This guy teaches better than all of my teachers combined. And....... HE DOES IT FOR FREE!!!! While our teachers take a LOT of money.... Hats off to u sir
I mean, yes he is AMAZING, yet he don't do it for free... Paul McWhorter is well compensated and, just as much but not quite, a solid place to hang your hat. :)
These are the ONLY classes I've ever genuinely been sad in when I don't get homework assignments, Mr. McWhorter you truly are a wonder... Hello from a first year Aerospace Engineering student!
I'm a retired electronics engineer and computer programmer, but haven't worked in these fields for almost twenty years, and I'm just getting started with Arduino and Raspberry Pi. I'm very glad I found your channel as I'm appreciating your teaching style and the review of these concepts is very helpful since I'm a bit rusty.
First, I am a degreed (now retired) Electrical Engineer and as such understand the physical side of these lessons, but Paul is an excellent instructor and I think I can get my 11 year old grandson to understand Paul's tutorials. That said, several people have asked why the voltage measurements of this project are referenced to resistor R2 and not R1. The answer is that ALL measurements made by the Arduino input pins are relative to ground, i.e. GND. The R2 resistor is connected on the second pin to ground. So the value being measured is between the R1 and R2 connection (the potentiometer wiper) and ground (GND). Regardless of any circuit complexity to the input on an analog pin of the Arduino, the measured value will be from the input pin to ground. As a small gig to Paul, I would suggest that the scaling factor of 5.0/1023.0 be a defined constant such as float scale1Kto5V=5.0/1023.0; NEVER use hard coded numbers (grin)! I really am enjoying the ride with you Paul!
Hi Paul. Greetings from Scotland. I've been following these tutorials and just wanted to say briefly that your time and effort are much appreciated, especially during the European lockdown. I have learned so much from you these last few weeks. You have an excellent teaching style and really stand out from many TH-cam 'educators' who just lack that vital lively and involving element. For all of our sakes, please never stop!
One of life's beautiful blessings. To have a teacher like you. And if I missed a point, I can always rewind the video and understand it again. Makes me love electronics properly.
Hi Paul. Greetings from Sweden. I graduated from highschool in 1970 as an Engineer in Electonics and have been working as a Service Engineer since then. Repairing circuit boards and other hardware but no programming. I have a house full of components and tools and as a senior (72) lots of free time. When I discovered your channel I realized this was what I had been waiting for for may years. Of course I have bought myself an Elegoo Kit! I really enjoy your videos and watch several of them every day. Thank you for your excellent work! As it is now November I must admit I drink hot coffee, but no sugar, nothing but strong black coffee!
Love this new video set-up you have going on Paul. Making an already top notch set of tutorials even better and modern. Keep doing what you're doing because it really works!
Excellent videos! I stumbled across your channel a couple days ago and I can't stop watching them. You are an amazing teacher and all the positive comments attest to that fact. I'm sure you must do this because you enjoy it, but I still want to thank you so much for your clear and simple instruction.
I love your youtube content! I don't think that there is anything more noble than teaching. You should be proud of how many people you help. Thank you very much :)
Everytime a child uses a constant, her mother warns,"Dear dont use a constant always use a variable or else the NO NO guy will come." You literally scared me😂
NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO right
Thank you Paul. I have been trying to learn coding for the Arduino for a while now. The simplest of tasks to most were monumentus to me. I do suffer from some learning disabillities which have become slightly easier with age! I find your style and pace just right for me. I thank you Sir.
The way you're building a strong foundation using the balance of practical work, theory and analysis is great. I'm already starting to see the glimmers of how I will be able to realise the project ideas that are in my head. With your guidance, I know I'll get there. Thanks for another great lesson.
I like many others like your new studio and being able to see in detail the connections and the pins etc. one aspect of your teaching style I like is the inserted errors. As you know if you do not make mistakes you will never learn to trouble shoot your problems. It also serves as a great personal feedback technique to see if one is grasping the concepts. Keep up the great tutorials. I am having a blast learning this, I have a goal to use this to control my dust collection system in my wood shop. Sure I could copy cut and paste someone else’s sketch. And it might work fine. Me? I want to know why and how if it does or does not work. The hardware aspect is not new to me. It is the coding.
Great video on this lesson. I went further and added an LED to see the dim - brightness voltage, plus watching the voltage values on the serial screen.
Thank you Mr. McWhorter for taking time out of your day too provide this content. Im steadily working through these lessons and the way you teach this Arduino class really resonates with how i learn. Teaching a few examples of how to accomplish the same outcome of coding and the homework assignments for each lesson are extremely beneficial. A strong foundation is being built and its exciting...Thanks again👍
Paul, very well thought out video content. The comments this video sparked are priceless, and it completed the learning cycle, to get us (students) thinking!
Hello sir! I am an absolute beginner to electronics world and learning a lot from your videos. I am really thankful to you for your time and efforts to make these videos. Just a small question: why didn't you use pinMode in void setup in this video. Thanks!
Hi, I'm a beginner, too. I have the same question as you from two years ago. I skipped that pinMode setting, it works, too. I wonder if you have the answer to this question. Thank you!
I am also just following this series now and I think is because he used an analog Pin and not a digital Pin , I hope he will explain it in a later tutorial :)
Just like Mario, I just started following this series. I personally wrote it with pinMode = (whateverIntIsYourAwhichever, INPUT) at first and there was absolutely no difference to program if it was or wasn't written. It calculates voltage either way.
It is probably because all the pins are set as INPUT by default, but I'm not completely sure as I just started to learn Arduino and this is the best series of tutorials on TH-cam.
Another thing you should be wondering is how did he manage to make current flow through the potentiometer in the first place, he did not setup any pins at all ! My answer : I think 5V pin is always ready to supply I.e, only output mode so we don't need to define it And also same could be stated about analog pins like A2 which are configured to read by default hence no setup needed.
Hi, Paul. Thanks again for your tutorials. I enjoy the practical parts of the lessons and they are made more easy after you have carefully and comprehensively explained the why's and the wherefores of the circuits. I'm learning lots and will carry on following your video's.
I had some touble with my Pot but fortunatley I had a second one that worked. Then I went back and tested the first Pot with my meter and it seemed to work fine so I reinstalled it and after wiggling it in the board it began to perform properly. Electrical problems are commonly caused by corrosion, damage or a bad connection. If it doesn't work, take it apart and put it back together and it usually works. You just may not know why. Maybe some discussion about scientific notation would be helpful. I get the milliamps but the E-3 is not something we learned about in the 60's. Thanks Paul
HIs use of E-3 is a shorthand of "10 to the power of -3". 6.22x10^3 is 6220. The 3 just denotes how many places to move the decimal right or left (negative exponent). Scientific notation is always in the form 1.23 x10^n where 1.23 is the form of the number to two decimal places and n is the displacement of the decimal point. 1,230,000 is written as 1.23x10^7. 0.00345 is written as 3.24x10^-3. It's just a convention so all numbers are in the form X.XX with exponent n to indicate larger or smaller numbers.
Thank you Paul . This is a good lesson. I wonder why, in this tutorial, myVolvoPin A2 is not defined as INPUT in the void setup as in the tutorial 10. Now I know that it is optional to set the analog pin "INPUT" because analog pins are mostly used to read volt input from sensors.
I first tried it with pin A5 instead of A2, and I got erratic readings and turning the knob on the pot didn't change anything. Then I remembered that pinMode on A5 needed to be set to INPUT like you are saying, and it worked as expected. Then I read your comment that explained that the analog pins are used to read input from sensors, so I changed to pin A2, removed the pinMode from my code, and it worked again. I guess what I am trying to say, not having to declare the pinMode as INPUT doesn't apply when using pin A5... I will have to test the other analog pins to see how they react...
well now this is even stranger... after testing all the pins, it turns out that I can leave the pinMode undeclared on A5 just like the others... guess I didn't do something right the first time through...
Well spotted. Your comment made me curious and I had a quick Google. It may be because, when you run an analogRead instruction, an analog input pin is automatically set to be in input. So, you don't really need to set the pinMode in void setup if you're going to use the analog pin as an input. However, I suspect that most programmers would say you should set it anyway as it's good practice. If nothing else, it helps anyone reading the code to see what the pins are going to be used for in the void loop. I wonder if Paul left that out on purpose 🤔 to see if anyone spotted it?
Thanks for the training I listen to the first version a while ago, when i started with arduino. With this version I think I learn a bit more on components and programming. Just a question , On the program with the potentiometer you did not write down in " void setup () " the " pinMode" and it work ok . Can you give me some explanation. Excuse my english, it is not my first language. Good work, Thanks.
You only need to define a pinMode if you are wanting a pin to output a certain variable. In this case he is using a 5v constant and ground so there is no need for pinMode.
hello..!!!! Sir, may we know why "pinMode" was not used in the void Setup()..? cause in the previous tutorial it was used for the input pin, why the exclusion here.? Thank You!!
i think the reason is that the "analagin" can only be inputs and therefore it is not necessary to declare them as inputs. some examples that come with the elegoo do this as well, they'll list the A0-5 pin, but never declare them as inputs. i just checked his last lesson, and i think he declared as input more than anything to remind us of the pinMode function which will still need to use for pins 1-13. i'm also new to this, but is the most logical answer i could come up with.
Hey Mr McWhorter, it's Friday evening and I'm binge-watching your Arduino tutorials like it's better than the dance floor... because it IS better than the dance floor! Thanks so much for the great content, it's just AMAZING! God bless!
I loved this video. It was really interesting playing with the potentiometers and thinking about the thousands of applications it could have. Thank you very much!!!
One of these days, we’ll have people like Paul all over TH-cam able to teach us stuff in a few hours that college professors can’t teach in a year. And when that day comes I will be a very happy man.
I am getting back into Arduino after I took a break from it and this is the first lesson I did after a while and it was amazing, thank you Paul, your the best!
great teaching! I'm following it well. I failed maths at school but learning to apply it practically is how my mind works and your doing a great job. cheers J
Paul is the best of the best! I started with Arduino 6 months ago and stumble through many projects with a simple copy and paste method of coding but did not fully understand how I arrive at the end result. Now I get it! Thank you Paul! I added an LED to the potentiometer output and measured the voltage required to get the LED to first start to light up. Red LED's showed the lowest voltage reading at 1.55 volts and blue LED's showed the highest at 2.3 volts. Thanks again!
Excellent teacher. started this series a couple days ago. Thank you MR. McWhorter, I will send a donation, I have an invention idea, and I think your videos will take me there :)
Thank you! It was a little bit difficult to understand the potentiometer at the beginning, but by the end of the lesson it became clear. Thank you so much for the great lesson!
Hey Paul, jut wanted you to know that your videos are still helping people learn in 2023. Just go my kit yesterday (from your link, of course) and stayed up late going hands on with your vids.
This tutorial is absolutely amazing! Doing everything together and doing all the homework. From time to time have questions like "why can't we just instead of 5./1023. just write a constant value of it", but then I calculate it and go "oh. Oh. Ooooooooooooh". So yeah. Accurate math and physics calculations using formulas to the letter are super important.
Mate i love your tutorials! They are so interactive i feel like im in a classroom that motivates you to habe the know how to dp yohr own things. Please keep these videos up!! Definitely f Going to go through all of them!!
Another good video! Although I have worked with pots for decades, its always good to get some review, and to see how others explain how they work. We called them rheostats back in the early days and they consisted of a coil of wire for the resistor, and a wiper that moved across the coils making contact at different points Voltages and currents were quite a bit higher and would probably let the smoke out of modern film pots. Electrically, it is identical and only the mechanics are really different. Thank you again for the video and I look forward to the next.
Great tutorial Paul! You are a great teacher. I really like how you don't just show us how to do it, you explain why its done that way! "Give a man a fish, he eats for a day- Teach a man to fish, he eats for a lifetime"
I'm actually following all the lesson and doing all the assignments and I'm learning so much so fast. I just wanted to thank you for all the work and effort you're putting in all these tutorials.
Very well explained. I love your passion to teach with patience and in such detail. As good programming practice you should introduce and use the const keyword. Great work.
Been about two months now since I completed the last one, I really struggled to motivate myself but as always it was really fun and loved the practical side of using the potentiometer. Have been doing my MSc in Comp Sci as well as learning Swedish on the state provided course (SFI), so I've been quite busy!
i loved this leasson. i could see what ive learned, cause i was always ahead of Paul, with the programing. then it seemed my potentiometer was broken, cause i only got 0 or 5 volt reading. but then i changed the wires and it worked :)
I am a Chinese student using VPN to watch your video, you are the best teacher I have ever met！
Doesn't that lower your social credit score with the CCP? lol
@@bsmusic2601 lmfao
NOOO! We have to use variables and BOOM! always make me smile. You're great Mr. Mcwhorter 😁
I agree
Same with me!
Here here
he's the best teacher
This guy teaches better than all of my teachers combined. And....... HE DOES IT FOR FREE!!!!
While our teachers take a LOT of money.... Hats off to u sir
I mean, yes he is AMAZING, yet he don't do it for free... Paul McWhorter is well compensated and, just as much but not quite, a solid place to hang your hat. :)
@@LolrSk8rXD
At least he does not charge US for those precious classes like the professors at schools/universities.
These are the ONLY classes I've ever genuinely been sad in when I don't get homework assignments, Mr. McWhorter you truly are a wonder... Hello from a first year Aerospace Engineering student!
I'm a retired electronics engineer and computer programmer, but haven't worked in these fields for almost twenty years, and I'm just getting started with Arduino and Raspberry Pi. I'm very glad I found your channel as I'm appreciating your teaching style and the review of these concepts is very helpful since I'm a bit rusty.
Paul McWhorter: The coolest and greatest old man alive.
Give this guy a mug of ice cold coffee and BAMMM!!!
And he'll be even cooler with that cup of ice coffe
Hey, he does not get old. He gets wiser!
First, I am a degreed (now retired) Electrical Engineer and as such understand the physical side of these lessons, but Paul is an excellent instructor and I think I can get my 11 year old grandson to understand Paul's tutorials. That said, several people have asked why the voltage measurements of this project are referenced to resistor R2 and not R1. The answer is that ALL measurements made by the Arduino input pins are relative to ground, i.e. GND. The R2 resistor is connected on the second pin to ground. So the value being measured is between the R1 and R2 connection (the potentiometer wiper) and ground (GND). Regardless of any circuit complexity to the input on an analog pin of the Arduino, the measured value will be from the input pin to ground.
As a small gig to Paul, I would suggest that the scaling factor of 5.0/1023.0 be a defined constant such as
float scale1Kto5V=5.0/1023.0;
NEVER use hard coded numbers (grin)!
I really am enjoying the ride with you Paul!
Hi Paul. Greetings from Scotland. I've been following these tutorials and just wanted to say briefly that your time and effort are much appreciated, especially during the European lockdown. I have learned so much from you these last few weeks. You have an excellent teaching style and really stand out from many TH-cam 'educators' who just lack that vital lively and involving element.
For all of our sakes, please never stop!
couldn't say it better myself, stay safe guys~from America
Absolutely right
right
One of life's beautiful blessings. To have a teacher like you. And if I missed a point, I can always rewind the video and understand it again. Makes me love electronics properly.
You put it in words from God. I can't fathom such wisdom and I am not kidding.
Thank you very much Paul, as a 15 year old who is really interested in electronics, this channel is my new gold mine.
Hi Paul. Greetings from Sweden. I graduated from highschool in 1970 as an Engineer in Electonics and have been working as a Service Engineer since then. Repairing circuit boards and other hardware but no programming. I have a house full of components and tools and as a senior (72) lots of free time. When I discovered your channel I realized this was what I had been waiting for for may years. Of course I have bought myself an Elegoo Kit! I really enjoy your videos and watch several of them every day. Thank you for your excellent work! As it is now November I must admit I drink hot coffee, but no sugar, nothing but strong black coffee!
Love this new video set-up you have going on Paul. Making an already top notch set of tutorials even better and modern. Keep doing what you're doing because it really works!
Excellent videos! I stumbled across your channel a couple days ago and I can't stop watching them. You are an amazing teacher and all the positive comments attest to that fact. I'm sure you must do this because you enjoy it, but I still want to thank you so much for your clear and simple instruction.
I love your youtube content!
I don't think that there is anything more noble than teaching. You should be proud of how many people you help. Thank you very much :)
I was out of town for a few days due to work...glad to be back and I'm glad to be back on track with tutorials.
Hey Paul - another fantastic and well explained tutorial - loving learning the Arduino!
Everytime a child uses a constant, her mother warns,"Dear dont use a constant always use a variable or else the NO NO guy will come."
You literally scared me😂
NOOOOO NOOOOOOOOOOOOOOOOOOOO
NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO right
22:25
Thank you Paul. I have been trying to learn coding for the Arduino for a while now. The simplest of tasks to most were monumentus to me. I do suffer from some learning disabillities which have become slightly easier with age! I find your style and pace just right for me. I thank you Sir.
I never thought I could have so much joy just turning a potentiometer and seeing the read out!!!!!!
It is the small things in life that make it wonderful, right?
The way you're building a strong foundation using the balance of practical work, theory and analysis is great. I'm already starting to see the glimmers of how I will be able to realise the project ideas that are in my head. With your guidance, I know I'll get there. Thanks for another great lesson.
I like many others like your new studio and being able to see in detail the connections and the pins etc. one aspect of your teaching style I like is the inserted errors. As you know if you do not make mistakes you will never learn to trouble shoot your problems.
It also serves as a great personal feedback technique to see if one is grasping the concepts.
Keep up the great tutorials.
I am having a blast learning this, I have a goal to use this to control my dust collection system in my wood shop. Sure I could copy cut and paste someone else’s sketch. And it might work fine. Me? I want to know why and how if it does or does not work.
The hardware aspect is not new to me. It is the coding.
hey did you made your own dust collection system?? I am just started to learn these stuffs
Great video on this lesson. I went further and added an LED to see the dim - brightness voltage, plus watching the voltage values on the serial screen.
Bill Crow: I did too. Plus I added yet another potentiometer. 🇸🇪
Thank you Mr. McWhorter for taking time out of your day too provide this content. Im steadily working through these lessons and the way you teach this Arduino class really resonates with how i learn. Teaching a few examples of how to accomplish the same outcome of coding and the homework assignments for each lesson are extremely beneficial. A strong foundation is being built and its exciting...Thanks again👍
Paul, very well thought out video content. The comments this video sparked are priceless, and it completed the learning cycle, to get us (students) thinking!
Hello sir! I am an absolute beginner to electronics world and learning a lot from your videos. I am really thankful to you for your time and efforts to make these videos.
Just a small question: why didn't you use pinMode in void setup in this video.
Thanks!
Hi, I'm a beginner, too. I have the same question as you from two years ago. I skipped that pinMode setting, it works, too. I wonder if you have the answer to this question. Thank you!
same question
Why was the analog A2 Pin in this lesson not setup as OUTPUT or INPUT with a pinMode function?
I am also just following this series now and
I think is because he used an analog Pin and not a digital Pin , I hope he will explain it in a later tutorial :)
Just like Mario, I just started following this series.
I personally wrote it with pinMode = (whateverIntIsYourAwhichever, INPUT) at first and there was absolutely no difference to program if it was or wasn't written. It calculates voltage either way.
Somebody answered this in a response to a previous comment. Alwasy look for the ansewr before asking the question 😉
It is probably because all the pins are set as INPUT by default, but I'm not completely sure as I just started to learn Arduino and this is the best series of tutorials on TH-cam.
Another thing you should be wondering is how did he manage to make current flow through the potentiometer in the first place, he did not setup any pins at all !
My answer : I think 5V pin is always ready to supply I.e, only output mode so we don't need to define it
And also same could be stated about analog pins like A2 which are configured to read by default hence no setup needed.
Hi, Paul. Thanks again for your tutorials. I enjoy the practical parts of the lessons and they are made more easy after you have carefully and comprehensively explained the why's and the wherefores of the circuits. I'm learning lots and will carry on following your video's.
Hi Paul, thanks for this new series. I found your fusion 360 series extremely helpful and look forward to watching this one.
I had some touble with my Pot but fortunatley I had a second one that worked. Then I went back and tested the first Pot with my meter and it seemed to work fine so I reinstalled it and after wiggling it in the board it began to perform properly. Electrical problems are commonly caused by corrosion, damage or a bad connection. If it doesn't work, take it apart and put it back together and it usually works. You just may not know why.
Maybe some discussion about scientific notation would be helpful. I get the milliamps but the E-3 is not something we learned about in the 60's.
Thanks Paul
A shame you weren't able to learn scientific notation in the 60s. I learned about it in the 50s, in high school.
HIs use of E-3 is a shorthand of "10 to the power of -3". 6.22x10^3 is 6220.
The 3 just denotes how many places to move the decimal right or left (negative exponent).
Scientific notation is always in the form 1.23 x10^n where 1.23 is the form of the number to two decimal places and n is the displacement of the decimal point.
1,230,000 is written as 1.23x10^7.
0.00345 is written as 3.24x10^-3.
It's just a convention so all numbers are in the form X.XX with exponent n to indicate larger or smaller numbers.
Thank you Paul . This is a good lesson. I wonder why, in this tutorial, myVolvoPin A2 is not defined as INPUT in the void setup as in the tutorial 10. Now I know that it is optional to set the analog pin "INPUT" because analog pins are mostly used to read volt input from sensors.
I first tried it with pin A5 instead of A2, and I got erratic readings and turning the knob on the pot didn't change anything. Then I remembered that pinMode on A5 needed to be set to INPUT like you are saying, and it worked as expected. Then I read your comment that explained that the analog pins are used to read input from sensors, so I changed to pin A2, removed the pinMode from my code, and it worked again. I guess what I am trying to say, not having to declare the pinMode as INPUT doesn't apply when using pin A5... I will have to test the other analog pins to see how they react...
well now this is even stranger... after testing all the pins, it turns out that I can leave the pinMode undeclared on A5 just like the others... guess I didn't do something right the first time through...
@@tedparker640 I had the same question @Jimmy. Checked out the Arduino manual and found that A0 to A5 are only Input pins
@@stanalvares6888 You mean they work as input pins by default without declaring them in the code ?
This guy is a legend. Always will be for teaching us helpful stuff during these situations! Stay safe, and stay awesome!
Thanks a lot Paul for putting out these series, doing a lesson every day. I absolutely love it. Greetings from the Netherlands.👋
You didn't write the command "pinMode( myVoltPin , INPUT );" in setup, but still the program worked perfectly. How?
Was gonna ask the same thing!
Well spotted. Your comment made me curious and I had a quick Google. It may be because, when you run an analogRead instruction, an analog input pin is automatically set to be in input. So, you don't really need to set the pinMode in void setup if you're going to use the analog pin as an input. However, I suspect that most programmers would say you should set it anyway as it's good practice. If nothing else, it helps anyone reading the code to see what the pins are going to be used for in the void loop.
I wonder if Paul left that out on purpose 🤔 to see if anyone spotted it?
I noticed this too. I kept waiting for him to say "NOOOOOOO! NOOOOOOOO!" and then add it, but he never did.
Thanks for the training I listen to the first version a while ago, when i started with arduino. With this version I think I learn a bit more on components and programming. Just a question , On the program with the potentiometer you did not write down in " void setup () " the " pinMode" and it work ok . Can you give me some explanation. Excuse my english, it is not my first language. Good work, Thanks.
You only need to define a pinMode if you are wanting a pin to output a certain variable. In this case he is using a 5v constant and ground so there is no need for pinMode.
@@mudrunner1 thanks for your explanation
Thank you Mr. McWhorter for sharing such valuable knowledge with anyone who seeks it.
I know it's a year later, but found your videos and going through the series now. Good stuff!
Why didn't we use the code "pinMode(A2,INPUT)" in the void setup
we are not doing anything with the pin at this point...just monitoring it.
@@danbishop4035 in tutorial 10 also we were monitoring. Could u elaborate
because we not need using defined (INPUT) in input analog port
@sukaran gulati Look at the previous tutorials like 9 and 10. He's explaining it very well.
i think it's optional. i used it for my code to see if any compilation error would pop up but it still worked normally
hello..!!!!
Sir, may we know why "pinMode" was not used in the void Setup()..? cause in the previous tutorial it was used for the input pin, why the exclusion here.?
Thank You!!
i think the reason is that the "analagin" can only be inputs and therefore it is not necessary to declare them as inputs. some examples that come with the elegoo do this as well, they'll list the A0-5 pin, but never declare them as inputs. i just checked his last lesson, and i think he declared as input more than anything to remind us of the pinMode function which will still need to use for pins 1-13. i'm also new to this, but is the most logical answer i could come up with.
Lovely lesson. I have been watching your lessons for a few years now.
Hey Mr McWhorter, it's Friday evening and I'm binge-watching your Arduino tutorials like it's better than the dance floor... because it IS better than the dance floor! Thanks so much for the great content, it's just AMAZING! God bless!
I loved this video. It was really interesting playing with the potentiometers and thinking about the thousands of applications it could have. Thank you very much!!!
Thanks for the most straightforward and understandable explanation of the inner workings of a potentiometer. Now I finally know how they work! BOOM!
A most excellent teacher, thank you so much for doing these videos! awesome kit too!
One of these days, we’ll have people like Paul all over TH-cam able to teach us stuff in a few hours that college professors can’t teach in a year. And when that day comes I will be a very happy man.
Hi Paul, I'm watching this from Sweden and I think you are doing a great job because I understand most of it and get it to work. Thank You!
You re an excellent teachear and you make great videos . Please dont stop to illuminate us with your knowledge .God bless you , greetings from Greece.
I am 12 years old learning arduino. Couldn't have been possible without this guy.
Same
I am getting back into Arduino after I took a break from it and this is the first lesson I did after a while and it was amazing, thank you Paul, your the best!
Thank you Paul. Amazing lesson yet again. I agree keep it simple as people learn on the cheap components.
You seem to enjoy the term "most excellent". You Sir are a most excellent instructor. Thank you.
The video started just like it ended, with good information, and good iced coffee. Thanks for the videos!
Thank you so much for the lessons and the coffee addiction. Both are really helping me out through the day
great teaching! I'm following it well. I failed maths at school but learning to apply it practically is how my mind works and your doing a great job. cheers J
Thanks for the tutorial, Paul. Much appreciated.
Thank you - such clear explanations. I'm beginning to understand!
Paul is the best of the best! I started with Arduino 6 months ago and stumble through many projects with a simple copy and paste method of coding but did not fully understand how I arrive at the end result.
Now I get it! Thank you Paul!
I added an LED to the potentiometer output and measured the voltage required to get the LED to first start to light up. Red LED's showed the lowest voltage reading at 1.55 volts and blue LED's showed the highest at 2.3 volts. Thanks again!
Great lesson! I have a little different potentiometer but it still worked! Seeing voltage from monitor port is so fascinating
These Lessons are most excellent! Thoroughly enjoying them :)
Thank you Paul. Loved the lesson. Love your style of delivery.
Really enjoyed . A throughout and detailed demo. And learned some science as well and hope you will do a video on scientific terms and notation.
Thank you again. I have never heard of a potentiometer before today. God bless you for what you are doing/have done for me!
Excellent teacher. started this series a couple days ago. Thank you MR. McWhorter, I will send a donation, I have an invention idea, and I think your videos will take me there :)
Thank you! It was a little bit difficult to understand the potentiometer at the beginning, but by the end of the lesson it became clear. Thank you so much for the great lesson!
Thx alot for your amazing efforts.
I really got benefit by your lessons.
Paul, Wow! So clear explanation on how potentiometer. really thanks! Manny from Puerto Rico
Your lessons were so well explained, I could build the circuit before watching you do it.
Thank you for your amazing work.
I'm loving these tutorials, they're so helpful -- thank you so much!!!
Almost 2 years later and this content is still gold. Thank you professor!
You're very welcome!
Hey Paul, jut wanted you to know that your videos are still helping people learn in 2023. Just go my kit yesterday (from your link, of course) and stayed up late going hands on with your vids.
fantastic tutorials. you make learning arduino easy thanks for all your hard work paul :)
Big Howya from Ireland! Loving these tutorials, hated circuit theory during my undergrad, it's all making sense now. Cheers Paul!
Thank you soo much paul it was a really cool and enjoyable lesson
loving the series so far, Paul this is great for someone who knows nothing about the electric world
Thank you for taking the time to make such wonderful videos.
This tutorial is absolutely amazing! Doing everything together and doing all the homework.
From time to time have questions like "why can't we just instead of 5./1023. just write a constant value of it", but then I calculate it and go "oh. Oh. Ooooooooooooh". So yeah. Accurate math and physics calculations using formulas to the letter are super important.
Mate i love your tutorials! They are so interactive i feel like im in a classroom that motivates you to habe the know how to dp yohr own things. Please keep these videos up!! Definitely f
Going to go through all of them!!
Thank you for this series and you studio is quite nice....much better than before. By the way thank you for explaining a potentiometer.
Another good video! Although I have worked with pots for decades, its always good to get some review, and to see how others explain how they work. We called them rheostats back in the early days and they consisted of a coil of wire for the resistor, and a wiper that moved across the coils making contact at different points Voltages and currents were quite a bit higher and would probably let the smoke out of modern film pots. Electrically, it is identical and only the mechanics are really different. Thank you again for the video and I look forward to the next.
Great tutorial Paul! You are a great teacher. I really like how you don't just show us how to do it, you explain why its done that way! "Give a man a fish, he eats for a day- Teach a man to fish, he eats for a lifetime"
I'm actually following all the lesson and doing all the assignments and I'm learning so much so fast.
I just wanted to thank you for all the work and effort you're putting in all these tutorials.
Great job!
Thank you for sharing these courses!!
Very well explained. I love your passion to teach with patience and in such detail. As good programming practice you should introduce and use the const keyword. Great work.
Been about two months now since I completed the last one, I really struggled to motivate myself but as always it was really fun and loved the practical side of using the potentiometer. Have been doing my MSc in Comp Sci as well as learning Swedish on the state provided course (SFI), so I've been quite busy!
I new absolutely nothing on potentialmeters but am now ok with them thanks alot paul
Yes. I think most of us are listening all the way to the end. Excellent!
Really enjoyed this lesson Paul, thanks
I wonder why I didn't see him a couple of years back! Sure, Mr. Paul McWhorter is the best teacher I have ever come across.
I really enjoy your classes and i am doing well thanks alot paul
started episode 1 last night.. cant stop.
Excellent explanations in every one of your lessons, congratulatios.
Hi Paul. Enjoy your tutorials, well explained. Would appreciate you doing a video on Scientific notations.Thanks
Love From India .Sir ,u are simply superb and a great teacher . Thank you so much for this free course
You are the MOST unapologetic, forever minded, individual I've ever come in contact with!.... That's a great thing :)))
Paul, I really enjoy all your classes. You are so thorough and fun to listen to. I am having a blast!
Wonderful!
Thank you, Paul! I really like this video!
Hot coffee for me today. We've got a bunch of snow. Perfect day to get the Arduino out and learn.
i loved this leasson. i could see what ive learned, cause i was always ahead of Paul, with the programing.
then it seemed my potentiometer was broken, cause i only got 0 or 5 volt reading. but then i changed the wires and it worked :)
thank you for all your tutorials you are a great teacher
Thanks found how to use decimals with pot...I shouted BOOM aloud when it got working!
I just wanted to thank you for making theses videos