Wow thats a very cool project and a very expensive way to manage spare parts around the table but why not. I totally loved the idea to have some sort of electromagnetig finger instead of a clasic mechanic claw. Congrats!
hi, this is excelent. Thank you for the showing that job. Could you please share or prepare a full system video for this? Or could you share the references which you got information to build this system
Nice man, I had doubts about using rapsberry pi to control servos but your robot gave me some ideas about how to make it. Now i need to control a 5 DOF arm robot with NEMA motors
what the hell, man. this project is the most awesome project of robotics in youtube. i have been tailing all robotics projects in youtube, and this is the BEST. it offers the simplest ever way, to learn CV robotics. why do u stop doing this project, man. u should make similar projects to this one!
nice to hear that, man! i have been tailing all CV robotics projects in youtube for 2 years, but i didnt have courage to start, because they were all so complicated. this one is the simplest ever. and it even has many real life applications, further encouraging people to learn, coz this is useful. these dats, i am starting to learn robotics, by learning raspberry and CV because of you, man!
hey man, maybe you should take a look at SimpleCV. it will make your coding much easier, and will expand your projects possibilities. looking forward for your similar projects!
Hey Vijay! Thanks for the comment! Here's some explanations about the thing: robotshop.com/letsmakerobots/raspberry-pi-robot-arm-with-simple-computer-vision It's not much. But maybe you're interested.
Hello Friend, how are you? I am a Brazilian research student and I am doing a similar project. Can you explain me how you made the connection between the Raspberry and the robotic arm?
I am working on a trash bot,which recognises trash using video processing,which processor will be compatible for video and image processing,iam trying to keep my budget as low as possible,so can u recommend me any less expensive processor,thanks
Pretty awesome!, Hi Tobias, I am making as well a robotic arm with 4DOF, I have a question. Its available using your library Json?, if you could supply it to me. Also if the other library Ax12 is able for using with a TowerPro MG995?
Hi Andres, Thanks! I am afraid the Ax12 library and the code I wrote can not directly be used with TowerPro MG995 servos. The Dynamixel AX12 servos are smart servos. They recieve instructions via serial bus. On the other hand, as I am sure you are aware of, the TowerPro MG995 servos use a PWM signal as input signal.
Great project. I can see from the video that you assigned ID 3 to the wrist, ID 2 to the elbow, and ID 1 to the shoulder. What ID did you assign to the base please. Since the number is hidden, I can't tell. Was it assigned ID zero?
Yeah, there's not enough current flow provided by the GPIO to power the electromagnet directly. I used a power transistor, but a relay would of course also work.
Here's some more infos: robotshop.com/letsmakerobots/raspberry-pi-robot-arm-with-simple-computer-vision and the source code: github.com/T-Kuhn/ScrewPicker
Hey! Here's a blog post about this project (if you haven't read it already): electrondust.com/2017/10/28/raspberry-pi-robot-arm-with-simple-computer-vision/ I can answer your questions if you want. It took me about 3 months in total I think. I was working on weekends on it.
Hello, nice video, started looking into this for my raspberry pi as i am tired of programming with them. Do you think it is possible to just get a robotic arm and integrate some coding into it instead of building the arm from scratch? Thanks
Hey, thanks! Sure! Just be careful when choosing the arm. If the thing isn't providing any feedback on motor positions it will be hard to get it to move the way you want it to move.
Hello, I hope that you askme my question, i have some dynamixel, but 2 have the led in red color and when I try moved this dont work, the others had the led in green color and work, my question is, why the led changed to red and dont work?, sorry for my english, I hope you understandme 😔
Hi, Is your LED blinking red? If so, that means there was an alarm. You can figure out what kind of alarm it is by reading the 1-byte size error register at address 18.
The image processing is the bottle neck when it comes to performance. Assuming that the processing load could be distributed evenly among the pis I see no reason not to think that it would speed it up. I never worked with a pi-cluster, so I am not clear on what conditions need to be met for the processing load to be distributed successfully among the pis. Image processing might not be as suitable (because not as easily attributable) as other forms of data processing.
I used a regular PC to program it. Your MacBook Pro 2013 will work just fine. I programmed it by opening an ssh connection to the raspberry pi. But you also could edit the python files on your main machine and then just transfer them via WinSCP (or a similar software for mac.)
I am sorry to tell you that there is no tutorial. I should write one. There is some more info here: robotshop.com/letsmakerobots/raspberry-pi-robot-arm-with-simple-computer-vision But it's not a tutorial.
I guess the system knows about the x and y of the camera, so the vision system identify the x, y relative to the camera. Know transforming these coordenates relative to the base frame the system would be able to reach that point. But I'm just guessing.
Hello AUSSIE LAW, I used Python. I wrote my own libraries for image processing and smooth moving. But I did however use several other libraries including: - picamera - ax12 - spidev Here's the source code: github.com/T-Kuhn/ScrewPicker
You can. But you probably won't be able to get it to move as smoothly as in the video with cheap servos. But depending on the servo, you should be able to get fairly close.
Dear Tobias Kuhn, In those videos only can see, how it is working. if you can give any link address(video) having all steps that how to make this from starting to end, will be helpful for me.
I am sorry to tell you that there is no tutorial. I should write one. There is some more info here: robotshop.com/letsmakerobots/raspberry-pi-robot-arm-with-simple-computer-vision But it's not a tutorial.
Hello supra! Yes, I used it to test some of the movements while programming the thing. I posted a link to the sourcecode in the description of this video. There's still no schematic. But maybe I could draw one if you would find it helpful.
Hey bro, really nice work with the whole project, I was wondering if you could help me I'm thinking of integrating this whole project into an autonomous moving robotic arm which could pick stuff can u tell me what problems I can ran into while doing that cause I will edit and use Ur python code for pick and place and one more thing if I some how make this work do u think image back ground will be a problem for object detection cause the surface will change as robot moves. Pls looking forward for your reply thank you !
It takes a photo with the camera and then applies some algorithms to the image data. In the end it gets the center of the object, it then just counts the pixels to that center (x and y) to see how far the arm needs to go.
Hello Sakibul Azam, I actually don't know. I only used very simple Image Processing algorithms. That's why I wrote them by my own instead of using something like OpenCV. If you want to make something with a Raspberry Pi I highly recommend learning Python. Since it goes very well with the Raspberry Pi camera module.
wow...it's too gr8 project sir..i am also doing same project but with tower pro mg995 servos.does it need extra library?...i also want to kno what are those pixel algorithms that u used..i really need your help.can u plz guide me doing this??i can give u my email address ..i m just waiting for your response sir..plz
großartig :) Ich nehme an du verwendest für deine Konstruktionen all die günstigen Bestandteile die in den letzten Jahren so Populär geworden sind, wie z.B. Raspberry Pi. Wie hoch sind denn die Materialkosten für den Arm den du gebaut hast? Ich spiele seit einiger Zeit mit der Idee meinem Vater, den Besitzer einer Eisdiele, als "proof of Concept" einen günstig produzierten Arm vorzulegen, der auf Kundeneingabe hin, voll automatisch, mit der Spachtel das Eis aus der Vitrine nimmt und in die Waffel führt. Ich hatte dabei natürlich all die coolen Robotik Projekte im Kopf die seit dem Zeitalter von Kickstarter, Pi und RU-vid durch das Internet geistern. Nur bin ich in dem Bereich nicht sonderlich erfahren und versuche nun auf diesem Wege zu erfahren wie realistisch und wie leicht umsetzbar meine Idee ist.
Der Arm im Video besteht im wesentlichen aus 5 Servos, 1 Raspberry Pi und Kleinkram. Materialkosten sind in etwa wie folgt: - Raspberry Pi 2 40 Euro x1 - Dynamixel AX-12A (das sind die Servos) 40 Euro x5 - Kleinkram 50 Eur Alles in allem etwas über 300 Euro, denke ich. Ich habe die Teile nicht in Euro gekauft. Vielleicht liege ich mit den Preisen ein wenig daneben. Allerdings wäre der Roboter Arm im Video kein guter Eisdielen-Gehilfe. Das Problem ist Power. Der Raspberry Pi Arm kann kaum mehr als 90g hochhieven (das gute alte Hebelgesetz). Du bräuchtest Motoron von grösserem Kaliber um das Eis aus der Vitrine kratzen zu können.
I used Python. You could also use C++. But Python seemed to be the better choice because there's a really good library for the Raspberry Pi Camera module. With that library, getting pixel data from the camera is really easy.
Tobias Kuhn wow. I start to see artificial vision with matlab. so, I'm watching any vidios for make me one idea that how i can do one project. Artificial vision sounds good. thanks a lot for your videos.
