After all that - I spotted the Breadboard Dock as one of the options at ABRA Electronics (Canadian Distributor). Bought it and had it in my hands two days later. So finally answered my own question too ;-)
@Matthias-Nowak We seem to generally concur that there are some issues etc. that could be fruitfully addressed.
One final comment on all this in relation to pins 15, 16 and 17:
While these pins on the Omega and Omega2 are not exposed on the Expansion Dock, they are used on the Expansion Dock for control of the expansion LED:
Pin 15 - LED blue
Pin 16 - LED green
Pin 17 - LED red
However, note also that with the Power Dock there is no LED and so these pins are neither used nor exposed. It seems a shame to have 3 pins not exposed just to control an onboard LED that isn't always available
But I REALLY wish I could flash it with an OS one day, like, I don't know, debian server???
You quite certainly can. But what services are you REALLY interested in? You haven't mentioned it. Maybe those specific ones have already been compiled for an ARM processor. A system does NOT need to be labeled Debian to be a Linux Server system.
@Flemming-Richter i dont have the time right now to work on them and also forgot about them because i got a different project running too. but i will probably check back this summer, so it will take time
@Benjamin-Rau I have just had a play with my Omega and pins 13 and 14 when set as input both operate equally and as expected.
Unless there is a problem with my Omega, there are a few things you could check (forgive me if these are obvious to you or you have already done them :-)):
Are you sure that the circuitry is the same for 13 and 14?
Is the code used to access each of 13 and 14 the same?
Is there anything else that is using one pin but not the other?
If you are using mechanical switches to control the pins, do you have a suitable pull-up/pull-down resistor to pull the pins to the appropriate state when the switch is open?
If you are using mechanical switches, do you have suitable de-bounce circuitry to account for noise? A capacitor in parallel with the switch (along with the use of pull-up/pull-down resistors) should handle this
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