[Open Discussion] Soldering in Micro sd card reader to Nexus 7/ build log
Posted 29 August 2012 - 09:55 AM
i almost forgot, as for the tiny card readers i got mine on ebay for around 2-4 bucks. look up "micro sd card reader mini".
Edited by Kpa2727, 29 August 2012 - 09:57 AM.
Posted 29 August 2012 - 10:41 AM
Posted 29 August 2012 - 02:49 PM
Posted 30 August 2012 - 05:13 AM
Also - to get power from the pogo pins...maybe it needs to be tapped before the diode. If I'm not mistaken those pins should be protected via diodes to prevent 'wrong way traffic'.
I'd be concerned about charging and having it mounted at the same time. example would be transferring from pc to the tablet via usb cable. If I understand correctly, this would unmount the usb and go into data xfer/charge mode.
There are some datasheets for usb controllers out there that list the impedences for the ID line in the micro-usb spec, maybe one of those is the key to having both charging AND mounted at the same time. I believe 36k is the resistance needed...but would need more confirmation and I need another flash drive and some connectors to find out.
Edited by nst6563, 30 August 2012 - 05:14 AM.
Posted 30 August 2012 - 11:30 PM
Edited by Kpa2727, 30 August 2012 - 11:33 PM.
Posted 31 August 2012 - 03:29 AM
Edited by nst6563, 31 August 2012 - 04:35 AM.
Posted 31 August 2012 - 09:25 AM
Anyhow... in regards to the boards, I highly doubt that they use the same boards. Samsung and Asus are rivals and wouldn't share proprietary components like circuit boards. Aside from both being Korean, I think the similarities end once you open the cases. I might be wrong, so it's worth looking at an Galaxy Tab tear-down.
Posted 31 August 2012 - 09:34 AM
Posted 31 August 2012 - 10:29 AM