Arduino Multiplexor - MUX INPUTS & OUTPUTS - ANALOG and PWM

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🔥Multiplexers and demultiplexers are devices that allow us to control a greater number of devices with a smaller number of inputs or outputs. We can use these devices to expand the number of inputs and outputs of a processor like Ardunio.
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00:00 Intro
01:45 Why use a MUX?
04:50 How it works?
07:08 MUX as output
08:05 Bit Read Function
10:08 MUX as input
11:18 More Specs
12:58 Thank you
Like share and subscribe to motivate me. Thank you
#arduino
#Modules
#tutorial

[@ELECTRONOOBS]

Join my Arduino Course (Spanish): bit.ly/2JY8icE My Tools: bit.ly/3uv8bc3 Help me on Patreon: www.patreon.com/ELECTRONOOBS

[@jorgeestefania3184]

you can actually turn two leds at the same time if you divide the time and frequency for each led. For example you could change the output channel every 10 ms and you would see that (virtually) different leds are on. This can also work for demultiplexing

[@eatthisvr6]

Would that work for toggle switches or would they flicker ingame?😊

[@PihkalTheTihkal]

You could have used a 74HC595 sipo shift register, it uses 3 control pins and gives you 8 digital outputs, but you can daisy chain them for as many digital outputs as you like while still using only 3 pins.

[@laurv8370]

Exactly my thoughts: use a shift register. Moreover, with a latch and output enable signals, you can also solve the issue about turning two (or more, or all) pins in the same time. But you lose the input ability hehe, I guess you can't have all.. 😛

[@tunahankaratay1523]

Shift registers aren't instantaneous. Although it won't be important here.

[@thekitsunedev_hun]

@@tunahankaratay1523 it could be used for daisy chaining pairs of mux devices

[@orange_tweleve]

​@@laurv8370for input ability yhetes the opposite of the ic , parallel to serial ic , I think it was 74hc165

[@laurv8370]

@@tunahankaratay1523 Shift registers ARE instantaneous. It is called latching.

[@TheUnofficialMaker]

I love it, Exactly what I needed. Thanks!

[@jlucasound]

I like these! And when an overlap of channels would/could be disastrous, you have a built in safety fail safe.

[@BRADASSOFFGRIDHOMESTEAD]

I have one, and never used it. Thanks for the video!

[@danielmelo3648]

Wow, super explanation of a Multiplexer, I'm new to this term and it was fascinating to see one in use inyour channel. Thanks a lot!

[@1_HighDuke]

Thanks for the great explanation!

[@siv_valentin]

Much simpler you can use charlieplexing on led part of optocouplers/SSRs , because it doesn't require an auxiliary ic for that task. For example with 3 i/o pins we can control up to 6 i/o devices, with 4 i/o ... up to 12 and so on. The basic formula for this is n*(n-1)=num of i/o, where n = num of i/o pins

[@BenM0]

@Electronoobs Thanks for sharing another awesome tutorial, that's very helpful for me. regarding your digital multimeter project, instead of using a bulky ssr why you didn't choose a small digital switch like LTC1477 ? i think that fits better in your small project's PCB.

[@lasersbee]

5:44.. Since only one output can be controlled at a time you could have used a single current limiting resistor to ground for all the LEDs.

[@dellodel9502]

You make great videos Thanks for the best explanation

[@marcomachado39]

Top 10, mais um excelente video.

[@studentofedison421]

Awesome video, plz upload more and more videos

[@buddhimaamarasinghe9997]

Excellent video ,Thanks for sharing your knowledge. Do other videos soon , Thanks.

[@joseraymondnn]

Hi! Thank you for this presentation. Do you know a way to read or write to multiple I/Os at the same time. I have a project where I want to read multiple PWM signals at the same time using "analog" hall effect sensors. Thank you.

[@jasoncook9817]

Thanks for this. I have a box of CD74HC4067 as I assumed them to be comparative to the MAX7219, good to know what I CAN do with them.

[@CLARVO]

Amazing 😄 could you please make a video on shift register?

[@FarizFadian]

Thanks for sharing sir.. it's very helpful & easy to understand..

[@kmhooibg7577]

i will suggest use pt65 switch/dip switch for the multimeter

[@x_emraah]

excellent video. but how it can be useful? for example, how we can drive 12v led strip with pwm?

[@Theeceeffect]

Can I also use this mux module for expand uart pins?

[@xavierortiz106]

This is a great video!

[@juanhurtado2679]

A shift register will be better if you want more than one output at a time

[@11219tt]

I think it's important to mention that it's not all that big of a deal that you can't select more than one thing at a time. In our world we are dealing with seconds of time. But the mux is dealing with nanoseconds. So even though it's true the mux can only do one at a time, it can do multiple in line and it willl appear to us as the same time because nanoseconds are super fast! Correct me if I'm wrong.

[@OAlexisSamaO]

thanks this was really useful,

[@nekam2000]

Thank you for the video. Is there any reason why in the second method you set muxSIG to an analog pin A0 while this enable pin can only be set to high or low?

[@Poult100]

Thanks for making this video. I was going to use one of these MUX devices to increase the digital pins of my Nano but had not considered the limitation of only being able to address one pin at a time. I now may have to use a different MCU or maybe design a latching arrangement. Which would you suggest?

[@slakjawnotsayin5451]

I'm in the same boat, wondering if there is a simple and cheap alternative that would easily add more I/O's that aren't limited to only using 1 pin at a time. I have used the 74HC595 sipo shift register method as well, but wondering if there's another way like this MUX but better?

[@edmardupreez8742]

Do you get a version of this device that works with 3.3V microcontrollers?

[@harrysharma9561]

How to use this chip in rc transmitter and receiver project you made earlier? I want to make a 10~16ch transmitter but ran out of pins this seems viable but how to read all inputs at same time and output too. 😅

[@Drxxx]

Super video, this is so cool, i made display 64x16 with max7219..

[@GnobarEl]

When the robot video series will start? Can't wait for it! 😍

[@abrahammagnifico9538]

Please make a video about EMF supression, to command relays, elctrovalves..... without any noise

[@PhG1961]

Nice video !

[@eatthisvr6]

what do you need to have multiple inputs at the same time, ie multiple toggle switches switched on for a game

[@shivavrd2154]

My nodemcu has only one analog input. Can I use a multiplexer to read multiple analog inputs from different servo motors?

[@tvamos73]

Why did you choose an analog MUX if You need a digital DECODER like 74HC138?

[@user-zy6td3fg5s]

Could you tell me where I can look at that future project with a large number of capacitive sensors? You are talking about this project at 12:10

[@holly-jothompson3717]

Ok. So. Ive a question, is this in a general sense, the same type of thing that is used to modify or tune a vehicles various control modules. Pcm bcm tcm. In regards to the piggyback style tuning modules like hondata and demon tuning.modules. Correct?

[@eatthisvr6]

Can you use toggle switches with these? Ie on else in game won't flicker??

[@ipadize]

how can i multiplex more arms to my body?

[@johnloda2417]

Do you have a link to that wiring picture at the 7:06 mark? It's a little hard to see in your video.

[@sarthakmishra5418]

Sir can we use more than one outputs or inputs at a time? Please reply

[@SecularMentat]

This seems like the basis for TDMA (time division multiple access) multiplexing.

[@EdwinNoorlander]

Why don’t use a 74HC595 and 74HC165?

[@EdwinNoorlander]

Or you can use a I2C / MCP23017 or SPI MCP23S17 port expender.

[@AmandeepRashwan]

When will you upload the homemade laser show dance device

[@hamzahansari6900]

Can you pls make a tht version of diy Arduino, with the chip that's needed to program the Arduino. What i mean is that use all tht components except the ones that can't be such as that chip or voltage regulators. It would be very helpful Thank you

[@Davidlahall]

Great video...you used pwm and you said the response time of the MUX is in ns range...why not program it to select the to inputs or outputs you need at the fastest possible rate it can handle and simulate having two I/O on at the same time...more than likely you will never in this application need that fast response time. It's like pwm Led dimming to ours eyes it's dimming but it's really not.

[@ShammoThePro]

Please make autonomous car

[@aod_]

Please make a Gaming Steering Wheel to play some racing games using Arduino and least number of passive components. Hope you will try my Suggested Project.

[@YoomarTuNoOmar]

Can you talk about charlieplexing? I've heard it is faster, cheaper and more reliable than multiplexing, but would like you talking about it

[@ShammoThePro]

Please make an autonomous car project

[@Rapptor22]

You said you can switch on only one output at a time. Does this mean, that you can receive signal from only one input at a time?

[@ohmslaw6856]

Thanks bro

[@SaliyaRuchiranga]

any chance that arduino 101 PWM episode coming soon ??

[@AlbertRei3424]

The important point with MUX is that the input signal is redirected to the selected ouput

[@mohdfarhan5255]

basically it short circuit like a switch right? Not like the channel reproduce the voltage? Im just wondering if I can redirect a 0.3V to whichever channel I want.

[@0124akash]

Mux and ads1115 Is same things?

[@Hi-zf4bn]

That module is a MUX-have for any Arduino project...😁

[@BRADASSOFFGRIDHOMESTEAD]

What software do you use for your animations?

[@fahadkhan463]

Which software?

[@artinfaez4932]

very nice

[@xntumrfo9ivrnwf]

2:15 you said to jump to minute 00:00 if I just want to see how to use the MUX, but that took me back to the beginning of the video

[@ELECTRONOOBS]

hahaaha my bad! edit error

[@omaral-gallab7735]

Can i use this system for harvesting energy?? Anyone can help me

[@GHILLIESARCADEANDMORE]

Cool

[@yeimereduardosilvagomez4798]

¿Puedo conectar un mux a otro mux para poderlo usar? ¿O los mux deben ir conectados únicamente al Arduino?

[@ELECTRONOOBS]

si puedes!

[@omsingharjit]

nyc

[@techbarron7383]

please make a video on how to make,wifi jammer using arduino or any module,circuits that can provide jamming👍

[@surenbono6063]

...is there anyway that a Solar Cell to be multiplex to isolate shaded panels..?... I can't find anyone test this yet.. currently they use a bypass diode (series) instead...can you demonstrate the yield of solar in multiplexed connection... research sake

[@mamamia980]

could this be used to make 64 button midi controller?

[@bagassetiawan1478]

make make remember evan kale channel, he already make it for his guitar. but somehow he missing and also his channel before i download his code.

[@mamamia980]

@@bagassetiawan1478 is it difficult to do?

[@kadyo2op64]

Waiting for another NRF24L01+ rc car

[@fench1234567]

Next level = use of TDM protocol in some form.

[@conorstewart2214]

2:10 on your note about where to skip to, it says skip to 00:00. People shouldn’t skip anyway but just pointing out your mistake. Great video though.

[@jumbo999614]

Is it the same as IC CD4051?

[@Enigma758]

No, that will handle analog signals in addition to digital, so it's not he same.

[@carlosmf6954]

👍

[@yakut9876]

well, the mechanical switch also considered digital.

[@knowthenew8834]

Give me Arduino uno code for digital clock signal

[@stefano.a]

It is called multiplexEr

[@jstro-hobbytech]

Great video. I have a bunch of them. Can they be be bit banged say for poling motion sensors. I get I couldn't cause an interrupt unless I read the sensor manually according to its address. Message me man I have something you might like to have. I bought it brand new and it might inspire a cool series of vids that not really anyone is doing and I know the topic is right up your alley, the item was by no means cheap and it has to do with digital music. I'm in Canada but I'd pay the post as a thanks for lack of patreon support for a while. I was going to post it on but you'd get to more viewers and we all live playing with opamps and such. Haha

[@user-lt9hh7ml2x]

Hi

[@risingmermo]

Wtf?! Are you a mindreader or something? I was about to do some research on multiplexers when I got the video nofitication.

[@alexybodom]

i just subscribed to your chanel and probably i have to unsubscribe soon because i hate when youtubers are holding and talking to the camera like you did 13-> onward and if a you tuber is telling me "im so exided guys(for you guys)" when i hear this i emidiatly leave the video so please dont do this kind of fake stuff you are providing exelent knolage in your videos but please, please don`t be like any other fake US youtuber i wish you good luck

[@rubybegonia2642]

You're in need of some serious help.

[@deepanshusonwane7398]

Bro when I needed this type of video the most you came in rescue 🥲

[@ShammoThePro]

Please make an autonomous car project

[@ShammoThePro]

Please make autonomous car