Am 13.02.2014 um 01:43 schrieb Michael Mrozek:
Am Wed, 12 Feb 2014 21:25:13 +0100 hat "Dr. H. Nikolaus Schaller" hns@goldelico.com geschrieben:
Hi,
nice, thanks :)
I have added some photos of the alternate SIM/SD combo slots that we use in the GTA04. They would be nice but
- they are too thick (3mm instead of 2mm)
Would that really be an issue? Don't forget: There will be a hole in the case where you open and close it.
Ah, you may be right. It basically depends on the thickness of the plastics above the other 2mm components. Which are the battery connector, the UMTS module and the SD readers.
So we have this stacking (seen from top)
Battery Battery-PCB with gold contacts Battery bay floor thickness (plastics) Components PCB
The critical thing is that the battery connector must reliably connect the battery... If we move the battery upwards, we might need one with more distance of the spring contacts.
So the thickness of the case can be added here as well.
- we have no spare SD/MMC driver
That's a reason ;)
Hm. What about adding it anyways (for the case design) and leave the MicroSD side unconnected. Or connect it to 6 pins of the B2B connectors for the CPU module. Then, a future CPU could use them and the case is prepared.
IMHO we should move the upper key row a little down - because the mounting pins from the USB Hosts are very close. Especially the Power button in the middle.
That shouldn't be a problem.
BTW: I found a company in Munich who offers silicon keymats. I'll have a meeting with them next Wednesday :)
Ah, I remember that I found one some years ago in Gilching? Germering? But it may be a different one. Focus of companies change over the years.
BR, Nikolaus