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28BYJ-48 Stepper Motor and ULN2003 Driver Intro

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UPDATE! I finally have a follow up video on how to drive this motor with an Arduino! Check it out at aka.ms/28BYJArd...
The sample code from my Arduino video is here:
aka.ms/28byjrepo
This video gives a detailed introduction to the common 28BYJ-48 stepper motor, and the ULN2003 Darlington Array driver board. You can use the info from this video to drive the stepper motor with most any microcontroller.
Stay tuned for follow up videos on driving the motor with the Arduino, Raspberry Pi, and possibly others. Meanwhile here are some other great resources:
Graham Wideman's excellent "Motors- 28BYJ-48 Stepper motor notes":
grahamwideman....
Stan's "28BYJ-48 Stepper Motor with ULN2003 driver and Arduino Uno" tutorial on 42bots.com:
42bots.com/tuto...
Gavin MacDonald's "Stepper Motor Control with the Raspberry Pi" RU-vid Video:
• Stepper Motor Control ...
GreatScott!'s "Electronic Basics #24: Stepper Motors and how to use them" RU-vid Video:
• Electronic Basics #24:...
Norbert Heinz's "Working principles of several stepper motors (bipolar, unipolar, reluctance and can-stack)" RU-vid video:
• Working principles of ...
Modest Maker has an awesome tutorial on driving these with an Arduino:
• Chapter 10 - Exploring...
The ArduinoInfo.Info Wiki has some great notes and examples of using these motors with an Arduino, check them out here:
arduino-info.w...
Last Minute Engineer's Blog Post on the 28BYJ-48:
lastminuteengi...

Опубликовано:

18 авг 2024

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Комментарии : 478

@bolibardo1514 3 года назад

This one video is the Bible of Stepper Motor. No other video can explain better. The animation is superb. On any question on Stepper Motor, I shall come back to this video. Thanks.

@geozaf3679 6 дней назад

Φψ

@marcbaptista 8 лет назад

Can I say this HAS to be one of the most comprehensive and detailed instruction I've come across. I'm an active animator/filmmaker (65 yrs old!) and I'm getting back into creating my own art projects involving Arduino/steppers. Your clip was absolutely wonderful, and has given me the necessary insight and momentum to get this going. 30 years ago I had a multi-axis stepper-motor driven animation rostrum. It was massive & ludicrously expensive then. Times and the costs have changed the game. I'm excited, and you've given me the fillip to work with steppers again! Thank you. I WILL view your subsequent video on how to drive the motors via Arduino. Thanks again.

@BStateham 7 лет назад

That's awesome. I'd love to hear about your creations!

@MarkMichalowski 7 лет назад

Clearly and straightforwardly explained, great visuals, no irritating, pointless background music - excellent work! Thanks Bret! :)

@garybooting_co_uk5866 7 лет назад

This has to be by far the most comprehensive explanation of stepper motor driving that I have seen. Well presented and a wealth of information, thank you for taking the time to present this tutorial. I wish every tutorial was presented in such a detailed, yet simple, method.

@Tocsin-Bang 7 лет назад

Having been in education for about 40 years, I have to say that this is one of the best technical RU-vid presentations I've ever seen! Superb.

@BStateham 8 лет назад

WELL ITS ABOUT TIME! I finally got around to creating a followup on how to drive these motors with an Arduino. You can check it out here: aka.ms/28byjarduino

@jfumusic1 8 лет назад

+Bret Stateham Great video! Agreed, stepper motors are cool.

@jakekoethler7206 8 лет назад

Best. Tutorial. Ever. Seriously, I learned more than from all the other stepper videos combined. Do you have a Patreon?

@oljobo 3 года назад

This comment could be pinned 👍😊

@haroldadelman1130 7 лет назад

Wow! Thanks, you saved me the trouble of taking it apart! Seriously, I am a novice Arduino user, and I love the professionalism of your videos. I have a lot to learn, and I thank you for being a good hands-on teacher!

@BStateham 8 лет назад

Just saw another awesome video about all kinds of steppers motors. Check out Norbert Heinz's "Working principles of several stepper motors (bipolar, unipolar, reluctance and can-stack)" video here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Qc8zcst2blU.html . The 28BYJ-48 is a "Can-Stack" motor as Norbert explains. You can learn more at the end of his video about 33mins in: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Qc8zcst2blU.html?t=33m13s . His video explains how a bipolar can-stack motor works, but the 28BYJ-48 is wired as a unipolar motor with the center tap coming out of each coil. Watch his full video though and he explains both bi-polar and unipolar motors and it should make sense.

@andrespefia7379 6 лет назад

Bret Stateham and how we Can use 12v in uln2003 with 12v stepper motor???

@TheJuliusCo 7 лет назад

Amazing, most videos just focus on the operation of the Arduino's Sketch and the proper code, but fully understanding a project like this is equally valuable, I'm a physicist trying to get into electronics stuff, and let me tell you've done it pretty good in applying electromagnetic concept. here, thanks.

@rayguyon6563 6 лет назад

Probably the clearest and most comprehensive tutorial I have ever seen. In a word, superb. Thank you.

@leonardoaraujocosta 5 лет назад

Excellent video!! Thank you very much. I did the math, it is actually 4076 steps for a full rotation of the motor shaft in half step mode, not 4096 as mentioned. I rounded from 4075.77284.

@structure7 7 лет назад

I bought this cheap little motor/board combo on Amazon and thought, "well, let's see if there's any good documentation out there." I watched this video and fell out of my chair! I know how long it takes to put something like this together. Thank you very much for doing it!

@fijisalt7327 2 года назад

Bloody excellent explanation. I had to watch a few times to understand why we have to know the stepper motor mechanism thoroughly. Thank you 🙏

@BernhardHofmann 9 лет назад

I was confused as to why it took so many steps to get a rotation on the output shaft when I fiddled about with this from my MSP430. Your video explains it perfectly, thank you.

@visionstills3700 8 лет назад

Hi Bret, I had to watch this video twice for it to sink in and so glad I did. I'm getting incredible torque from this little stepper (same hardware setup as you show) in full step mode. You have a way of explaining complex subjects that makes it simple to understand. Thank you. My highest RU-vid compliment, Subscribed.

@BStateham 8 лет назад

Glad it helped you out!

@grumich4084 6 лет назад

That was EASILY one of the best tutorials I've ever seen on RU-vid; I now feel like a "Stepper motor EXPERT!" Now, while you didn't cover programming the servo, for me, at least, that's straight-forward, but it's nice to know how code can make use of such servos. Thank you for a truly great job!

@BStateham 6 лет назад

Thanks for the nice words @Grumich. If you are looking for a programming tutorial on the Arduino, check out aka.ms/28byjArduino

@dougdoug2165 6 лет назад

Excellent, amazingly well orchestrated presentation, impeccable graphics, nicely narrated, not the monotonic sleep inducing dialog we are used to. I have seen the light of steppers thank you for your evangelism!!

@DiySpeaker-Vn 6 лет назад

Các bạn có thể tham khảo sản phẩm tại: www.sendo.vn/dong-co-buoc-giam-toc-28byj48-5v-9375261.html

@bertbrecht7540 3 года назад

This video will be valuable for the next 100 years.

@GetchaPull 9 лет назад

This was just amazing. Thank you Sir.

@BStateham 9 лет назад

You bet! Glad you liked it. I need to get time back on the bench to finish up my Raspberry Pi and Arduino vides for how to use them. Hope to get those done soon.

@SolCunningham 8 лет назад

Aside from the operating system that I run, this is one of the greatest things MS has done! Thanks Brett.

@theotherbart 3 года назад

Possible the best explanation I’ve seen on this topic! Thanks for putting your time in this!

@ChinqMiau1 4 месяца назад

The quality of instruction and detail is astonishing. Thank you for making this a sharing this video!

@edsoncapitani 9 лет назад

Hi Bret, After seeing your video I felt compelled to say: Thank you mate! for such a detailed explanation. Thank you for taking the time to do this. The animations were fantastic help.

@casnic 8 лет назад

A fantastic tutorial on stepper motors. Very easy to follow due to being explained so well. Thank you.

@madmanscam 8 лет назад

Is this a tutorial or what ???? OMG just fantastic...am a mech engineer....turned photographer who lost touch of technology a while back and am back on it with the Intel Edison which I won at the IOT.....now this video put into place so many doubts i had....thanks so much... you are Awesome bret!!!! Subscribing to you channel now :)

@papabone61 9 лет назад

Thanks for the video mate. I am new to this lark and just starting out playing with Arduino for astronomy projects. Now I know about the stepper, next stop for me the dreaded coding. Never too old to learn :) ( 54 by the way )

@NiceAussie 5 лет назад

Excellent and very clear explanation. About the only thing I can think of that’s missing is what these can typically drive. ie application, torque etc

@BStateham 5 лет назад

Agree, I honestly haven't used them in a ton of projects (just a couple) so I'm not sure I'm the best person to say. I'd love to hear what others are using them for though!

@Taha-jj1kr 6 лет назад

Possibly The Best Digestible Informative Explanation about Stepper motors RU-vid

@malcolmhodgson7540 6 лет назад

Such a clear explanation. Thank you for this. I now understand the half step mode which explains why my original program drove the thing at twice the rate (wave) I was expecting from the spec. A quick tweak of the code and all is now perfect. Great job great video.

@tracywallace9588 8 лет назад

Outstanding presentation. I have been programming for over two decades and am finally starting to get into physical computing. This was perfect. I have motors spinning! Thanks.

@AlanMedina314 8 лет назад

I love you Bret, This video is really helpful for my assembly class. We are working on basic stepper control using 8051. And this video really helps to get a deeper intuition of motor operation. This video Rocks.

@NoxuzBlog 8 лет назад

way more info than needed, and its apreciated, thank you a ton

@codeclubburtonsaturday6268 7 лет назад

Thanks for taking the time to share this awesome detailed vid. I picked up 5 of these off ebay for the kids at code club to play with (me first though of course haha). I'll check out your arduino vid too as that's what I'll be hooking these up to.

@BStateham 7 лет назад

Awesome!

@jonathanramirez4183 8 лет назад

This is just what I needed! This is my first build and I can't tell how helpful this video was.

@edgwatergirl4220 6 лет назад

OUTSTANDING TOP OF THE LINE SUPREME PRESENTATION!!!

@franscoisjordaan3292 4 года назад

Thanks a lot. This is definitely the best explanation I have ever seen on RU-vid for anything. Now I have a full understanding on how and why I program the code in my Arduino to drive the steppers. Cheers!

@50lane50 9 лет назад

This is the type of videos I've been looking for. Very informative and complete description of stepper motors. Great video Keep them coming !!!

@ErikBongers 7 лет назад

I second what many others have said already: this was an extremely well prepared and presented presentation. Thank you.

@mikeeangel1 7 лет назад

Just awesome the way you explain such a complex thing. Before seeing your video i didn't knew pretty much about step motors. thanks a lot buddy! Greetings from Mexico!

@murrygans1786 9 лет назад

Finally, I think I understand how this little stepper motor works. Very nicely done. I can hardly wait to get home and write some code for the Arduino that I can control.

@johnblack9038 7 лет назад

I've never actually enjoyed death by powerpoint before. That was informative, and well presented. Thank you so much.

@BStateham 7 лет назад

Yep. It's all PowerPoint! :-)

@johnblack9038 7 лет назад

And I guess that wouldn't be an example of death by powerpoint because it wasn't boring.

@edwardshaughnessy1107 6 лет назад

Excellent video...had to watch it a few times to fully appreciate the subtly of it all.

@lindaxin5034 7 лет назад

amazing tutorials. seriously you have saved my life. instructions are SO clear and diagrams are REALLY helpful. THANKYOU!!

@chance1986 4 года назад

Excellent description of the various drive methods. Well explained, articulate, with easy to understand graphics. I learned a lot. Thank you so much. (subscribed)

@davidmiller5832 6 лет назад

The Best Explanation of Stepper Motors And Controllers that I've come across yet. Saved to Playlist/Subscribed/Notifications On.

@rknaik76 8 лет назад

Very informative video. The gear ratio part was also explained nicely, I got that motor now, waiting for the female-male pins to arrive.. Thanks a lot.

@mateusz4r 8 лет назад

This is the best and complex stepper motor tutorial i've ever seen. Good job, Bret! :)

@yongminkim3187 4 года назад

I finally got to understand the step motor after watching this video. Thank you.

@rhysun 8 лет назад

A beautifully crafted tutorial, thank you. Bookmarked for future reference!

@amtpdb1 9 лет назад

Thanks for the video. I am trying to work with a mm2001 driver board which uses this chip. Your explanation clears some of my issues. Thanks and have a nice day.

@gopalrao4548 9 месяцев назад

Excellent explanation of stepper motor... and driver...

@mrnelgin 7 лет назад

Nice video which helps me understand some of concepts behind the programming on the stepper motor. Thanks for sharing.

@351yt 6 лет назад

Great intro to stepper motors. Thank you for providing this.

@saharazen 6 лет назад

Excellent, thorough, no wasted time, and very helpful. Thanks!

@janverhoeff8688 9 лет назад

It did help me unerdtanding / starting with stepper motor Very much thanks from the Netherlands

@earlevans3851 8 лет назад

One of the best tutorial videos I've seen. I'm digging out my 28BYJ-48 motors and ULN2003 boards right now to try some of this. Thanks so much. By the way, based on your gear calculations of 63.65 turns of the inner rotor for one turn of the motor shaft, I figured that 10,184 full steps (32 per inner rotation) will get you exactly 5 turns of the outer shaft. Does that sound right?

@reeseyme9613 8 лет назад

very detail tutorial on the motor, i will say the best in youtube. excellent work. please keep making such tutorial on peripherals for microcontrollers.

@moegasim 7 лет назад

amazing...i actually just went and bought these today because of your video.....great help. thanks

@nailedart4431 9 лет назад

Just what I needed, thank you for a great video, animation and explanation. Totally supporting people like you.

@Azyro777 7 лет назад

I rarely comment on RU-vid, but your video is too great to just got a thumbs up. I enjoyed the presentation and its explanation, it really helps to understand. (..and one of a few tutorials that doesn't lulaby me to sleep :D ). Definitely worth the 200k~ish view :)

@BStateham 7 лет назад

Thansk!

@crocellian2972 7 лет назад

I know this topic from working stack shot macro photo gear. You are a master teacher. Thank you.

@senthilkumarm9248 7 лет назад

This is awesome video with clear animations and explanations. Hats off Bret. :)

@michaelcullis5071 6 лет назад

Great video, I now understand steppers a lot more.

@derekhawley9660 Месяц назад

What a fantastic explanation, thanks Bret. Derek (UK)

@naga540 9 лет назад

Great video man, I'm building an xy-ploter table and your video was really informative about the how this motors work!

@stevedayyne 8 лет назад

Thanks Bret, a really well presented demo, with great graphics!

@huraibyel-huraiby7462 8 лет назад

The go to guide for stepper motors.

@waltsteinchen 8 месяцев назад

Absolute phantastic detailed video!

@gullit97 7 лет назад

Thanks man! Best tutorial i've seen in a long time! If only all my teachers were this clear!

@markrobirds7984 7 лет назад

~64:1 gear ratio, besides greater resolution, provides good multiplication of torque. Half-stepping will still provide enough torque to be used in many applications.

@BStateham 7 лет назад

Agreed

@fcampanini 4 года назад

That's great Sir! It's clear, easy enough for a maker non professional and, moreover for me, it's straight to the point! So... THANKS!

@aminebenkirane3006 Год назад

Incredible Content, explanation, and graphics, Thank you for the knowledge you transferred to us!

@tonyiannetta 7 лет назад

Very good explanation and demo of internal operations.

@timspychalla 7 лет назад

Thank you so much for creating this video. It was super informative. I just ordered a couple of these motors off of ebay and am excited to try them out!

@jakekoethler7206 8 лет назад

Really great video. Best stepper tutorial I've seen. Looking forward to the follow-up👍

@peteralexander478 7 лет назад

Best video,and follow up I have yet seen, Nice one Bret.

@thomasalexander1563 7 лет назад

Nice visualization of stepper motor... and the explanation make everythings clear.. Thanks..

@DGIA 7 лет назад

Great video, graphics and animation! good job!

@CustomMaDe-eo2wx 6 лет назад

Wow, that was very well explained, thank you. Now thinking about adding a routine to my sketch to compensate this gear ratio of1:63,.... I’m trying to build a clock with this motor.

@annaoaulinovna 7 лет назад

the best stepper motor video. thank you very much.

@marcotronic 6 лет назад

best explanation on this system ever. Excellent!

@makingtechsense126 6 лет назад

Thank you for the excellent video as well as the sample code on GitHub. Some people have been recommending physically modifying these stepper motors to force Full Step stepping. I thought it was rather odd since I was pretty sure you could just code it. Your video clearly explained how to achieve full step using code.

@tomhorsley6566 2 года назад

I multiplied out those gear ratios in high precision float and get 63.68395062 not 63.65. I only mention it because I'm working on a clock and really want to keep track of the fractional bits I missed 360 by and add in extra steps when the fraction gets over 1.

@epineh 6 лет назад

Lots of effort put into making this video, great job and thank you.

@RobertKarreman 9 лет назад

Excellent tutorial and intro to steppers! Really looking forward to more videos - particularly with Arduino. The dream is to build a small robot with a few of these motors and drivers :)

@Booruvcheek 5 лет назад

Great video, very clear and concise, beautiful presentation. Thanks a bunch!

@NetWanderer101 8 лет назад

Excellent and very informative video. My students and I benefit a lot from your videos. Thanks a lot.

@Asturiasgk 8 лет назад

Thanks for putting in the time and making this great and informative video.

@darioIC 7 лет назад

wow, that's a very clear and very informative video. Thanks for taking the time to make it.

@tezz777able 9 лет назад

well done and thank you for taking the time to do the video, that what makes youtubers great

@hernandjavines2087 5 лет назад

Wow! This is a great explanation of this little motor. Thanks you.

@MrTreeTiger 8 лет назад

A very detailed and useful explanation - good work!

@madisatayev 7 лет назад

Great video. Thanks for this. Very detailed and clear.

@danielmoshi101 7 лет назад

this explanation was really good. i loved it

@andrewa9496 6 лет назад

This video is very helpful and informative. It helped me out so much on a project I am doing.

@abhijeet6720 4 года назад

FYI, the Graham Wideman's "Motors- 28BYJ-48 Stepper motor notes" link does not exist anymore, you can find the pdf version of that notes from this link www.kollino.de/download/motors_28byj-48_stepper_motor_notes_-_grahamwideman/

@BStateham 4 года назад

Thanks so much for sharing that @Abhijeet.