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> Atmega32u4 is like $3.43.. too much when you consider that you can buy a keyboard for $4.00. You can buy a McDonalds hamburger for $4.00 too, but if it's som
by technomancy 12y ago
> Atmega32u4 is like $3.43.. too much when you consider that you can buy a keyboard for $4.00.
You can buy a McDonalds hamburger for $4.00 too, but if it's something you're going to eat every day let's hope you can do better than that.
I've got a prototype keyboard that is built around a $19 ARM dev board that runs a firmware written in Forth. I tried running that on the ATMega, but 2.5kb of RAM is just not enough.
You can get bare ARM chips for nearly as cheap as AVR, but most people aren't going to be interested in a kit if it requires SMT soldering, so the daughterboard approach actually makes a lot of sense here. Surprisingly it only raises the cost from $4 to $9.