring further from the connector and very carefully slice open the ground and connect the two with the resistor. It's also possible the shielding is connected to ground, so I might be able to attach it directly to that. Unfortunately my voltmeter is out of commission so I can't check that at the moment.
KeithLM said:
I've stripped down a micro-USB connector on one of my monoprice.com cables. I've found that the pin is there on the backside of the connector and just not connected to anything. Unfortunately I did too much damage in the process to try and reuse it. I think if I can strip another and be more careful I can expose just the one pin I need, then expose some of the wiring further from the connector and very carefully slice open the ground and connect the two with the resistor. It's also possible the shielding is connected to ground, so I might be able to attach it directly to that. Unfortunately my voltmeter is out of commission so I can't check that at the moment.
Click to expand...
Click to collapse
Ok. To clarify, the ID pin doesn't have a wire/conductor that runs the length of the wire?
Sent from my SCH-I535 using xda app-developers app
mikejr83 said:
Ok. To clarify, the ID pin doesn't have a wire/conductor that runs the length of the wire?
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Definitely not in the cable I pulled apart. I've looked around for a micro-USB extension cable, but haven't found one so far. Potentially such a cable would have the fifth wire.
Straight from the land of the rising sun! Straight from China! http://www.ebay.com/itm/10Pcs-USB-T...ltDomain_0&hash=item20c49dfc46#ht_2925wt_1163
DIY Micro 5pin male USB connector! $4 for 10 of them. I just ordered a set. Once I get these it should be easy to build a test connector that will run through my pot so we can try different resistances.
This is what I was hoping of finding. I wanted to take a 1.5-3ft USB cable and put an end on it that would put the phone into desk dock mode. That way I could connect the cable to my keyboard and set my phone in a cradle that I previously purchased.
EDIT:
Shipping is a $1. Total paypal amount was $4.99
EDIT 2:
I'm a tard. Also got shipping confirmation. Could take up to 30 days . Hopefully it's on the shorter side of their estimate of 7 days. I guess that gives me some time to put together a monoprice order for some cables.
mikejr83 said:
Straight from the land of the rising sun! http://www.ebay.com/itm/10Pcs-USB-T...ltDomain_0&hash=item20c49dfc46#ht_2925wt_1163
DIY Micro 5pin male USB connector! $4 for 10 of them. I just ordered a set. Once I get these it should be easy to build a test connector that will run through my pot so we can try different resistances.
This is what I was hoping of finding. I wanted to take a 1.5-3ft USB cable and put an end on it that would put the phone into desk dock mode. That way I could connect the cable to my keyboard and set my phone in a cradle that I previously purchased.
EDIT:
Shipping is a $1. Total paypal amount was $4.99
Click to expand...
Click to collapse
Japan is the land of rising sun but otherwise great find
http://en.m.wikipedia.org/wiki/Universal_Serial_Bus#section_4
USB 1.x/2.0 Mini/Micro pinout
Pin Name Cable color Description
1 VBUS Red +5 V
2 Dā White Data ā
3 D+ Green Data +
4 ID None Permits distinction of host connection from slave connection
* host: connected to Signal ground
* slave: not connected
5 GND Black Signal ground
So definitely only 4 wires in a standards compliant cable, not 5. Pin gets left free or shorted directly to ground (or shorted via a resistor in Samsung's case for dock mode)
Nice find on the cheap micro USB connectors.
Sent from my Transformer TF101 using Tapatalk 2
Now that I'm at work and doing nothing really important I've had time to dig through digikey for a similar part. I just don't think I can wait that long to get those other pieces!
The only thing I've been able to find that is close is this:
http://www.digikey.com/scripts/dksearch/dksus.dll?lang=en&mpart=10104109-0001LF&vendor=609&cur=USD
I ordered 3 and had them shipped USPS First Class. That will give me something to test with hopefully by the end of the week.
BTW, it's been such a long time since I ordered anything from digikey that I didn't realize they dropped their minimum order size requirement. It's awesome that they'll ship a $2 order!
Check GPS USB cables... they have all 5 leads
The USB extension cable is common for GPS units. My car radio has garmin built in, and when I added the fm traffic antenna, I needed a Mini USB (not micro) cable and quickly found out that "standard" off the shelf cables only have 4 wires, when the mini and micro usb ends actually have a 5th pin, but it either gnd or n/a at all - the standard extension cables off the shelf are extremely cheap, but useless for an application where the 5th pin is needed. BUT when I search for a GPS cable, it has all 5 pins. Its also about 5x more expension - When I bought mine it was like $25 or something online, but I can't remember where... it was from a GPS outlet place I found online. Just posting my limited experience for those to consider, and maybe prices have changed since then?
GOOD LUCK
(btw: I love this thread, I love building stuff too....)
Hi All
I am currently in the process of installing my Note 2 into my car as a permanent fixture for media and sat nav. It is now flush mounted in fibreglass in my dashboadd, charging through USB and audio through 3.5mm. I want to use my UCA202 DAC which will allow better sound, but crucially allow me to mix my main phone audio through it for handsfree. For this I need to be able to charge and use OtG at the same time. This I know has been done to death, but what I haven't seen follows...
It is known that you can retrofit an inductive coil for wireless charging but it's slowslow. My question is, has anyone tried hard wiring 5v from a USB cable DIRECTLY to the 5v pins inside the back.? Is this likely to work or will the hardware specifically expect to see resistances etc associated with a coil? If it does work does it fast charge? If over 500ma?
It doesn't matter if it looks dirty because it'll be hidden behind my dash. Just curious if anyone has tried it before I try and send my phone up in smoke
Cheers
Sorry can someone please move to Q&A. Not been here a while and didn't see the button. Ta
I don't think so. It is limited to 1A tops i think (can go higher, but 1.2A is already dangerous.), so Your best call is to get an OTG Y-splitter which lets you charge + otg at the same time, but i can't tell You im 100% sure about that (about 95% sure it will work, since my multimedia dock is basically same thing, but along with MHL and audio jack.