Re: MK14 programming interface - Arduino version
An interesting point about complexity and making it simple to hand wire it. I can get a bit carried away when I find out "clever" tricks like Charlieplexing. Maybe it might be better to keep in simple and just upgrade the Arduino up to a Mega 256. Not that much bigger than the Nano and then I can then get all the bits on a shield.
And well done for your nano shield it looks very neat, what are the chips you used for the optocouplers?
I see that you have a set of pins on the top, I assume you have a cable set to connect to the MK14 edge connector. How have you handled the reset switch? I have a couple of wires from the MK14 that end in a 2 pin plug on the board.
Yep PCB boards can be a bit of money but given what I have already spent building the MK14 replicas it's not too bad. If I do manage to produce one I certainly will make it available to others as as you say you normally have to have a number made in one go. Great if it works but a bit of a waste if it does not.
David
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