Kindle Voyage Teardown / Root

[awh_tokyo]

Two questions:

1. Does anybody happen to know where I can find a 1.8V ref on the Voyage motherboard? Right now I'm generating it with a regulator, but would rather eliminate that if I can.

2. The bit of plastic near the top that has a magnet and a RFID (?) chip: Does anybody know what that's used for? It doesn't seem to be connected to anything. Removing it would leave lots of space for the USB-Serial board.

[NiLuJe]

IIRC, there's been a rfid chip stuck on the inside of the case since the K2 or the K3, we assume it's used during the manufacturing/shipping process.

[pgfiore]

Ecostin, no solding, no strains... warranty still available! Sounds great.

[knc1]

Originally Posted by awh_tokyo

Two questions:

1. Does anybody happen to know where I can find a 1.8V ref on the Voyage motherboard? Right now I'm generating it with a regulator, but would rather eliminate that if I can.

https://www.mobileread.com/forums/sho...85#post3123385

[awh_tokyo]

Originally Posted by knc1

https://www.mobileread.com/forums/sho...85#post3123385

Beautiful idea! Certainly less hassle than dealing with a regulator.

For my Voyage, I ended up finding a 1.8v ref inside, and ended up tearing off the pad when I was trying to permanently solder a serial adapter into place. Oh well, at least that happened after I got the Jailbreak on. I'll leave the permanently-connected adapter until next time I need to open it up.

[knc1]

Thanks!

I was interrupted in my KT2 Exposed thread right after I had made plans for add-in adapters.
But I still have the room-full of materials and (modern) pcb construction things that had been ordered at that point in the thread.

Perhaps I will get some hobby time this summer to pick up that project again.

[kocoman]

Originally Posted by awh_tokyo

Beautiful idea! Certainly less hassle than dealing with a regulator.

For my Voyage, I ended up finding a 1.8v ref inside, and ended up tearing off the pad when I was trying to permanently solder a serial adapter into place. Oh well, at least that happened after I got the Jailbreak on. I'll leave the permanently-connected adapter until next time I need to open it up.

Thats why I wait for external 1.8..

[knc1]

Originally Posted by kocoman

Thats why I wait for external 1.8..

Get the wire ended, FTDI adapter cable specifically built for 1v8 volts.
http://www.ftdichip.com/Support/Docu...2RG_CABLES.pdf
That would be the TTL-232RG-VREG1V8-WE model.

This is the same one that was recommended at this site for years (although many people thought it too expensive).

- - - -

NOTE:
My advice to you still stands -
If you intend to wait a couple of years until you use the serial port interface, you should also wait a couple of years before selecting the serial port interface hardware.

Today's decision may not be the best decision available when you get around to doing this.

[awh_tokyo]

Originally Posted by knc1

If you intend to wait a couple of years until you use the serial port interface, you should also wait a couple of years before selecting the serial port interface hardware.

Today's decision may not be the best decision available when you get around to doing this.

After reading the post from the guy who put a Bluetooth-Serial module in his, I've been toying with the idea of doing that, but using a 555 or something to turn it off if it's not paired within a couple minutes, to save battery. Could put that on a little PCB with a level shifter for the serial interface. Probably be compact enough to fit in the Voyage case.