Quite a lot of news this time :)
Driver Board Update
I completed my driver board testing when I got back from Poland after Easter. The only thing not looked at yet is HDCP functionality. Most of the issues arising from testing were small and most of those should be able to be fixed in software. (e.g. issues with some of the OSD menu settings).
But there were two issues that need to be fixed in hardware...
1. When trying to power the Pi from the USB 'Pi Power Port' it worked, most of the time. But when under heavy load, e.g. when using the Pi camera, the voltage between the Pi's test points sagged to an uncomfortable level.
2. When running from the 12V input, one of the inductors got rather hot.
Actually 1 & 2 are related, so a tweak of the power circuit should sort them both out.
We need the USB 'Pi Power Port' to be able to deliver whatever it takes to keep the Pi's working voltage under load as close to 5V as possible. 4.75V is regarded as safe for all models of Pi, although some can handle less (I consulted Gordon Hollingworth).
Using a bad power supply or the wrong USB cable was enough to put the Pi into a 'boot loop'. We need it to be more robust and have enough headroom. So some tweaking to the power circuit is currently underway and we hope to have the next iteration driver board within a week or so.
LCDs Will Be Ordered Soon
We are poised and almost ready to order the LCDs. We're now confident that things are falling into place and will place 'the big order' soon.
Survey Is Drafted And Will Go Out Soon
A draft survey is prepared and will go out soon. KickStarter has now made some changes so that you can update your address even after submitting your survey results. This could be helpful if anyone moves house after completing the survey.
Nearly There With The Enclosure Design
I just picked up Paul's latest enclosure design. Although it did need a little drilling and Dremelling to get a Pi to fit inside, I got one in and booted it up to see how it would work.
As you can see, it fits, and it works...
This was all running from one power supply.
Cambridge & Oxford Jams
Alex will be at the Cambridge Jam tomorrow and the Oxford Jam next week, and will take the lastest prototype with him.
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Have you a nice weekend.
Alex & Dave