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A multiplexer selects one of two (or more) inputs based on a control input. It then outputs the selected input.

4
votes
1answer
I am trying to get a Multiplexer to work with the Arduino. Description at sparkfun Datasheet I thought the wiring was pretty simple and as a basic test, I have AREF connected to C1(multiplexer) and … a floating wire connected to C0. Everything on the interfacing side maps almost 1 to 1 with the arduino. I am using this simple code for switching the multiplexer void select_wire(char which …
asked Apr 18 '10 by Earlz
4
votes
1answer
I'm needing to create a 4 bit, 16 input multiplexer. I know I could describe this as a long list of S => when "0000" etc.. but I think that's not very clean, and I'd like to opt for a generic n-bit multiplexer so I can reuse it later for more inputs or whatever. How would you do this? …
asked Apr 3 '11 by Earlz
3
votes
As rzrgenesys187 said: If pin C0 floats HIGH and C1 is connected to AREF which is also HIGH, then there shouldn't be any change. Did you try connecting C1 to ground to get zero when you ru …
answered Apr 20 '10 by Earlz