In an effort to at least show that the iPhone has nothing on the T-Mobile G1, someone has found a way t make the G1 work with an iPhone/iPod Touch dock. This hack may not be what you expect or anything to look at really, but it does show that this is in fact possible.
The easily recognized iPod dock connector has a very well known pinout so the process was not too hard to figure out. To figure out the pinout of the HTC USB connector he just split open the hands free adapter he got with his T-Mobile Dash. Below is the process outlined to create this converter.
Most of the wires were labeled, “L” “R” “M” ect. It took a bit of fiddling to discover that connecting pin 7 to the audio ground ( pin 8 ) turns on the external audio. Sparkfun sells 30 awg (Gauge) wire wrap wire that is perfect for soldering to the ultra tiny pins on both the HTC ExtUSB connector and the iPod Female connector.
We used pins 1, 2, 3, 4, 16, and 23 on the iPod Female connector. If you gently bend the pins out it makes it much easier to solder, but be careful the pins break easy.
1 & 2 are Ground -
3 is Right Audio +
4 is Left Audio +
16 is USB Ground -
23 is USB Power +5
It is important that you do not mix the audio and power grounds or you can get a nasty hum.
On the G1 side of things the upper half of the connector is a standard mini-usb pinout, the bottom is very different.
We used Pins 1, 5, 6, 7, 8, and 10.
1 is USB Power +5v in
5 is USB Ground -
6 is Left Audio +
7 is marked “AG” on the T-Mobile Dash headset board, connect this one to pin 8 to enable audio.
8 is Audio Ground -
10 is Right Audio +
Now we wire the two connectors together like so:
iPod pin – HTC ExtUSB pin
1 ———— 8
3 ———— 10
4 ———— 6
16 ———— 5
23 ———— 1
Don’t forget to solder together pins 1 & 2 on the iPod side and pins 7 & 8 on the G1 side.
When its done it looks like this:
droid-dock
So we have audio from Audio player and YouTube, and the speaker dock charges the G1 too.
Have fun!
[Via Webnetta]
,Michael Martin
Google And Blog
...Don't cut the white wire!
But for real...does anyone think we may start seeing any Ipod/Zune looking docks for the G1 or no...im really hoping so, but im leaning on not. The G1 is only another phone...its the OS which will keep growing.
looks more of a MOD to me.
Shawn: Sure where is it at?
Lukster: On my ghetto charger.. you know the one that I got the, Cease and Desist, letter about.
Shawn : Oh yeh, Ok I see it, [grab] Bzzzzzzz ,zz ,zzzzzzzzz.
Lukster: Shawn? ........ Shawn!
Please email me if you would be willing to do so - julies_orders@comcast.net
Thanks!
But more importantly, it shows that if someone makes a simple, professional looking adapter, the G1 will be compatible with many of the huge number of iPod accessories out there.
Good work!
Most Ipod stuff comes with fm radio so all you have to do is get a FM transmitter and send it through the air with the 3.5mm adapter.
and also - face it people, I love my G1 but the iphone is clearly better. there's no shame in that. I got a G1 because I wanted to be part of something new and open, not because I thought it would be better than the iphone right away.
This is not a finished product, and at this stage the phone looks like a fire hazard.
Anybody trying this, remember you can;t use a regular "mini usb" adapter - The HTC headphone style Mini USB plugs are very different and that is what lets them transmit the audio data.
I have noticed a significant difference in sound quality between my Dash headset and G1 headset so you may also want to stay away fro the dash connector. It is probably an issue with the actual speaker/driver - but who knows, the connection hardware may also be inferior.
http://www.tracyandmatt.co.uk/blogs/...tor_pin_config
http://en.wikipedia.org/wiki/Enhanced_mini_USB
ps im working on a "dock holder adapter" to hold the g1 in ipod cradles, ill get back to everyone on that.