Hi everyone - It's come to my attention that there has been someone masquerading as myself, responding to some comments here with a link to a Telegram chat to win a prize from me. THIS IS A SCAM, I am not holding a contest, nor do I have a Telegram account. PLEASE DO NOT RESPOND TO THESE MESSAGES!! It's happening on a lot of my videos, I'm taking steps to remove them manually, but as I have 162 videos, it will take some time. If you do run across a suspicious comment, I would appreciate you letting me know at info@dronebotworkshop.com. Thanks! Bill (The real one!)
Making this video was somewhat of a "comedy of errors", despite it being almost 90 minutes long, I actually filmed about twice as much and deleted it as I redesigned the project about three times! If you're subscribed to my newsletter, you can read all the gory details in the one I'm sending out tomorrow (Dec 5).
Thank You Bill for all your hard work and sharing it with us! This robot and particularly the unique wheel design opens up ALL kinds of possibilities! Well Done Sir! (As we have come to expect). Always Excellent. 🤩🤖❤
For such a complicated project, you did a wonderful job of explaining how to build it. As if understanding how to maneuver with the mecanum wheels wasn't difficult enough, your incorporating the WiFi Now to control its movement was an incredible feat. Thank you for all your fine work!
Glad to hear your on the mends Bill, what a great project that covers so much. I like you incorporated the TTGO in it also, ran across volos project while trying to get a LILYGO S3 T display up and running . Between you, Paul McWhorter and Volos you're keeping be broke in electronic projects. Thanks for everything and sharing your wealth of knowledge.
I omitted an important instruction for getting the LilyGo TTGO T-Display to work with the TFT_eSPI Library; there is a file you need to edit to make this display work. I have updated the article to include the instructions for making this simple edit - dronebotworkshop.com/mecanum/#TFT-eSPI_Library_Modifications. Thank you to Steve (Code-Cage on the DroneBot Workshop Forum) for bringing this to my attention!
Good to see you well after quite a while.Beautiful work. This is a fantastic, wholesome build that covers almost all the aspects of robot control. Am thoroughly delighted and thank you greatly for that. Please stay well too.
Wie immer ein sehr schönes und informatives Video. Insbesondere die Vorstellung der Mecanum Räder war hervorragend. Danke - As always, a very nice and informative video. In particular, the presentation of the Mecanum wheels was outstanding. Thanks
Wow! What a genius project! Thanks for sharing your knowledge & skills and for the polished presentation! I can’t wait to implement some of this in my own projects! Bless you Bill you’re a treasure!
Very nice project, so much detail in the whole build. I am very interested in robot projects as I have a couple that I have built myself. They are not as advanced as what you have created, but I am learning. Thank you, Bill for this very informative video as I will be watching it again and will also be reading your article. Thanks again.
It's so instructive video. Thank you dear professor. I'd like to know if you can give me a 3D design of macanum wheels which I can use it with yellow motors. I Wanna print it because it's too cost
Really an EXCELLENT full system workshop. Applause. Having the inclusion of ESP-NOW and the slick way you did the error screen and watchdog are really smart items that less experienced hobbiests and engineers can learn from. Again - well done. Impressive.
Excellent demonstration of knowledge , experience , organization and disacipline. Greatly appreciated.... and greetings from Germany. I have a freenove ESP32-S3 CAM- board as central mcu - The camera is already using a lot of IOs , so i ll make a I2C connection to a RP2040 Pico , which delivers the 12 output pins for the motor control and can easily drive a 3.5 inch TFT - naturally with the wonderful library from Bodmer. So the LEDs will be obsolet as the electrical situation can be displayed on the screen. The Pico is my favorite workhorse for such tasks. For the remote controll i will use a WT32-SC01 3.5 TFT with integrated ESP32 AND - VERY IMPORTANT - a capacitive touchscreen - to mimic the joystick . I had very poor results with those standard analog joysticks - the whole analog range is a few millimeters - so they are not at all responsive enought for fine controls. I dont have any experience with the ESP now WIFI - connection - but this part i can learn from you . BILL ---- GREAT LIKE ALWAYS.
Volos is great. LilyGo sent him a new T-Display called T-Embed and it has a dial. Iz wonder if that would make a good remote for this. He wasnt sure what to do with it I see that he turned it into a radio. He's teaching microcontrollers to his students They're young, around 10, I think. It's good for them no matter what they do later on. I'm sure that they would love your robot car.
I love your content, and I have learned so much from you. I wished you had shorter videos as well. Something for some quick projects or simpler projects for getting started. The information you provide is beyond wonderful, but sometimes it would be nice to see some instructional video from someone like you that has great content.
Have you figured out anything to combat the surface differences/slipping of the mecanum wheels? I have the exact same base (but a little different wheels, but they're the same size) and I'm using an Adafruit Motor Hat for an Uno instead (but ofc this doesnt matter) I'm currently trying a PID algorithm for preventing the slight rotation around the z axis and the inexact movements around the xy axis, but it really doesn't seem to like the sideways movement (i.e. strafing left or right) and it seems to go off on a 45-50 degree angle instead of 90. These work without any sort of PID correction, but I dont really like the slight z axis rotations or slipping and was trying to fix it. Is there any merit to actually continuing on with trying to tune a PID control mechanism or should I just accept that It'll have some inaccuracies?
This was a lot of work, and I appreciate the information. I have ordered the parts. I plan to put FPV Camera Foxeer Micro Cat 3 Night Camera Low latency 1200TVL OSD, InfiRay Thermal Camera, and GPS and convert some of the code to use a Radio Master 16S TX and Receiver. I have plans for this equipment. Using this information to integrate the camera with the remote control vehicle. DIY Thermal Cameras for Drones, RC & FPV - Tutorial, Schematics, Tests - drones thermal imaging th-cam.com/video/JYp3dDWWEJ4/w-d-xo.html
It’s neat, but I’m not a fan of the controls. Two analog joysticks would be better. Left analog Forward/reverse/strafe left/strafe right. Right analog turn left/turn right + 2 others like shift front left/shift right. 2 joysticks and 4 switches (like a PlayStation controller) could give our all of the different controls. Left analog Forward/reverse while strafing left right Right analog Forward/reverse while turning left/turn right L1+Left analog R/L = shift front only R/L L2+Left analog R/L = shift Rear only R/L R1+Right analog R/L = turn front only R/L R2+Right analog R/L = turn rear only R/L You would have so much control without having to scroll through switching modes. Even just the one joystick with momentary buttons for the modes on the bottom of the joystick controller would allow almost seamless transitions while driving it. It would be more of a learning curve than a console controller, but it would be very cool to have it all be in one hand. I would only want to have 5 modes of No buttons pressed, index, middle, ring, pinky, but you could do 15…. Or more 😳 None Index Index middle Index middle ring Index middle pinky Index middle ring pinky Index ring Index ring pinky Index pinky Middle Middle ring Middle ring pinky Middle pinky Ring Ring pinky You could go more by the order that they are pressed, and the number of times that they are pressed before they are held down and the joystick is used all the way to an infinite number of modes 🤯, but it would never be easy to instinctively learn more than about 5 modes of using an analog joystick. With it only being 4 motors that can either go forward or reverse you could even just use 4 analog switches that move in two directions, one for each wheel. I still think that a PlayStation or Xbox controller would be the most instinctive thing to learn and the easiest thing to build and map the controls for.
Hello everyone, hello Bill, Bill, I would like to build a car, I watch videos here and there, and this evening I stopped on the "Mecanum Wheel Robot Car". Instead of implementing an ESP-Now link, do you think I could go for a PS3 controller replacement as you described in another vidéo?
Good morning, Bill. I am from Brazil. I would like to ask you a question. I'm new to this area of robotics and electronics. The question is: why did you place the negative on the project chassis? Is the battery no longer negative? Can I connect the battery negative to the same wiring as the chassis negative? Could you explain it to me? Thanks in advance. Att,
Thanks for your interesting content, very useful and clear. Please explain, is it possible to use touchscreen with mounted esp32 as a normal remote control unit? There is wt32-sc01 plus board, so looks like it could be used for controlling instead of smartphone, but dont know with streaming video or without... is it possible? Thx!
Adafruit want like 5 bucks a piece for them. They're pl9823 and while still pricey cost me over 100 for 600 of them. They are by far the nicest color addressable leds you can buy.
I'm having difficulty wrapping my head around the statements that say one set of Mecanum wheels have the rollers at 45 degrees to the axle line and the other set has the rollers at 45 degrees to the wheel plane. To me, my mind just sees the difference in the two sets is that the 45 degree angle is just rotated 90 degrees from one set to the other. And either could be considered 45 degrees to the axle line or wheel plane. Can anyone help clear the fog in my old gray matter?
Hello Mr. DroneBot, I'm trying to find an opensource receiver with the same size and functionality as the Radiolink R4FGM to use in my DIY RC Hotwheels projects. It measures 25*13mm, has 4 channels AND a built-in gyro! Do you think this is a project you would be interested in doing?
11:25 I always wonder, how do you choose which pins of the ESP32 to use - it shouldn't matter that much, right? wouldn't it be nicer to use 34/35 instead of 23/19 to have the pins for the first driver all next to each other?
hi i was wondering if there are any plans for a video about reading encoders using the mcp23(s/0)17 using the adafruit library (im stuck and no clue whats happening anymore lmao)
Great video! Question..... I have the notification bell set in TH-cam, however I did not receive anything regarding your videos. I only came by this thru your email. Why does this happen?
Bill, wow. How would this ESP32 LillyGo board compare to using a Basic RC remote like you used on one of your other videos (Flysky FR6 IIRC). For reliability and robot control. I need to control a large robot (T-shirt cannon) in a school gym. Thanks , Scott
Bill, Thanks for another excellent tutorial, you made the subject come alive with your accurate descriptions and clear thinking. I did have a question. Small vehicles are easily prone to getting stuck so designing a way to work around this seems like a good challenge. Do you or any of your loyal subscribers have any thoughts on how to augment your design to mitigate this? Thanks.
I know I'm late to the game, but ... At 7:58 you showed us the arrow you drew on the chassis to indicate forward, and it points to the left. I suppose it might be a camera shutter effect, but in the robot test demo around the 23 minute mark, are the wheels turning backwards to the serial monitor printed direction? It really really looks like when the screen says "Forward", the wheels are turning to drive the chassis to the right of the screen (and of course, the opposite for "Reverse"). And when the text says "Right", it looks like the wheels would drive the robot to the bottom of the screen (vice versa for "Left"), which would also be wrong according to the arrow on the chassis. It's harder to make out the diagonal motions, but I think they're reversed too. If it _was_ all reversed, I guess the easiest fix would be to just re-draw the arrow on the (symmetrical) chassis?
Wow! Great project Bill...been an avid fan of your channel,,/ How I wish you could consider integrating Orange Pi as a single on board computer for being a cheaper affordable alternative for the expansion capability of this project. 😊 Really looking forward to this tutorial. Thanks!
Hi Bill Nice videos I wrote to you in the comments section of your ATX Construction video and I wanted some clarifications, I would greatly appreciate a reply from you in that regard as I built a bench supply according to your instructions but I have some problems So please refer to that video and let me know what to do to solve that Thanks and looking forward to you reply
What another wonderful video. I am in the process of building up my own Mecanum 4 wheeled robot using your fantastic video and article. I accidentally ordered the DRV8833 Dual Motor Driver. As you mentioned in your "Driving DC Motors with Microcontrollers" this reduces the number of control lines. I managed to get the same base you have for the robot, but needed to drill some holes to attach the optical rotation sensors. To try and reduce complexity I am wiring the motor power directly to the ESP Dev Module which has an onboard voltage regulator. I then use the 3.3V from the ESP32 to drive the optical sensors etc. This may have some issues down the line, but worth a shot to reduce the number of modules.
Wow! You said it took a while, and it's not hard to see why. This project is fantastic. I've been working on something a little bit similar using an Espruino 1.4, but I didn't know about Mecanum Wheels, and oh boy will they solve some problems. Will your final solution involve proximity sensors? I'm trying to develop a device that senses and learns about it's environment (using proximity sensors and counting stepper motor rotations), and stores a plan of where it can go (and where it cannot), so that it can subsequently navigate autonomously. Strategically placed QR codes seem to be necessary to recalibrate position from time to time (to allow for wheel slip).
You only need the caps for the 8mm neopixels if you're stringing over 20 or so. If you use a teensy 4.1 to drive them you don't need caps for any of them.
This is such a fantastic tutorial and very detailed yet easy to follow, very keen to dive into the code and give this a try with my mecanum robot kit and esp32 module. I have a larger touch screen and raspberry pi zero W that I might try to create a controller with camera feed based on some of your work
I always learn on two different levels from your videos: The first is the subject material itself, and the second is how to present and explain technical concepts -- you're extremely good at both. Thanks for all your great work!
Hello! We are from Ukraine. Is it possible to make an mp3 player based on the esp 32 cam chip? It is necessary to implement access to the sd to delete and add mp3 files. It is very necessary to implement. Thanks for the tips !
One difference I would make is to use rgb leds with 6 pins, 6 independent LEDs. Then you van wire one across the motor in one polarity wirh current limiting resistor, one the other way, and yhe third perhaps across a bridge rectifier on the motor so that when either direction is energized the LED lights. No code to add those features.
Wow, lots of info here... I think it'll take a couple+ times to absorb all that you packed into this video. Certainly tons of work and elements that can be leveraged into other projects as well
Mecanum Wheel Robot Car & ESP-NOW Remote .Using Arduino v1.8.19 . Sketch "getmac" workes .Verify Sketch "4wd-test",get a error . Line 61 { analogWrite(MF_PWMA, speed_slow); } ERROR ERROR [analogwrite was not declared in this scope] What have I mist.Can you hellp?
Had the same. Cure found in internet. Replace every occurrence in the code of "analogWrite" with "ledcWrite" . The code will then compile and work correctly. At least it did for me.
Wow, this is so impressive and really easy to follow for an old timer like me. I've never built anything like this before although a novice with ESP32's etc. This is a must do project. Many thanks.
Bill, I want to express my great appreciation for this project. I just got done building my own ESP32 RC car. Your power pack design for this car helped me improve the battery pack so that I only needed a single battery pack instead of two. I was not aware of the neopixel package that you used on your car until watching this video. Thank you for making me aware of that. I cut 4 WS2812B LEDs off of a strip and soldered extension wires between for my neopixels. Your approach required less tricky soldering. I really enjoyed seeing the mecanum wheels in action. I can tell how much work you put into this project. You did a fantastic job explaining it. Thank you so much!
In case you have not already done so, could you please tell us the supplier and part numbers of the frame, wheels, and motors you used for this project?
i found a toy rc car without control but with these wheels in a thrift store(+ lipo battery included) so this is my new project for the week. thanks for the excellent job explaining how it works
I agree that it is good to know that you can interchange many different and cheaper addressable WS2812b leds. That said, it is really good to support Adafruit when you can afford it. Their solid breakout boards, great tutorials , support, and excellent libraries allow you to get a new chip or module up and running very fast.
Hi everyone - It's come to my attention that there has been someone masquerading as myself, responding to some comments here with a link to a Telegram chat to win a prize from me. THIS IS A SCAM, I am not holding a contest, nor do I have a Telegram account. PLEASE DO NOT RESPOND TO THESE MESSAGES!!
It's happening on a lot of my videos, I'm taking steps to remove them manually, but as I have 162 videos, it will take some time. If you do run across a suspicious comment, I would appreciate you letting me know at info@dronebotworkshop.com.
Thanks!
Bill (The real one!)
Making this video was somewhat of a "comedy of errors", despite it being almost 90 minutes long, I actually filmed about twice as much and deleted it as I redesigned the project about three times!
If you're subscribed to my newsletter, you can read all the gory details in the one I'm sending out tomorrow (Dec 5).
Thank you so much for sharing your wealth of information. It has got me into robotics
Thank You Bill for all your hard work and sharing it with us! This robot and particularly the unique wheel design opens up ALL kinds of possibilities!
Well Done Sir! (As we have come to expect). Always Excellent. 🤩🤖❤
For such a complicated project, you did a wonderful job of explaining how to build it. As if understanding how to maneuver with the mecanum wheels wasn't difficult enough, your incorporating the WiFi Now to control its movement was an incredible feat. Thank you for all your fine work!
How are you?
Thank you for asking, I am getting better.
Glad to hear your on the mends Bill, what a great project that covers so much. I like you incorporated the TTGO in it also, ran across volos project while trying to get a LILYGO S3 T display up and running . Between you, Paul McWhorter and Volos you're keeping be broke in electronic projects. Thanks for everything and sharing your wealth of knowledge.
I omitted an important instruction for getting the LilyGo TTGO T-Display to work with the TFT_eSPI Library; there is a file you need to edit to make this display work. I have updated the article to include the instructions for making this simple edit - dronebotworkshop.com/mecanum/#TFT-eSPI_Library_Modifications.
Thank you to Steve (Code-Cage on the DroneBot Workshop Forum) for bringing this to my attention!
Thank you. I was about to go into DTs!!! And I love that I can still learn stuff beyond the 38th anniversary of my 29th birthday!! LOVE your posts!
If I do the math correctly, we're about the same age. I've just never described it that way!
@@Dronebotworkshop See, we both get to learn! I learn about electronics; you learn about . . . well . . . deception. :)
I from VN. I fllow the teacher, I well become a talented engineer😆😆😆. Thank you Teacher!
Good to see you well after quite a while.Beautiful work. This is a fantastic, wholesome build that covers almost all the aspects of robot control. Am thoroughly delighted and thank you greatly for that. Please stay well too.
Wie immer ein sehr schönes und informatives Video. Insbesondere die Vorstellung der Mecanum Räder war hervorragend. Danke - As always, a very nice and informative video. In particular, the presentation of the Mecanum wheels was outstanding. Thanks
Clearly explained and easy to follow. One of the best teachers on TH-cam.
Wow! What a genius project! Thanks for sharing your knowledge & skills and for the polished presentation! I can’t wait to implement some of this in my own projects! Bless you Bill you’re a treasure!
Very nice project, so much detail in the whole build. I am very interested in robot projects as I have a couple that I have built myself. They are not as advanced as what you have created, but I am learning. Thank you, Bill for this very informative video as I will be watching it again and will also be reading your article. Thanks again.
Welcome back !
Thanks for the nice video
It's so instructive video. Thank you dear professor. I'd like to know if you can give me a 3D design of macanum wheels which I can use it with yellow motors. I Wanna print it because it's too cost
Really an EXCELLENT full system workshop. Applause. Having the inclusion of ESP-NOW and the slick way you did the error screen and watchdog are really smart items that less experienced hobbiests and engineers can learn from. Again - well done. Impressive.
Huh… That was a lot, but as usual, very well explained.Thank you.
Excellent demonstration of knowledge , experience , organization and disacipline. Greatly appreciated.... and greetings from Germany.
I have a freenove ESP32-S3 CAM- board as central mcu - The camera is already using a lot of IOs , so i ll make a I2C connection to a RP2040 Pico , which delivers the 12 output pins for the motor control and can easily drive a 3.5 inch TFT - naturally with the wonderful library from Bodmer. So the LEDs will be obsolet as the electrical situation can be displayed on the screen.
The Pico is my favorite workhorse for such tasks.
For the remote controll i will use a WT32-SC01 3.5 TFT with integrated ESP32 AND - VERY IMPORTANT - a capacitive touchscreen - to mimic the joystick .
I had very poor results with those standard analog joysticks - the whole analog range is a few millimeters - so they are not at all responsive enought for fine controls.
I dont have any experience with the ESP now WIFI - connection - but this part i can learn from you . BILL ---- GREAT LIKE ALWAYS.
This is a great way to start my Sunday morning. It’s been so long 🎉
Yes I know - getting this one together was a comedy of errors. Should have another one much sooner, hope you enjoy it!
Volos is great. LilyGo sent him a new T-Display called T-Embed and it has a dial. Iz wonder if that would make a good remote for this. He wasnt sure what to do with it I see that he turned it into a radio. He's teaching microcontrollers to his students They're young, around 10, I think. It's good for them no matter what they do later on. I'm sure that they would love your robot car.
Great video. IMHO it would have been easier to follow without the added complication of the LED's.
I love your content, and I have learned so much from you. I wished you had shorter videos as well. Something for some quick projects or simpler projects for getting started. The information you provide is beyond wonderful, but sometimes it would be nice to see some instructional video from someone like you that has great content.
Please keep making such wonderful videos and be healthy
Have you figured out anything to combat the surface differences/slipping of the mecanum wheels?
I have the exact same base (but a little different wheels, but they're the same size) and I'm using an Adafruit Motor Hat for an Uno instead (but ofc this doesnt matter)
I'm currently trying a PID algorithm for preventing the slight rotation around the z axis and the inexact movements around the xy axis, but it really doesn't seem to like the sideways movement (i.e. strafing left or right) and it seems to go off on a 45-50 degree angle instead of 90. These work without any sort of PID correction, but I dont really like the slight z axis rotations or slipping and was trying to fix it. Is there any merit to actually continuing on with trying to tune a PID control mechanism or should I just accept that It'll have some inaccuracies?
This was a lot of work, and I appreciate the information. I have ordered the parts. I plan to put FPV Camera Foxeer Micro Cat 3 Night Camera Low latency 1200TVL OSD, InfiRay Thermal Camera, and GPS and convert some of the code to use a Radio Master 16S TX and Receiver. I have plans for this equipment.
Using this information to integrate the camera with the remote control vehicle.
DIY Thermal Cameras for Drones, RC & FPV - Tutorial, Schematics, Tests - drones thermal imaging
th-cam.com/video/JYp3dDWWEJ4/w-d-xo.html
It’s neat, but I’m not a fan of the controls. Two analog joysticks would be better. Left analog Forward/reverse/strafe left/strafe right. Right analog turn left/turn right + 2 others like shift front left/shift right.
2 joysticks and 4 switches (like a PlayStation controller) could give our all of the different controls.
Left analog Forward/reverse while strafing left right
Right analog Forward/reverse while turning left/turn right
L1+Left analog R/L = shift front only R/L
L2+Left analog R/L = shift Rear only R/L
R1+Right analog R/L = turn front only R/L
R2+Right analog R/L = turn rear only R/L
You would have so much control without having to scroll through switching modes. Even just the one joystick with momentary buttons for the modes on the bottom of the joystick controller would allow almost seamless transitions while driving it. It would be more of a learning curve than a console controller, but it would be very cool to have it all be in one hand.
I would only want to have 5 modes of
No buttons pressed, index, middle, ring, pinky, but you could do 15…. Or more 😳
None
Index
Index middle
Index middle ring
Index middle pinky
Index middle ring pinky
Index ring
Index ring pinky
Index pinky
Middle
Middle ring
Middle ring pinky
Middle pinky
Ring
Ring pinky
You could go more by the order that they are pressed, and the number of times that they are pressed before they are held down and the joystick is used all the way to an infinite number of modes 🤯, but it would never be easy to instinctively learn more than about 5 modes of using an analog joystick.
With it only being 4 motors that can either go forward or reverse you could even just use 4 analog switches that move in two directions, one for each wheel.
I still think that a PlayStation or Xbox controller would be the most instinctive thing to learn and the easiest thing to build and map the controls for.
Hello everyone, hello Bill,
Bill, I would like to build a car, I watch videos here and there, and this evening I stopped on the "Mecanum Wheel Robot Car". Instead of implementing an ESP-Now link, do you think I could go for a PS3 controller replacement as you described in another vidéo?
Good morning, Bill. I am from Brazil. I would like to ask you a question. I'm new to this area of robotics and electronics. The question is: why did you place the negative on the project chassis? Is the battery no longer negative? Can I connect the battery negative to the same wiring as the chassis negative? Could you explain it to me?
Thanks in advance.
Att,
Thanks for your interesting content, very useful and clear.
Please explain, is it possible to use touchscreen with mounted esp32 as a normal remote control unit? There is wt32-sc01 plus board, so looks like it could be used for controlling instead of smartphone, but dont know with streaming video or without... is it possible? Thx!
Quite a project ! Very well done ! 👍👍👍
Hi. I'm having problems with the Arduino ide 2.0.3(on my Mac-intel). Its stuck on the loading screen.
Adafruit want like 5 bucks a piece for them. They're pl9823 and while still pricey cost me over 100 for 600 of them. They are by far the nicest color addressable leds you can buy.
thank you very much sir! Just wanted to know the weight, top speed and the motors being used for the rc car.
Hi, does anyone have a solution for ledcSetup and ledcAttachPin in the new arduino IDE update?
Thank you for this. Excellent video! 🚀
Glad you are back, looking forward to this 😊
Can you make a Video about how to use NTP servers and how to work with its data?
Or is there an existing Video where you explain that?
Best regards
bill your webpage seems unresponsive. idk if you did an update recently but something is causing it to lag and not load properly
Hello esp now can you make ds18b20 sensor combi room thermostat?
Is there a reason that stopMotors() doesn't automatically call ledAllStop()?
I'm having difficulty wrapping my head around the statements that say one set of Mecanum wheels have the rollers at 45 degrees to the axle line and the other set has the rollers at 45 degrees to the wheel plane. To me, my mind just sees the difference in the two sets is that the 45 degree angle is just rotated 90 degrees from one set to the other. And either could be considered 45 degrees to the axle line or wheel plane. Can anyone help clear the fog in my old gray matter?
What I wonder is how to use a flysky controller to communicate with the esp32
I always wanted to know how to build a robot from scratch, you made my wish come true ❤❤❤❤
dont use l298, they have a to high internal resistance
dont use linear power regs, they are really inefficient
Off topic. What is the theme of your code coloring called? Very easy on the eyes.
Hello Mr. DroneBot, I'm trying to find an opensource receiver with the same size and functionality as the Radiolink R4FGM to use in my DIY RC Hotwheels projects.
It measures 25*13mm, has 4 channels AND a built-in gyro! Do you think this is a project you would be interested in doing?
11:25 I always wonder, how do you choose which pins of the ESP32 to use - it shouldn't matter that much, right? wouldn't it be nicer to use 34/35 instead of 23/19 to have the pins for the first driver all next to each other?
hi i was wondering if there are any plans for a video about reading encoders using the mcp23(s/0)17 using the adafruit library (im stuck and no clue whats happening anymore lmao)
I love your content, by which software or platform you use to make circuit diagrams for videos.
Sir, how do you brake a dc brush-type motor electrically, meaning holding the shaft without rotation?
short the wires together.
@@thomasmaiden3356 My mistake, hold or lock the shaft electrically.
Great video! Question.....
I have the notification bell set in TH-cam, however I did not receive anything regarding your videos. I only came by this thru your email. Why does this happen?
Omniwheel is the older name (depending on patented) of these kind of wheels ;)
Bill, wow. How would this ESP32 LillyGo board compare to using a Basic RC remote like you used on one of your other videos (Flysky FR6 IIRC). For reliability and robot control. I need to control a large robot (T-shirt cannon) in a school gym. Thanks , Scott
Bill, Thanks for another excellent tutorial, you made the subject come alive with your accurate descriptions and clear thinking. I did have a question. Small vehicles are easily prone to getting stuck so designing a way to work around this seems like a good challenge. Do you or any of your loyal subscribers have any thoughts on how to augment your design to mitigate this? Thanks.
Thanks for all the great videos. Every time I have a question about MCU projects I check your videos, you've usually covered it already.
I know I'm late to the game, but ...
At 7:58 you showed us the arrow you drew on the chassis to indicate forward, and it points to the left.
I suppose it might be a camera shutter effect, but in the robot test demo around the 23 minute mark, are the wheels turning backwards to the serial monitor printed direction?
It really really looks like when the screen says "Forward", the wheels are turning to drive the chassis to the right of the screen (and of course, the opposite for "Reverse"). And when the text says "Right", it looks like the wheels would drive the robot to the bottom of the screen (vice versa for "Left"), which would also be wrong according to the arrow on the chassis. It's harder to make out the diagonal motions, but I think they're reversed too.
If it _was_ all reversed, I guess the easiest fix would be to just re-draw the arrow on the (symmetrical) chassis?
Wow! Great project Bill...been an avid fan of your channel,,/ How I wish you could consider integrating Orange Pi as a single on board computer for being a cheaper affordable alternative for the expansion capability of this project. 😊 Really looking forward to this tutorial. Thanks!
finally nice to see that you are building something close to a robot? hhh
Plz build a ROS2-based robot.
Hi Bill
Nice videos
I wrote to you in the comments section of your ATX Construction video and I wanted some clarifications, I would greatly appreciate a reply from you in that regard as I built a bench supply according to your instructions but I have some problems So please refer to that video and let me know what to do to solve that
Thanks and looking forward to you reply
What another wonderful video. I am in the process of building up my own Mecanum 4 wheeled robot using your fantastic video and article. I accidentally ordered the DRV8833 Dual Motor Driver. As you mentioned in your "Driving DC Motors with Microcontrollers" this reduces the number of control lines. I managed to get the same base you have for the robot, but needed to drill some holes to attach the optical rotation sensors. To try and reduce complexity I am wiring the motor power directly to the ESP Dev Module which has an onboard voltage regulator. I then use the 3.3V from the ESP32 to drive the optical sensors etc. This may have some issues down the line, but worth a shot to reduce the number of modules.
Wow! You said it took a while, and it's not hard to see why. This project is fantastic. I've been working on something a little bit similar using an Espruino 1.4, but I didn't know about Mecanum Wheels, and oh boy will they solve some problems.
Will your final solution involve proximity sensors? I'm trying to develop a device that senses and learns about it's environment (using proximity sensors and counting stepper motor rotations), and stores a plan of where it can go (and where it cannot), so that it can subsequently navigate autonomously. Strategically placed QR codes seem to be necessary to recalibrate position from time to time (to allow for wheel slip).
You only need the caps for the 8mm neopixels if you're stringing over 20 or so. If you use a teensy 4.1 to drive them you don't need caps for any of them.
Super Project ! Very well explan !
This is such a fantastic tutorial and very detailed yet easy to follow, very keen to dive into the code and give this a try with my mecanum robot kit and esp32 module.
I have a larger touch screen and raspberry pi zero W that I might try to create a controller with camera feed based on some of your work
I always learn on two different levels from your videos: The first is the subject material itself, and the second is how to present and explain technical concepts -- you're extremely good at both. Thanks for all your great work!
Hello! We are from Ukraine. Is it possible to make an mp3 player based on the esp 32 cam chip? It is necessary to implement access to the sd to delete and add mp3 files. It is very necessary to implement. Thanks for the tips !
One difference I would make is to use rgb leds with 6 pins, 6 independent LEDs. Then you van wire one across the motor in one polarity wirh current limiting resistor, one the other way, and yhe third perhaps across a bridge rectifier on the motor so that when either direction is energized the LED lights. No code to add those features.
Have not checked your content since a while. I wanted to ask what happened to that DB1 robot. Guess you named that DB1
Love the combo of EspNow and robots.
Bill you have done a fantastic job. Very interesting on all design aspects. So detailed, your code was done very well. Completely commented. A+ grade.
Wow, lots of info here... I think it'll take a couple+ times to absorb all that you packed into this video. Certainly tons of work and elements that can be leveraged into other projects as well
Mecanum Wheel Robot Car & ESP-NOW Remote .Using Arduino v1.8.19 .
Sketch "getmac" workes .Verify Sketch "4wd-test",get a error .
Line 61 { analogWrite(MF_PWMA, speed_slow); }
ERROR ERROR [analogwrite was not declared in this scope]
What have I mist.Can you hellp?
Had the same. Cure found in internet. Replace every occurrence in the code of "analogWrite" with "ledcWrite" .
The code will then compile and work correctly. At least it did for me.
@@horamflyers3839 thank you
Wow, this is so impressive and really easy to follow for an old timer like me. I've never built anything like this before although a novice with ESP32's etc. This is a must do project. Many thanks.
Bill,
I want to express my great appreciation for this project. I just got done building my own ESP32 RC car. Your power pack design for this car helped me improve the battery pack so that I only needed a single battery pack instead of two. I was not aware of the neopixel package that you used on your car until watching this video. Thank you for making me aware of that. I cut 4 WS2812B LEDs off of a strip and soldered extension wires between for my neopixels. Your approach required less tricky soldering. I really enjoyed seeing the mecanum wheels in action. I can tell how much work you put into this project. You did a fantastic job explaining it. Thank you so much!
Where can I find this code ? Please help
Can you send a link to buy this kit please!
In case you have not already done so, could you please tell us the supplier and part numbers of the frame, wheels, and motors you used for this project?
As always a great video. Thank you very much for sharing your knowledge.
Great project. I just ordered a kit to try this one myself. Thanks!
Very, very good work! Just looking now for the materials to make my own
this project was really cool ,
thankyou very much ,
I really learnt lot
great video, never hear of menanum wheel, great explaine, easy to understand, thx
i found a toy rc car without control but with these wheels in a thrift store(+ lipo battery included) so this is my new project for the week. thanks for the excellent job explaining how it works
Hi, I wanted to ask what softwares I can use to design a circuit board (on a Mac).
Great video! Just started my own project with a mecanum wheel robot 👍
Thank you, Winter just started and this time of year i do more within this hobby.
Neo pixel is a brand name of Adafruit. Just call these addressable LEDs. Adafruit branded products have NOTHING special, it’s just marketing fog.
I agree that it is good to know that you can interchange many different and cheaper addressable WS2812b leds. That said, it is really good to support Adafruit when you can afford it. Their solid breakout boards, great tutorials , support, and excellent libraries allow you to get a new chip or module up and running very fast.
Thank you! Great work.
Cool project and excellent prepared video! Seems to be a lot of effort behind it.
Great video,I loved it. I will now have to buy all the parts to build it.
Very nice thank you
tua mulher ali rrrakinho
Where did you get your kit?
Excellent presentation, Thanks sir.
time machine?👨❤💋👨👩❤👨
Brilliant project! Thank you for sharing it!
Great job!
👍🏻what a great job! Kudos 🙏🏻
Great work!