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>The manufacturer’s similar chips max out at 64K

Perhaps these should be considered. 64KB is a world better than the 2K in the selected variant (CH32V003) in that micro-controller family.




As pointed out in my other comment, you can add vast amounts of extra functionality for very little cost, up to a Linux-running board with 64 MB RAM for $5.

But that's not the point. The point is: what is the cheapest stand-alone usable computer you can make?

"Usable" in the same sense as a ZX80 or Altair 8800 or Apple I of course, not in the sense of a modern computer.

If you pay 50c for the CPU instead of 10c then you just increased the total cost by 50%.


>If you pay 50c for the CPU instead of 10c then you just increased the total cost by 50%.

True. But is the difference actually 5x? CH32V003 shouldn't be the only option.




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