BeerBelly
Member
128 by 128....You are going to need 32You will need 16 595's. 8 for the rows, and 8 for the columns.
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128 by 128....You are going to need 32You will need 16 595's. 8 for the rows, and 8 for the columns.
128 by 128....You are going to need 32
do you mean a ferrofluid actuator to control the fluid for what I need?
4.5 to 5 volts@BeerBelly: what is the output voltage for the 595's?
No, The voltage is high enough but 4ma is not nearly enough current.@BeerBelly: So that should be plenty then right? I tested a tiny U shaped wire with a 1.2 volt AA battery and got a good attraction.
Yes you could do it that way, and use "and" gates(diodes) at the matrix points. I think the cheaper and more compact way would be to find or build a PNP equivalent for columns.You would, of course, need 512 of those ULN2803's for a 64 x 64 array of coils.
Each ULN2803A would replace 16 transistors and 8 diodes and quite a few resistors@BeerBelly: oh ok, maybe it would be cheaper to just use transistors then?