Now I am on the new version of dock. It is the first time I find microSD is that big for VoCore Dock…
No free place…Where can I place you, tiny SD card? Maybe a SPI camera(if this thing exists) is a better choice. 😀
Any good idea? Please leave a comment.
How about extending the pins to another board below the dock? This can house the MicroSD, and other SPI based add-ons? Or the base board can contain bigger diameter mounting holes?
SPI camera module is 22x22mm! Almost as big as the VoCore itself.
Emm, I thought SPI camera will save some space due to we can let it “stand” on the PCB.
Here’s one example of SPI camera: http://www.cn-lcf.net/sdp/561974/4/pd-2909996/9560940-2127043/SPI_high_speed_JPEG_Camera_Module.html
Maybe just have a breakout. People can attach a socket and cable for an SPI camera if that’s what they want to do with it.
What about vertical Micro-SD? http://www.yamaichi.de/products/connector-solutions/card-connectors/micro-sd/micro-sd-card-reader-vertical-mount-manual-type.html
Or Header type Micro SD for the smallest footprint? SMK make one.
Or “X-Multiple” brand connectors? LAN + MicroSD, or USB+ MicroSD.
Just some suggestions.
Just find a good microSD connector: 47309-3351 MOLEX 🙂 Its price is a little high but its size is prefect
About the camera, do you know the chip they are using? Only 0.3MP, not very well.
Some webcams that use the earlier RT3050F SoC, use a USB based imaging processor to connect to higher resolution imaging sensor.
EG D-Link DCS-930L uses iPassion iP2970 to interface USB and the imaging sensor.
SPI is still too slow for high resolution image sensors!
Emm, for camera part, USB camera is the best choice.
Now I find the SPI connector, this should be enough for the little dock.
In fact, a dock should be mainly a GPIO seat for a bigger pins holder. Everything else could be attached to it, like cams, sensor or whatever. Vocore main objective is to be small and versatile, so my proposal is a dock with JUST that:
– microUSB plug.
– 20 pin socket for GPIO
– 4 pin socket for master USB
– 4 pin socket for ethernet (useless after first boot 😉 )
– microSD socket
As far as I get the alpha Vc, i will try to convert the raspberrypi GPIO to Vc. Remember, without it, Vc is undercapable.
Something like this, mUSB and mSD instead RJ45 and SD, in a 25^ board
http://www.xcore.com/projects/xs1-l1-ti-dp83848-ethernet-phy-prototype
GPIO do not have to on dock, the core board already has pin hole, easy to be connected with breadboard wire.
For now mircoUSB is only use to power supply, but no function…
Rest is OK.
It is not a matter of how connect components, but a way to make Vc compatible with hundreds of boards for R-pi 😉
I think you mean the SPI 🙂 Had added that, but not for alpha.
Well, I think, the user of micro SD will put it on a baseboard together with eth,usb and some other parts e.g. i2c I/O expander, temperature sensor or something else. Others will put it on a flat Dock with some other parts.
So,do not deface the board with it 😉
Haha, that’s the best comment I want to heard 🙂
I’d just scrap the full size USB-A socket and put another micro-A instead, just use another OTG cable.
Maybe also displacing the ethernet socket forward so it protrudes a little from the edge of the board could make for some extra space.
VoCore Dock main target is to make the tiniest DIY router 🙂 So ethernet is necessary.