Using Servo Motors with Arduino
ฝัง
- เผยแพร่เมื่อ 5 พ.ค. 2024
- Learn to use Servo Motors with an Arduino. Directly, and with a PCA9685 I2C Servo Driver.
Accompanying article with code: dronebotworkshop.com/servo-mo...
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Today we’ll be making things move with Servo Motors!
Analog servo motors are inexpensive little powerhouses that can be perfect when you're designing something that needs to move. They pack a lot of torque for their size and their shaft position can be pretty accurately controlled.
We will start out by taking a look at how analog servo motors work and what kind of signal we’ll need to control them. We will also learn how to read the specs so that we can choose the best servo motor for our application.
There are two types of servo motors we will look at - conventional servos that rotate 180 or 270 degrees and continuous rotation servo motors.
Then it's time for the experiments. We will use a couple of the example sketches written for the Arduino Servo library to show just how easy it is to control a servo motor with an Arduino.
We will also examine a method of controlling LOTS of servo motors, the PCA9685 16-channel PWM controller board. As its name would imply this board lets you control 16 devices like servo motors and it interfaces to your Arduino or Raspberry Pi using the versatile I2C bus.
And if 16 servos still isn’t enough you can cascade up to 62 of these boards to drive an unimaginable 992 servo motors with just one Arduino!
I’ll settle for a more reasonable 4 servo motors, the 4 servo motors in the MeArm that I built in an earlier video. I’ll show you how to build a controller for the MeArm using an Arduino Uno and a PCA9685 board.
Here is the Table of Contents for this video:
00:00 - Introduction
02:14 - Servo Motor Basics
07:26 - Understanding Servo Specifications
09:25 - Servo Tester Demo
14:09 - Arduino Sweep Sketch
18:56 - Arduino Knob Sketch
25:12 - The PCA9685
30:05 - MeArm Controller
As always you'll find a detailed article on the DroneBot Workshop Website at dbot.ws/servo. It includes the sketches we cover in the video in an easy to download ZIP file as well as detailed explanations and links to other useful resources.
And speaking of useful resources please sign up for the DroneBot Workshop newsletter..
I hope you enjoy the video, and if you haven’t already please subscribe to the TH-cam channel. - แนวปฏิบัติและการใช้ชีวิต
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This was unlike anything I've seen on TH-cam. Came for a refresher on arduino servo control and got SO much more! Content like this has the potential to replace the university system. Will be watching more of your videos and encouraging others to watch. Well done sir.
Very useful. Thank you!
The majority of educational content is capable of replacing the universities. Hell some places flat out show you youtube videos as part of the class. Only difference is you're paying for it :)
@@VioFax superior intellegence?
Lol so funny
I’am 74 & can listen & learn from you 24 hrs a day & learn & it sinks in i was a commercial mechanical engineer for year , never got involved with electronics which is my hobby know some people you listen to it goes right over your head. You are good thank you Norman.
This guy makes the most comprehensive tutorial ever! He even explained each line of the code! I have learned a lot, thank you so much!
I don’t normally comment on videos but this time I’ll make an exception. Your presentation style is spot on. Clear and calm. You also don’t do what every other educational video does and expect the viewer to know everything. Usually watching an educational video just starts a long process of watching other videos to understand what is happening in the original. Thank you very much!
Another example of an absolutely brilliant and concise presentation of exactly the information people need to understand the topic. I appreciate not only the obvious work you put in to researching the broad variety of possible applications, but also the visual aid presentation and video editing necessary to bring it all together. Keep this up and your library of videos is destined to become the be-all and end-all of youtube workshop references.
I haven't seen the full video yet, but I really appreciate what you're doing. Your style of teaching is very clear, calm and easy to follow.
I totally agree!
I was literally just thinking, “this guy gets it, he’s not talking like i already know what he’s saying”. This is a huge problem when it comes to more advanced stuff. The youtubers always over-estimate how smart i am😂
@@AlvaroLuizTrentini his tutorials are horrible and leave ouit many critical steps, there is not even any servo category in y IDE under examples at all he also forgot to tell yout o set the board in board manager and the comport first
This is really high quality stuff! I really enjoy watching these videos. I liked seeing how you used the oscilloscope to show PMW. I "got it" without that, but it really hammered home what is happening there.
I honestly appreciate your work in these videos. This is the best channel in it's category I've ever come across!
Another excellent video. Once again I know have an idea for servo's and the courage to have a go! I have no idea how you do it but I learn more in 45 mins watching your video than I do with hours of researching myself. Keep up the good work! Right, now to subscribe to the newsletter.
Thanks so much for this very very good tutorial. I knew nothing about how these servos worked and now I'm on my way to starting my first project with them. :-)
Very thorough. I really appreciate you explaining everything in the code instead of breezing over it like most do.
I love the calm approach too. Some people suffer from a slow curve. The speed of presentation is just right.
Thanks sir for another great, extremely clear and friendly lesson/demo on servo motors for Arduino. You are the best!
I have always believed that young people are the best to explain sth to me till I saw your channel & realized why experience really matters...
You are the best ever...
I am 90% into a DIY Eggbot. The servo that lifts the pen is kicking my butt. The video is comprehensive and I have to say the graphics are very polished. Thank you for sharing your knowledge. Thank the people that help you produce this content as well.
Using this video to help with a final year project in university. Thanks for taking the time to make this video very clear and concise, it has been a massive help! :)
Great presentation! I'm a retired EE 10 years of Arduino experience. I've seen these RC type servos before but never used one. My experince have been with larger DC motors. I'm currently working on an Arduino based cuckoo clock, these will work great thanks.
I started watching this video at two times speed but then I needed to slow it down. But after listening at two times speed I can now only tolerate watching this video at 1.5 speed. Great video very informative and through!
By far one of the very best electronics teachers out there. Clear and concise without any ‘greater than though’ attitude. I beg anyone interested in electronics to subscribe and support this incredible resource.
i was searching for a channel like this where arduino is taught comprehensively...found it 2 years late but glad i found it ......will surely learn a lot from you sir.
I've watched several of your videos. Very easy to follow and good information for students of all ages and levels! Thanks for sharing!
One of the best video lectures I have seen. The explanation is very clear and structured. The graphics part is very well done. Both the hardware part and the code part are explained very clearly. Thank you very much Sir!
Nice introduction. For others, in his initial code at 17:00, there's no need to "sweep" each degree. You could simply write 0 to the servo, wait a bit, then write 180, wait a bit, and loop back to 0. 3 or 4 lines of code.
Very well presented!
I'm only getting started learning the syntax of Arduino and your clear step by step explanation of the sketch really helps me wrap my noggin around coding. Please make more videos especially with the aforementioned step by step walk through of the code.
By way of request, I'd love to see a video on coding for a 3 axis CNC platform.
Thank you! Subscribed!
Incredible how helpful this video is. Needed a refresher on servos, building a remake of the the classic board game “Dark Tower” which featured a tower with an electronic spinning window
Thank you for the positive message that you transmit with your videos along!
I have not seen such a comprehensive , data rich, lucid and informative video tutorial before. I would like to thank you very much for your effort from the bottom of my heart. At the end of the tutorial you feel amazed at what you have learnt from scratch. I would like to know the details about constructing the robotic arm that you used to demonstrate the working of PCA9685. I am an Electrical Engineer and have interest in Arduino Projects, which i keep doing for my kids school projects. Thank you once again.
Thank you for posting these knowledge videos! Hobbying into electronics in my spare time outside of my busy work life.
Subscribed. One of the clearest and most thorough presentations!
This is excellent, jumping in for hobby and work and loving this already!
I am very grateful to you for your lessons, especially for your excellent clear and distinct English
I was wondering how people controlled more then a few servos from and Arduino. Thank you as always for your classes. If I were still an instructor, your classes would be mandatory watching for my class. :)
I like your clear explanations of the workings of the hobby servo. Very impressed by your workbench that is shown in the background. Would like a write up on it.
I found you a few months ago and absolutely love your channel! Thank you for putting all the time and energy into your videos, I know it is time consuming. I am looking forward to putting all this knowledge into use sometime soon! Thanks again and please keep up the most excellent work! Are you an instructor by chance?
I have recently discovered your channel. Absolutely brilliant! Very educational! You deserve a lot more subscribers. Cheers
Thank you very much for this video. You are a very good teacher. Your explanations are clear and concise, you take us step by step, explaining as you go both verbally and visually. I knew nothing about servos beforehand, except for the word. Now I have a head full of ideas. It is the same with your other videos. Thumbs up (using my native liveware servo) and subscribed. I enjoyed your dry joke at 27:44
Another great tutorial Bill! You certainly have a great aptitude for teaching.
Hi Bill,
I've just got around to watching your Servo video - another educational great. Thank you so much for posting this. It will have saved me alone many days of frustrating research and messing about.
greetings from morocco sir.....im not an engineering student and still can understund you well...thanks to your exeptional style of teaching
This tutorial about servomotor was the best that I've ever seen
I was not ready to try servo with PCA9685 (since datasheet says it is for LEDs) till i saw this, great tutorial. I am going to watch all of your videos now :)
Have not watched the full video as yet but its great so far, you teach clearly. Thank you sir for making these videos.. You have a new sub
As a beginner, I can say this is the best channel which offers such clearity for doing things
brilliant video! thank you for the clear and calm workthrough of this
Cool video thank you. I would love a short video of your workbench/shop. It look so organized and neat. If you could tell us how you made it, what you've built into it (I see a really convenient power and connection panel) and the rest. Thanks.
Great video, very clear. Thank you very much for speaking slowly and clearly, it is really appreciated for not native English speakers.
Hey.. I watched the full video and liked it very much, as I always. I always look forward to watch your new videos on such hard core technologies.
Awesome work and explanation. Definitely made it clear what a servo is and how to use multiple servos with the servo motor controller.
This was incredibly helpful. Thank you
The best electronics tutorial video I have seen. Keep up the good work.
Awesome presentation and describes everything to the last detail in a very pleasant way to understand, GREAT JOB
Very informative and easy follow video. I'm starting to learn Arduino and build a small robotic arm with 4 servos and was unable to find out how to control servos before I came across your video. Thanks for sharing your knowledge, its great for my learning.
Top notch instruction. Thank you for sharing.
I´m a beginner and I´ll create an "Useless Box". Your videos help me to do it - and I´m so thankful that I subscribed your channel.
Another great presentation... thank you for passing on your knowledge.
Love your video dynamic connections to the hardware. Wish I knew how you do it as it is so cool.
Thank you for sharing your knowledge. Very appreciated!
I liked the video before watching it, I was waiting for your new videos, your channel is the best I ever seen, thank you so much :)
i second that
Thank you for pointing out the wisdom t using a separate power supply for the motor and the controller. That’s a point that is sometimes overlooked. And for the solution of a capacitor in the power line to the motor where the only one power supply for both motor and controller is required.
Excellent - from start to end. Thank you!
Thank you so much, not just for this but for all the videos you made. Every time I start working on a project I start with some crappy 3 minute video an get stuck at some point. Then I watch one of your videos and the problems go away because your videos include all the necessary informations.
Happy new year! Keep up the excellent work! Greetings from Germany :)
So glad to hear that you find my videos useful, thank you so much!
This video is just what I needed to give me a head start on my DCS A10 sim pit. I am using servo motors to replicated gauge movements in the software and there are over 30 instruments in total. It would have been a nightmare to individually wire each and every servo . Now I can install the servo board on the dash and only have to wire the communication lines to it. Thanks so much!@
VEEEERYYYY! GOOOOOD! all your videos, thank very much. You are done a great job. congratulations. Saludos desde México
Thank you so much for making this, this is exactly what a rusty beginner like me needs. Seriously, thank you
Great video! Answered every question I had and several I didn't know I needed. Appreciate it!
Thank you so much for your clear and relaxed explanations, now i really start to understand how it all works,
thank you for explaining servo motor I learned many things after watched this video
Thanks very much for creating comprehensive high class tutorials.
thank you for the video
I was wondering what your thoughts would be using a servo as remote starter for a pinewood derby track
Very clear, thank you for your explanations, I learned a lot. I'm not used to use servo motors, but I will try the MG 996R servo I received.
Nice video, thank you for taking the time to put together a complete informative video. I learned lots!
First half was pretty basic and explained in depth, second half was a big step up, really liked it :)
Thanks very much for you very informative training, also highly recommend the stepper training!
This is a masterpiece of education! Fantastic work demystifying servo motors!!!! Thank you so much!!!
Great job of explaining the subject.
in a pinch you can turn a standard 180 degree servo into a continuous 360. takes a few minutes just glue the potentiometer and remove any mechanical stops. there's some good TH-cam tutorials on it.
really helped in my project. I needed to drive a gear system and 360 servos weren't compatible with the RC plane receiver I was using to control the servos. (9 gram micro servos)
thank you very much once again.
I learn many things with your tutorials.
Clear, well explained and equipped with very useful practical schemes.
Just one thing I do not know yet: how to change I2C address: I imagine closing pads in the upper right corner but how do they manage then in the Arduino?
I can not remember if you have done other tutorials on i2c and how to change its adresses.
I will hardly use more than one PCA9685 but if I wanted to add a display with i2c bus?
Do I remember well that Arduino only has an I2C line?
Thanks a lot again
At 40:58 you say "I hope you learned something about server motors". You gotta be kidding, I've learned A LOT, I mean, really, A LOT. I'm very thankful for your video. You are the best.
Thank you for this video! Very great explanations, easy easy to watch and understand!
Your videos are fantastic. Extremely well explained and demonstrated. You should be a teacher. This will help me in my Lost In Space Robot build I am trying to control with Arduino.
Do you have a background as a teacher? Your teaching style is absolutely fantastic.
As a beginner I learnt a lot from ur teaching and I am planing to do a project on 4 legged mini robot so plss do come up with more videos or tutorials so that beginners can learn easily...... Very good teaching👏
Top quality presentation.
Great video! Exactly the info that I needed. Thanks!
Thanks for video, this is the first video i've found that is close to one I need, I am building a Model railway and want to use Arduino and Servos to change point, this one I may just be able to work out the Sketch for using Push buttons or Toggle switches to switch points, would be great if you get chance to do a video, need to move servos about 60 deg and probably use 2 PCA9685 boards so may have to use a Mega to get enough inputs.
Thanks great video ,very concise. Keep up the good work, cheers!
Saw 2 Videos from you... So far really intetesting!
Thanks for this awesome explanations!
Thank you very much. This really helps me fully understand servos
thank you sir you clear my concepts about servo and code of arduino really appreciate what you are doing for us love it i am student of university and this video your teaching style is great thanks again.
Incredible servo introduction video. Thankyou so much! Subscribed!
This is brilliant and has been amazingly helpful towards my first project thank you! I have successfully got this working with the 3 servos I currently have (360 degree MG996R) "but" I am wondering if there is anyway to slow the maximum rotation down through code, or if I need to restrict the movement of the potentiometer itself?
Excellent presentation......
So calmly provide the clarity, great.
this the most detailed Servo motor video out there, which also explains what each pin to beginners like me. thank you so much.
1. would it possible for you to make a video of how to control multiple servos at once rather than running one at a time using PCA9685?
2. Also how to mod this same servo for 360-degree rotation so we can control using PCA9685
Your videos are very very well done. I learn so much every time.
Thank you very much for your video. Your teaching style is very easy to understand.
Lovely learning video. Just getting into servos. I will keep watching thisuntill i set mine up to the arduino
Subbed because of the super clean workshop setup you got there
Great video, thanks for it. I have a (maybe) dummy question. Is it recommended to use same external power for both: Arduino and a motor? (with some split cable). Reason: on final project I don't want to have two separate power sources if possible. Or maybe connect power directly to a motor and to Arduino 5V over MB102 power supply module.
DUDE YOU SOLVED A LOT OF PROBLE I GET DRING SERVOPROJECTS THANKS SIR REALLY