Arduino Robot Hand - for under $300 complete 

I love how the big bang theory is playing in the background :) I usually put it on too when playing with my arduino :p

thats amazing it moves so smoothly ..its like watching da vinci work

Thx so much Peter, my friend and I r going to make a robot hand for a project and we needed ideas and we got them from u! Thx

wow, one of the better home made out there. Good Job

Beautiful work :)

Sheldon likes the blue jay

Sooo cool! ^^, Thank u for sharing this :)

How do you connect the servos to the Arduino? Do they need an extra battery to work or something? When I connect mine with a 9V battery connected to the Arduino, they don't move how they should. Any idea? Thanks :)

what are the mechanical equipment u have used for jointing the fingers? it would be a great help if u can tell me the models of those metal things in the finger.

wow! amazing! but how do u pull back the fingers? are those rubber bands??

are those micro servos and how much torque do they have? also are you using flex sensors or how is it controlled

thankyou for sharing this project, its very useful information . thank you again

how did you make the fingers

great work

Very Good!

Bravo Bro!!!

Hi, may I know where did you buy the think bands/strings (attached at the back of the fingers)?

Great job

REALLY cool project dude!!!! Nice!! =)

Oh and one more question, have you used the same hinges from top to bottom? (Meaning.. Would will these hinges be having same stiffness from top to bottom?)

Simple and great GOOD JOB

wow! very impressive!

What type of motor did you use for the fingers? I've been looking for one to use, and was it remote control? Thx

Nice...did you try to learn him guitar chords ?

that's awsome!

Looking at the thumb, i see that ypu are using 2 servos for it, i see one driving a cord to contract the finger but i cant see how you are driving the rotation with the second servo. How are you doing this?

Hello! I´m working on a similar project. Is the distance at which the servo is placed important? Or the lever arm is only given by the piece on the servo arrow? Thank you fo your support.

can you tell me the code to just move the servos 180 degrees in one motion

What are the specifications of the servo used?

Hi Peter, thank's for answer me.I have another question. How did put the black bands on the hand?

Now that is good programming, and its extremely lifelike a few more mods and he'd have a whole arm

I'm curious...did you attempt any strength testing with this? I'm working on a similar project, and I was trying to figure out if the string design would hold up under stress.

Directed by Me was super👌

Excellent and beatiful

Hi Peter. Would I like to know if you used in the joints, pulleys or springs ?

Peter Ohlmus, sir can u tell me what maximale mass can be supported by the upper and lower face of your HandRobot? ( 1kg? ...). Secondly i also want to know, if it just need 9V to be powered ?

Cool.

Nice work Peter! Question: What are you using to make the fingers go back to the rest position? You have a dark thin material glued to the other side of each finger… Thanks.

What glue did you use?

Awesome what you did here !! but if lay down your hand like this and try only to move your ringfinger then see what moves with

Hi! im a 10th grade student working with Ardinos for a programming and making class and want to do this for my final project (i think its super cool). I was wondering, did you just update the single servo code to incorporate multiple servos or type a different code entirely? Also, so you used push buttons, is that the easiest way to control the servos or would something like the flex sensor be easier to control it with. sorry for the dumb questions but its a new course and its tricky to go too far outside the box without getting stuck as every ones knowledge of the material is limited. thanks!

Thanks Amby! I'm working on V2 at the moment - muuuuuch better than V1, although I still like the original! :)

what value resistors did you use for the buttons ? thx

Hi Peter, First, great work and design. Could you tell me from finger tip to palm, the sizes that you cut for each section. Thanks would appreciate it. Cheers

what kind of wood did you use? or what is that kind of stick? where did you buy it?

How did you connect all the servos to the arduino?

Very very cool did you really chop up 14 tea strainers for the knuckle joints

Hello. Really nice hand. I would just like to know how you wired the buttons to the Arduino board. Thanks

unless you're using expensive servos i can't imagine this build cost much over $100, great design :D

Hi Peter, Best project! Question: -It's possible to adapt this project for using EMG signal to control servo motor? If yes, how can I do it? -In your project, have you use any sensor? Thank

your proyect its amazing!! im making one for my school, what is the torque of the servos? i want to know how strong are they so i dont buy the wrong ones. thanks

which servo did you use here? I meant the model number?

Hello, what is the torque of the motor ?

What material did you used for the return?

Hey I have a question again, did you use a shield over the arduino to connect the servos?

Hello What is the system you used in the programming board Arduino Is is possible to use the plate test board and is a method of connecting wires Does using any type of servo motor.

Hi peter. great job! I'm new with arduino. i was wondering if it is possible to get the code. thank you so much

sir i need your help to make this project in a better way in my final year project.

hello what source of power do you use for all 5 motors?

I find it amusing that the big bang theory is playing in the background

What material did you use for the wires in the hand? Thank you

nice

Where did you get the hinges from? Thanks.

mantaap MESIN UNDIP, sangat kreatif dan inovatif !!! teruslah berkarya dengan menciptakan karya yang berguna bagi masyarakat, negara hingga dunia !!! GOOD LUCK !!!

man you are just like me doing project with big bang theory episode :D

Fantstic The arduino part I can understand. What did you use for the finger? How did you hinge the didgets together so that they sprung back? Thank in advance for tips!

cool really

Wow😮

Hi Peter, First, The project is very amazing, I love it. Fingers move it too quickly. I watched a lot of videos but I see a fast-moving fingers first time. it's very nice.:)) Secondly, If I want to do this project without the arduino, I can?(for thesis) :)) Thank you.

Hey Peter, if possible, I would like to get some advice from you for building these hands. I see that you have used the hinges here, so my question is, (if these hinges act as a torsional spring) what would be their stiffness from top to bottom. Any comments will be appreciated, thanks.

hello do you have a code of a robotic hand that minics the movements of a glove with flexible sensors , please .

faszinierend

great job! if you paint it a silver colour it would look like the Arnold's hand from the Terminator movie

hello i find you do a very nice job great

hello Peter, do you still have the schematic diagram of your project? we are interested on using your project as our school project this semester and we don't know how to connect the servos to the arduino. we are amazed with this project. thank you

Hello. Do you have the code for the left hand? Your project is awesome! Thanks for sharing :-)

Hi Michael, the code to move servos 180 degrees is actually pretty easy. There's plenty of websites and forums with examples, and the Arduino IDE has sample sketches that you can alter to suit your needs. If you're interested in the code, let me know and I can send it your way. Cheers!

and whatching the big bang theory rsrsrs

Sir can you tell me the code for Arduino?

Can I get a list of the materials that you used? Thanks!

from which material did you made the fingers

can you plz send me details of this project....

Wow

WHERE ARE THE CODES SOMEONE PLEASE HELP 🙏🏻

thar is amazing

hello peter ive succesfully built a hand i just really need to learn how to make an opening and closing code

What would happen if you had more expensive servos with stronger gears and more power? Would it be possible to say, crush a pop can?

Hi Peter, your work is really interesting! I'm developing the same project: in my case it's a myoelectric hand, but it's guided by 2 stepper motor. I'd like to ask you if you've tried also this kind of motor coupled with gear instead of cables, due to their precision.

Hello sir.Can you please tell me all the materials that you use?please sir.

Did you use C++ to program the arm?

hi there! My research group is working on a similar project, would it be possible to be added to your shared dropbox folder for some reference! Thanks :)

can u plz tell me how did u connect the finger bits plz

cool, i hv build a robot with the same concept like 10 years ago for my diploma final project. looks like my idea came up first lol.

can you post a video on how the movement of fingers is happening by pulling wire using servos.Thank you in advance.

excellent, i have been wondering who was pulling all the strings around here

Thanks Peter . I'll use this méthode. However if you have any other hinge idea let me know. :-)

** THE CODE IS HERE ** THE CODE IS HERE ** THE CODE IS HERE ** Hi all, below is the code I wrote (with some useful comments) for the hand. There are several functions that are triggered by button presses. Any questions, let me know! Cheers, Pete. ======================================================= #include // Below are the 4 functions - mapped to 4 buttons: int buttonPinA = 13; // Open and close all fingers and thumb - quick grip int buttonPinB = 12; // Move each finger then thumb independently - // demonstrate dexterity int buttonPinC = 7; // Move multiple fingers at the same time, pointer and // thumb pinch, pinky and thumb pinch int buttonPinD = 2; // Open and close all fingers and thumb - sustained grip Servo myservo1; // Finger1(pinky) Servo myservo2; // Finger2 Servo myservo3; // Finger3 Servo myservo4; // Finger4(pointer) Servo myservo5; // Thumb(swivel up) Servo myservo6; // Thumb (close) int pos1 = 0; int pos2 = 0; int pos3 = 0; int pos4 = 0; void setup() { pinMode(buttonPinA, INPUT); pinMode(buttonPinB, INPUT); pinMode(buttonPinC, INPUT); pinMode(buttonPinD, INPUT); myservo1.attach(11); myservo2.attach(10); myservo3.attach(9); myservo4.attach(6); myservo5.attach(5); myservo6.attach(3); } void loop() { // ---------------------------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------------------------- // Pin A: Open and close all fingers and thumb - grip // ---------------------------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------------------------- if(digitalRead(buttonPinA) == HIGH) { for(pos1 = 0, pos2 = 220; pos1 =0; pos1 += 1, pos2 -=1) { myservo1.write(pos1); // Finger1(pinky) myservo2.write(pos1); // Finger2 myservo3.write(pos1); // Finger3 myservo4.write(pos2); // Finger4(pointer) delay(2); if(pos1 = 130) { myservo6.write(pos2); // Thumb (close) } delay(5); } for(pos1 = 220, pos2 =0, pos3 = 130; pos1 >=0, pos2 =0; pos1 -=1) { myservo3.write(pos1); // Finger3 delay(5); } // Close Finger4 for(pos1 = 220; pos1 >=0; pos1 -= 1) { myservo4.write(pos1); // Finger3 delay(5); } // Open Finger4 for(pos1 = 0; pos1 =110; pos1 +=1, pos2 -=1) { if(pos1 < 70) myservo5.write(pos1); // Thumb(swivel up) delay(5); if(pos2 > 109) myservo6.write(pos2); // Thumb (close) delay(5); } // Open Thumb for(pos1 = 70, pos2 = 110; pos2 < 221; pos1 -=1, pos2 +=1) { if(pos1 > 0) myservo5.write(pos1); // Thumb(swivel up) delay(10); if(pos2 < 221) pos2 +=1; myservo6.write(pos2); // Thumb (close) delay(10); } // Close Finger1 for(pos1 = 0; pos1 < 220; pos1 += 1) { myservo1.write(pos1); // Finger1(pinky) delay(1); } // Open Finger1 for(pos1 = 220; pos1 >=0; pos1 -=1) { myservo1.write(pos1); // Finger1(pinky) delay(1); } // Close Finger2 for(pos1 = 0; pos1 < 220; pos1 += 1) { myservo2.write(pos1); // Finger2 delay(1); } // Open Finger2 for(pos1 = 220; pos1 >=0; pos1 -=1) { myservo2.write(pos1); // Finger2 delay(1); } // Close Finger3 for(pos1 = 0; pos1 < 220; pos1 += 1) { myservo3.write(pos1); // Finger3 delay(1); } // Open Finger3 for(pos1 = 220; pos1 >=0; pos1 -=1) { myservo3.write(pos1); // Finger3 delay(1); } // Close Finger4 for(pos1 = 220; pos1 >=0; pos1 -= 1) { myservo4.write(pos1); // Finger3 delay(1); } // Open Finger4 for(pos1 = 0; pos1 =110; pos1 +=1, pos2 -=1) { if(pos1 < 70) myservo5.write(pos1); // Thumb(swivel up) delay(1); if(pos2 > 109) myservo6.write(pos2); // Thumb (close) delay(1); } // Open Thumb for(pos1 = 70, pos2 = 110; pos2 < 221; pos1 -=1, pos2 +=1) { if(pos1 > 0) myservo5.write(pos1); // Thumb(swivel up) delay(3); if(pos2 < 221) pos2 +=1; myservo6.write(pos2); // Thumb (close) delay(3); } // Open and Close fingers and thumb quickly and alternately for(pos1 = 0, pos2 = 220; pos1 < 220; pos1 += 1, pos2 -=1) { myservo1.write(pos1); // Finger1(pinky) myservo2.write(pos2); // Finger2 myservo3.write(pos1); // Finger3 myservo4.write(pos1); // Finger4 delay(5); } // Open Finger1 and Finger2 for(pos1 = 220, pos2 = 0; pos1 >=0; pos1 -=1, pos2 +=1) { myservo1.write(pos1); // Finger1(pinky) myservo2.write(pos2); // Finger2 myservo3.write(pos1); // Finger3 myservo4.write(pos1); // Finger4 delay(5); } myservo2.write(pos1); myservo4.write(pos2); } // ---------------------------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------------------------- // Pin C: Move multiple fingers at the same time, pointer and thumb pinch, pinky // and thumb pinch - slowly then quickly // ---------------------------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------------------------- if(digitalRead(buttonPinC) == HIGH) { // Close Finger1 and Finger2 for(pos1 = 0; pos1 < 220; pos1 += 1) { myservo1.write(pos1); // Finger1(pinky) myservo2.write(pos1); // Finger2 delay(5); } // Open Finger1 and Finger2 for(pos1 = 220; pos1 >=0; pos1 -=1) { myservo1.write(pos1); // Finger1(pinky) myservo2.write(pos1); // Finger2 delay(5); } // Close Finger3 and Finger4 for(pos1 = 0, pos2 = 220; pos1 < 220, pos2 >0; pos1 += 1, pos2 -=1) { myservo3.write(pos1); // Finger3 myservo4.write(pos2); // Finger4 delay(5); } // Open Finger3 and Finger4 for(pos1 = 220, pos2 = 0; pos1 >0, pos2 0; pos1 += 1, pos2 -=1) { myservo1.write(pos1); // Finger3 myservo4.write(pos2); // Finger4 delay(5); } // Open Finger1 and Finger4 for(pos1 = 220, pos2 = 0; pos1 >0, pos2 =0; pos1 -=1) { myservo2.write(pos1); // Finger2 myservo3.write(pos1); // Finger3 delay(5); } // Close Finger1 and Thumb for(pos1 = 0, pos2 = 220; pos1 =0; pos1 += 1, pos2 -=1) { myservo1.write(pos1); // Finger1(pinky) delay(2); if(pos1 = 130) { myservo6.write(pos2); // Thumb (close) } delay(5); } // Open Finger1 and Thumb for(pos1 = 220, pos2 =0, pos3 = 130; pos1 >=0, pos2 =0; pos1 -=1) { myservo1.write(pos1); // Finger2 myservo3.write(pos1); // Finger3 delay(2); } // Close Finger2 and Finger4 for(pos1 = 0, pos2 = 220; pos1 < 220, pos2 >0; pos1 += 1, pos2 -=1) { myservo2.write(pos1); // Finger2 myservo4.write(pos2); // Finger3 delay(2); } // Open Finger2 and Finger4 for(pos1 = 220, pos2 = 0; pos1 >0, pos2 =0, pos2

+ Pedro Ohlmus quisiera saber los materiales que usados para para hacer las manos

how did you make it can you give us a video on how to do it please

Bro could you share the 3d file