![]() ![]() You can't have all of the objects named 'mux'. You can wire the ENA signals to keep the multiplexers enabled all the time. I would recommend connecting each SIG pin to a separate input. Yes, you can use one set of select/address outputs for all multiplexers. set the 4 muxChannel selection pins to switch to desired muxChannelĭigitalWrite(controlPin, muxChannel) Initialise the muxChannel selection pins * This example code loops through each channel of the CD74HC4067, reads the value, then prints the value in the serial monitor. Here is the example code (I tidied it up a bit) from the site (compiles, NOT TESTED!): /*CD74HC4067 example code S0-S3 and SIG of the chips would be wired to the SAME pins on the arduino. If you are going to use multiple chips, if it was me, I would wire EN of each chip to a different digital pin to select the chip I want to SIG to be switched to. Reads from channel i and returns HIGH or LOW.Īs you see here, the EN is put to ground. * Reads the 16 channels and reports on the serial monitor if the corresponding Waits for serial port to connect (needed for Leonardo only). * 4th-7th arguments are the Arduino PINs to which the S0-S3 pins connect. * 1st-3rd arguments initialize SIG pin (digital input on Arduino PIN 3). I would like to use for example this code: #include "Type4067Mux.h" ![]() What would be the coding for that? I found some Librarys for the Multiplexer but with no information how to conenct them together. But if at step 3 it doesn't works, may be a damaged 4067 or a little hidden bad connection.I want to connect some multiplexer to my Arduino.įirst question is can i connect all S0-S3 together and control them only with the SIG pins? Remove the leds and connect back the opened lines.Īny fail in steps 1 or 2 may indicate that the pin are damaged but you can use another analog pin and other pins for the channels respectively.That would be an OK for the channel selection pins. According to the code, you should see an increasing 1 Hz, 4 bits counter (rather, a BCD counter) in thet formed 4 led array. Reply the previous step to each of the channel pins.That would be an Ok for that pin of the Arduino. Then change in program only the value of testvalue at the beginning of the code and check if the led changes their intensity according to that. ![]()
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