Android G1 Serial to USB Cable
2012-12-25 13:44
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Intro
Android G1 Serial to USB Cable
Learn how to make an Android G1 2.8v serial to USB Serial device adapter (using a 3.3v ttl to usb serial adapter). This can be used for kernel debugging/etc with your computer. This project shouldn't cost you more than 40 bucks if you alreadyhave basic electronic tools such as a soldering iron.
Notice: The ability to use 3.3v ttl level serial is based off of google group discussions and a picture of a serial cable used by an alleged android dev. 2.8v level serial was determined via someone using a voltmeter. Build/use at your own risk and
check the comments of this instructable too before beginning!
Information may be applied to build a 2.8v serial to RS232 converter to interact with RS232 devices, or a 2.8v serial to serial 5v level converter to interact with microcontroller such as an
Arduino. I may post instructables on how to make these once I play around with the G1 kernel some more. :)
This tutorial assumes basic knowledge of soldering. If you don't have this skill you should find an instructable regarding it and practice a bit. The soldering required for this project isn't difficult, but needs to be done in a small amount of space which
could be difficult for beginners.
This cable was created based off of information received from the
Android-Platform Google Group.
... Specifically these two threads:
http://groups.google.com/group/android-platform/browse_thread/thread/f03730e25cc3fe55?fwc=1
http://groups.google.com/group/android-platform/browse_thread/thread/439d3f3af7a88a09/10a80eb835e8dbcc?lnk=gst&q=serial#10a80eb835e8dbcc
...This picture of a "mystical" g1 serial cable helped (and confused!) too:
https://www.noisebridge.net/wiki/Image:G1-two-usb-to-serial-cable.jpg
Please leave constructive criticism/comments if you find any steps wrong, confusing... or poorly written!
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