A multiplexer selects one of two (or more) inputs based on a control input. It then outputs the selected input.
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3answers
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Advice… Shift registers, multiplexing, or both
I'm doing a project that has a lot of displays, in the form of single leds or 7-segment displays. So the question is in the title. Using 8 bit registers, if I used them for all the leds, it would take ...
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2answers
158 views
Single and Double Click on Arduino Multiplexed Buttons
On my arduino project i have 8 buttons connected to a 4051 Multiplexer.
I would however like to add single and double click funcionalities to each of these buttons, but i can't find a way to do it.
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2answers
253 views
How to implement a 2-to-4 mux
Our logical circuit teacher asked us to draw the diagram of inside a 2-to-4 multiplexer and said it's going to be in our final exam. How is this circuit possible? I thought a mux always goes from a ...
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1answer
225 views
Looking for a 24vac switch from 3v inputs
I'm really new to building electronics, so please forgive my ignorance.
I'm looking to be able to supply 24vac (~.5A) to one of 16 outputs using 4 3.3v, 50mA inputs.
(Edited) The 4 3.3v inputs are ...
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1answer
51 views
Drawing circuit to compute mux
Ok so I've been working on this problem for a while now. I've been given
mux(\$p_{11}, p_{10}, p_{01}, p_{00}, x_1, x_0) = p_{x_1x_0}.\$
I found the boolean formula to be:
\$(!(x_1x_0))p_{11} + ...
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1answer
59 views
implementing palindrome using 2:1 multiplexer
A 4 bit number , ABCD is a palindrome when A is equal to D and B is equal to C . Draw a circuit to check whether a given 4 bit number is a palindrome or not. Use only 2:1 multiplexers.Do not use any ...
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0answers
109 views
Multiplexing a big 7-seg display with MAX7219
I've a problem with this circuit, it should drive 2 (or more) big 7-segment display using a MAX7219 and the relative Arduino's library. It uses ULN2003 and UDN2981 to use +12V and a series of 5 led ...
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0answers
29 views
Control 4 digit 7-segment (2 digits number each) using Verilog
How to program using verilog, where i want to control 4 digit 7-segment display, that will show 2 digits number for first and second 7-segment display, and the others with 2 digits number too. I know ...
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0answers
512 views
How to Fix Multiplication Circuit using Logisim
I am designing a circuit that multiplies 2 bit 2's complement numbers.
The circuit uses Full Adder to add and Multiplexer to multiply and ALU for arithmetic.
I need feedback on whether the ...
