What do you need to know about the PiFaceCAD? It is really quite simple - nothing much apart from a mcp23s17 16 bit GPIO port expander, the switches on port A and the LCD on port B.
Check out https://github.com/piface/libpifacecad/blob/master/src/ for the pinouts and ../util for the initialisation settings.
Since the PiFace CAD does not give you access to the other pins that it does not use or can be shared (GPIO 5V, 3.3v, ground, etc). Does anyone have a good solution for fixing that problem? The other problem would be how to access these pins and still have room in the case. Even if they would have used a header with a bit longer legs to get.
Why do PiFace make it so hard to get hold of schematics - their whole approach seems to be to try and hide the hardware and provide a set of pre-digested "examples". I've looked in various places and I can't find a schematic.
I was trying to find out if the switches are to ground or to volts, without resorting to the multimeter.
But thanks for the reference, as I was hoping to be able to modify the default setting on power up.
You are right. They did come up with the PiFace Rack to overcome it on the PiFace Digital.
I soldered two strips onto one before they became available which you can see here http://www.element14.com/community/roadTestReviews/1452
Yes, I'm unsure why they don't make them available either.
I seem to recall they buried the PiFace Digital schematic in amongst their blog.
I can confirm Mark's successful camera install.
I have taken the NOOBS on the SDCard installed Raspbian and done the updates/upgrades and switched on the camera with "raspi-config"
Nothing special just as the instructions on the Raspberry Pi site state.
Here's my pic:
Happy 4.am fellow Alien Bretherin :-)
Maybe it is the camera itself then
I am not having much luck with this road test
What is the policy on getting parts replaced under road test conditions?
It would be a shame given the time constraints, if we didn't explore all the options.
I have noted some RPi boards have a tape across the top of the plug.
I don't suppose that has managed to get trapped and travelled into the plug, during the installation.
I have also seen it where the locking part hasn't been pulled up prior to inserting the ribbon, and consequently it doesn't really make contact, or is intermittent.
I've also seen it where the locking part hasn't been properly pushed home and only some pins make contact.
When installed, it should look like this (note this is a normal camera, not the black NOIR version fitted to a ModelA)
You can see how much cable is inserted at the camera end, which is the same style plug as the board end.
(click on the image to enlarge)
You do need a little more power to run the camera, but I would have thought you would see other issues if its power related.
Also John, don't be fooled by the time ... while I have been known to answer during a night shift, this seems to be a case of the other side of the world, where santa comes here first!.
I have been reading thru the discussions this a.m. and I wanted to say how thankful I am for your support to Element14 Community and to each other. WOW...team work...!
So I am again sorry for the issues and delays...but thanks for being fantastic participants and for being spectabular team mates!
Have they all been shipped out? I was wondering when to expect mine.
My last communication from logistics was they are releasing today...(missing CBRPH-CAR ENCLOSURE - as this is still stuck in Custums)
I am wondering if it is indeed power related - maybe my USB lead can't handle the current? I know I am grasping at straws but I have tried several power supplies up to and including 5 volts, 2 amps (mobile phone chargers from Apple, Samsung etc).
I am still holding out hope that the camera itself is not the issue.
You should be able to check the voltage, however it will drop so quick that you'd miss it.
With one supply, I found the HDMI had lines of interference running through it, and it was close to the cutoff voltage.
I know a Samsung Galaxy charger works, and I wouldn't get too worried about its 700mA rating as the voltage holds at 5.1 or so.
Keep trying ...it will be quicker than waiting.
That's a shame that the whole shooting box is held up over the case.
While nice to have to complete the package, technically not needed to compete the task.