Thanks for the info and help Mike.
You said:
"plus the circuit to convert the encoder to a clock up and clock down signal."
Do you mean a decoder circuit to create a clean pulse output? Say a .02 or 2ms pulse? Like a debouncer/decoder chip I posted about earlier?
You also mentioned that there are 6 IO lines available on your H800 board. Are those lines readily available as predrilled holes in the board itself so a group of wires could be soldered in, or would there need to be some modifications done to the board?
I also was curious if there was any room left to create a new group of LED drivers.. say to control 6-8 LED's.. I'm really liking the idea of encoders with LEDs in them that could change colors to indicate function.. I assume we could make the encoders change what they control.. say if one is red, it's controlling the VCF level, push the encoder down and it changes to green to indicate it now is controlling a LFO.
I'm also curious if you have access to a circuit board manufacturer to create the new board relatively cheap.. I assume you do since you had the H800 board done relatively cheap and at low quantity.
I've got a decent bread board to build a prototype, just would need help in getting an actual PC board made.
I will research the devices you mentioned and see if I can start to come up with some designs.. it would be helpful if I could see the schematic for your board to physically note where the IO lines would be located at.
Thanks again,
-Blaine
--- In korgpolyex@yahoogroups.com, Michael Hawkins <korgpolyex800@...> wrote:
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> and I could add that the counters would be read by the CPU through a 74HC244. One for each.
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> So the parts list so far is the encoder itself, two 74HC244's and two 40HC24 counters plus the circuit to convert the encoder to a clock up and clock down signal.
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> I think we could design a board that supported three encoders for less than 10 bucks each.
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> Mike
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