MyoWare Servo Tutorial - EMG Arduino Circuit

First video.
Tutorial I made since I had a bit of trouble with the MyoWare.

[@sebastiank4963]

Hey man u r the reason why my science fair project worked this year. I could not fin anyone who could make it work and ur videos heled my so much. Mad respect to u man

[@elasnodireito1399]

More complete tutorial of KZbin!! Thanks for everything

[@bilalq3]

Excellent video Frank! Looking forward to seeing more from your channel.

[@savetheworldology]

Awesome tutorial. I might have to grab one of these for the Inmoov robotic hand and forearm I am printing. Nice one, thanks for sharing. :)

[@abdalkadershuker]

that was awesome dude, great job

[@wilsonpimentel9192]

great job it also works for muscle sensor v3.

[@mirmuneebullah927]

Hey Frank.i experiencing an issue with my myoware sensor.it works fine in beginning but after a while it gives random high values like 150 200 and sometimes even 600.what should i do?

[@jasonli4547]

It seems there is a significant delay of the servo motion reaction to the EMG signal. Is there any method to solve this problem?

[@sebastiank4963]

How would this be set up with a ardiino nano im super new to this stuff and have not found much help

[@vishwasdevagiri2043]

Thank u so much frank for all ur help ...ur video helped me a lot ...

[@Frank-yb4zd]

hey, do you think you can skype me the picture of the hand that you made?

[@ozoozo3301]

Awesome work

[@maikucream]

Nice video! Greetings from Mexico!

[@arbolitos]

Awesome video, thank you!!

[@rzv5059]

Where can i get those electrodes and exctaly those batteries ?

[@akshayjose6555]

Here MyoWare sensor only gives on & off right. Is it possible to rotate the servo or stepper step by step. I think you understand what i'm saying. I'm thinking about making an accurate muscle analyzing device that captures hand movements too. so what do you say...

[@Lina-nm6jd]

Hi, I purchased a myoware muscle sensor 6 months ago, I'm only trying it now, I don't have a battery yet, but when I plug the arduino onto the laptop, even though the Arduino is powered and the power led is on, the myoware led isn't, does it only turn on if I plug the battery onto the arduino? or is my sensor not working? Thank you

[@juanmiguelfranco7085]

Hello, i have a question. I need to do the same project for a 3d-printed hand like in your other video, but with at least 3 degree of freedom, any ideas with the servo motors? How can i use 2 more servomotors for other motion types? Thank you!!

[@richrizo1515]

hi , i want graph this signal, but it have noisy, how can fix it?

[@jayyazji9819]

Frank, don’t know if this has been asked before but have you or do you know of someone who has used the myoware sensor with remote electrodes? We have been trying to use it with those but without much success, it has been acting very “finicky”. Any help is appreciated.

[@Max_Bio]

is there a MyoWare circuit diagram?

[@derekshaon9172]

How to you add more servo motors

[@guilhemmathieux8325]

great video but how high can the value of the myoware go ? I could'nt find this info anywere

[@dancccp]

Awesome Tutorial! How were you able to determine your threshold value from the myoware device?

[@Frank-yb4zd]

with a similar code but hooked up to an LED. I would just start at low threshold and raise it up until I was able to manipulate the LED fairly easily

[@rayopaw9220]

how can i attach 3 servos to different sections of a muscle to make them move individually depending on the muscle movement?

[@jayantabanik2751]

Rayopaw you'll have to use 3 muscle sensors or code for 3 different range of values .. so that'll help on the intensity of you muscle clunch

[@temoherbert172]

my sensor does not even turn on when connected to the Arduino, what's the problem?, i need your help Frank

[@pyrovs8606]

would i be able to attach this to my forearm/wrist to variably control the servo?

[@muznataj5453]

Thanks for the video, but how did you got the 250 value for the muscle? If i want to view the result on the monitor using Arduino how to achieve that?

[@Frank-yb4zd]

Muzna Taj I'm not too sure how to display the value on a monitor, but I used an LCD display as seen in one of my previous videos to read the values. An easier way to do it is just to hook up the sensor to an LED and just adjust the value until you can manipulate the LED easily.

[@DoUKnowMee]

How to increase the speed of servo motor

[@EkoPrasetyo-pv1ti]

what is the value of output from muscle sensor? there is a digital value or analog? can u explain to me, i am very grateful for it. Thank you so much.

[@samahfalah4851]

good job .... I have a question ...how far do you know about the this sensor? ..I'm facing a technical issue ..it's working but it is not sensing ..its signal is constant ..any suggestion ?

[@Frank-yb4zd]

what do you mean by "it's working but not sensing"

[@digbijaygogoiofficial]

I need a help. Is there any way that I could control the speed of the servo along with my muscle movement. Like if I lift my hand slowly the servo rotates slowly .

[@aarjavkhara3534]

Have you tried using an accelerometer? It might come in handy but it seems a bit overkill for this purpose.

[@rajkumars962]

Sir, i'm doing my project on this topic and ineed to controll each finger using 5 servos. can you help me coding the arduino ???

[@rzv5059]

how to do it for 5 servos ?

[@khara8742]

how do you find out the threshvalue

[@umairm.5662]

How did he find out his threshvalue

[@muhammadfirdauz1375]

frank, what if i want to use 2 servo motor?

[@aizatmustazar712]

heelo frank. ive already build the same circuit and same coding u given but im using different type of motor. im using analog motor and it keep rotating everytime. how can i fix it?

[@Frank-yb4zd]

aizat mustazar some other motors cannot understand the directions that are meant to be given to servos

[@eng-con]

good 👍

[@OscarGomez-fh6tl]

Hello Frank, excellent tutorial! You could please comment the code step by step? many thanks I would be of great help.

[@JMAGG]

Can I use the arduino lilypad Pro with a 3.7 volt battery instead of the UNO? Thanks

[@Frank-yb4zd]

+Jmagg2234 the lilypad will work with the myoware but 3.7 volts may be too low depending on your servo. Look at the recommended input voltage for your servo.

[@Frank-yb4zd]

+Jmagg2234 Also, to power the MyoWare i use 3.3v

[@JMAGG]

+Frank (Frankybuilds) ok, thanks for getting back to me. and where do you hook the leads from the myoware to on the lilypad? do I just hook the positive to where the battery goes into the lilypad board and the same for the negative? then the SIG to a3? thanks again for your help

[@Frank-yb4zd]

+Jmagg2234 that sounds like it would work. look up iron man myoware, they used a lilypad

[@cpc123ify]

amazing

[@Frank-yb4zd]

Cory Crubaugh thank you!

[@MegaNinjaJesus]

Could this sensor detect the muscle movement of someone who is partially paralyzed, who can't fully flex the arm?

[@Frank-yb4zd]

I can't give you a sure answer, but when u lower the thresh value the sensor can become extremely sensitive so i would think it would work on a partially paralyzed muscle

[@MegaNinjaJesus]

Okay, thanks, I was looking into building a assistive exoskeleton for a friend.

[@fauzanazim1374]

can i use analog servo motor with this coding?

[@zpmproduction]

Do they both go in the same ground?

[@TheGeekTechZone]

Hi frank, My myoware always has the red led sig light on and it rarely turns off (valuse do not change when I flex) what could be the problem?

[@Frank-yb4zd]

alot of things... Is power in 3.3v? signal in a signal pin? negative to ground? is the PCB damaged? is your code correct? I remember that I had the same problem when something was wired incorrectly. alsoooo there is also a little potentiometer like knob on the PCB that can be adjusted

[@TheGeekTechZone]

yes, I have + to 3.3v, - to ground, sig to A0, I just bought the jumper cables, I havent messed around with the potentiometer and I'm using reusable electrodes that do not stick to the skin so I'm testing it out with tape or buy holding down, do I need some sort of gel for the electrodes?

[@Frank-yb4zd]

+GeekTechZone try taking off the electrodes and lay the myoware on a plastic surface. I didn't use any gel but the ones I used were the sticky 3M ones

[@jayantabanik2751]

You might have already tried these .. but still... 2 electodes will be along the length of muscle you want to use and 3rd one on any other muscle far from these two..

[@zineb8465]

hi, i'm.looking for the same way to build an eeg circuit based on arduino, any help please :D

[@thealexeddie]

is it possible to use a lot of EMG sensor integrated, one in each finger's muscle to control a robot hand?

[@Frank-yb4zd]

Alex Sandro I'm sure it is, although it may be very tricky. you would probably have to write code to calibrate each finger

[@thealexeddie]

I got it...I am an electronic engineering student...and probably me and my group will do it for a final work...thank you for your advice.

[@Frank-yb4zd]

Alex Sandro kzbin.info/www/bejne/ZpbSeHqgbrh3m6c you may find this interesting

[@mirmuneebullah927]

really interesting.how can i run more then one servo motor using myo sensor?

[@Frank-yb4zd]

mir muneeb Ullah just by connecting multiple servos to different signal pins and altering the code to account for those extra servos. you cannot achieve full articulation with one MyoWare sensor

[@mirmuneebullah927]

ok thats great..i was planning to build a rehabilitative glove which would move all fingers with help of cables attched to servos, together as some muscle is flexed..is it doable with one myoware?

[@jihedjaouabi7623]

Thanks for share, btw, can this sensor give different signals? I mean if I want to use is as a controller, does it differentiate between moving fingers etc?

[@Frank-yb4zd]

I've experimented with that and it's possible with multiple myowares.(respective to each finger)

[@Frank-yb4zd]

If your looking for something in that field, look up Hacker Hand by backyard brains

[@jihedjaouabi7623]

Thanks for the useful link! I see that it requires a lot of emg sensors as well.. I want to make a wearable that can be easily removed like MYO.. I will see what couple of MyoWare gives as a result.

[@minhajansari8272]

Do we need to provide power to it , or can it work on power provided by the computer? And how did you know the voltage power supply needed to run this project?

[@Frank-yb4zd]

Minhaj Ansari you can use the power from the computer with smaller servos. For larger high torque ones like the one I used, you'll need a bit more power.

[@minhajansari8272]

Ah alright! thanks, bud :) Also, the surface electrodes being used, I read that they can only be used once. Is this true? That'll be a real bummer, I'll have to buy many electrodes for my project, in case I mess up in my first few tries.

[@muhammadfirdauz1375]

Hai Frank, i paste the coding in IDE but got error

[@arnopierini8530]

hello what is list detailing of component please

[@elektrozil9728]

The whole first 2 minutes is a detailed list. I think? I could be wrong tho..Or just go to SparkFun.com

[@temoherbert172]

Hey frank, i using 5 mini-servo motors tower pro, with a battery pack of 9.6 V and 1000 mAh is the hand can work or no?

[@Frank-yb4zd]

Temo Herbert I think the hand would work, but you would have to make a custom forearm to securely fit the servos

[@Frank-yb4zd]

Temo Herbert also, I would not advise connecting the 9.6 directly to the mini servos. make sure you feed the servos an appropriate amount of voltage

[@temoherbert172]

That you recommend me to distribute well the battery power to the 5 mini servo motors

[@imranspeaking]

Arduino: 1.6.11 (Windows 10), Board: "Arduino/Genuino Uno" myo_ware:21: error: stray '\357' in program } ^ myo_ware:21: error: stray '\273' in program myo_ware:21: error: stray '\277' in program exit status 1 stray '\357' in program This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences. does not compile and shows this error msg :/

[@nooral-huda2519]

i was wondering if i can use that code when the myoware is on the leg muscles, i need a quick answer cuz my project really depends on this :(

[@Frank-yb4zd]

Noor Al-Huda yes it works on ANY muscle in the body that is touchable lol

[@nooral-huda2519]

is there any way to contact you, cuz im having many difficulties with my graduation project, its so important to me, i need your help :(

[@Frank-yb4zd]

Noor Al-Huda what's your email?

[@nooral-huda2519]

[e-mail] this is it

[@razinzulkefli2185]

is it possible if i use this coding but different type of servo?

[@Frank-yb4zd]

Razin Zulkefli yes

[@doncondorshockey]

nice bicep bro

[@nikhilmaudhoo8966]

im having some trouble with the sensor, i have connected the sensor as you said (im using the example AnalogReadsignal and serial monitor too find the thresh ) but the sig led does not react to muscle flexion, sometimes it is always on or becomes on when i apply slight pressure on the sensor. And also the values displayed on serial monitor are very erratic. Can i get a quick response because i need to get this done by next week?

[@Frank-yb4zd]

are your electrodes positioned properly?

[@nikhilmaudhoo8966]

2 on the middle of the muscle and 1 far from it

[@Frank-yb4zd]

nikhil maudhoo and the LED you are referring to is the LED on the MyoWare itself?

[@nikhilmaudhoo8966]

yes, the sig one to be precise

[@Frank-yb4zd]

nikhil maudhoo have you tried adjusting the built in potentiometer ?

[@TheLordpeanuts]

It was unclear; where do I buy these things?

[@Frank-yb4zd]

just google the parts roberto

[@vishwasdevagiri2043]

hi Frank, nice video ...I had a little problem in using my sensor .I connected the sensor to my arm but I am not able to get any signal from it .please help me out as I really need this working for my final projectthank u in advance

[@Frank-yb4zd]

firstly is your electrode placement correct? if so can you be more specific with your problem?

[@vishwasdevagiri2043]

+Frank (Frankybuilds) hi.... I have place the sensor rite where u have and to be specific about the problem .... the signal light is on even when not flexed and when my arm is in its relaxed position and there is no change after flexing ..... and can I ask u another favour. ..is there any possibility to Skype my email id is [e-mail] it would be really cool if u could help me out

[@Frank-yb4zd]

+vishwas devagiri in 5 hours I can

[@vishwasdevagiri2043]

+Frank (Frankybuilds) cool no problem

[@vishwasdevagiri2043]

+vishwas devagiri can u send me ur skype id

[@StumblerFR]

Really nice thanks you ! Can I use a 12v battery to make mine ? Thanks a lot !

[@Frank-yb4zd]

I believe an official arduino can take up to 12v (12v is kinda pushing it... board might warm up a bit)... but as long as you feed the MyoWare 3.3v using the 3.3v output on the board I think it should work fine

[@StumblerFR]

+Frank (Frankybuilds) okay thanks you ! Because I would like to use an electric actuator powered in 12v in place of the servo, you thinks it will work ? Thanks you ! :)

[@Frank-yb4zd]

+StumblerFR how many volts does the actuator require?

[@StumblerFR]

+Frank (Frankybuilds) it require 12v This one : www.confort-center.com/fr/motorisation/49-verin-electrique-moteur-multi-usage-100mm-12v-750n-76kg-644221445778.html

[@Frank-yb4zd]

+StumblerFR I'm not too familiar with actuators... does it have a positive signal and negative wire?

[@AlBerserker]

Where can i buy the adaptor to attach the battery to the board?

[@Frank-yb4zd]

Alberto Fernández Fernández I made that adapter using old parts

[@AlBerserker]

so that's two male jumper wires attached to a tamiya male connector isn't it?

[@Frank-yb4zd]

basically cut the ends off www.amazon.com/gp/product/B00RT611JW/ref=ox_sc_act_title_3?ie=UTF8&psc=1&smid=AMJZOOCNGSECT and soldered something like these www.amazon.com/2-54mm-Positions-Single-Angled-Headers/dp/B00FB55Y0A/ref=sr_1_1?ie=UTF8&qid=1483950061&sr=8-1&keywords=angled+header to the end. then I wrapped the solder point with heatshrink

[@AlBerserker]

oh thanks very useful. And how do you charge the battery?

[@Frank-yb4zd]

www.amazon.com/Tenergy-Universal-Smart-6V-Charger/dp/B003MXMJX8/ref=sr_1_3?ie=UTF8&qid=1483950312&sr=8-3&keywords=tenergy+charger this battery and charger are a bit overkill for this project, but it is all I had at the time. Something like this www.pololu.com/product/2224 would suffice

[@darylmalicdem7202]

Hey frank can is there a way that we can chat? id like to ask some things about the myoware thanks

[@Frank-yb4zd]

drop your skype if you have one or we can talk right here

[@Frank-yb4zd]

but i can't talk today

[@barryparker5225]

Can you add more than one servo?

[@Frank-yb4zd]

Yes, so long as enough power is supplied to each servo

[@finnmartin1036]

Does the code change if you add more servo motors? Thanks.

[@muhamadkeadan2866]

hi that was very awesome but i want the arduino code

[@mohdfikrisaadroni4022]

hello frank, i would like to ask, im using Tower Pro MG995 Metal Gear 13kg/55g High Speed & Torque Digi Servo . The motor is rotate when the muscle reflex and it stop when no reflex but it did not going back to the position. This is my coding can u help me check if its wrong or not. Hope you can help me before tomorrow . #include Servo myservo; const int threshValue = 640; void setup() { myservo.attach(9); } void loop() { int value = analogRead(A3); if(value < threshValue) { myservo.write(90); } else { myservo.write(0); } }

[@Frank-yb4zd]

Try this. Worked For Me. #include Servo myservo; const int threshValue = 250; void setup() { myservo.attach(9); } void loop() { int value = analogRead(A3); if(value < threshValue) { myservo.writeMicroseconds(800); } else { myservo.writeMicroseconds(2250); } }

[@Frank-yb4zd]

btw, your thresh value seems a biiiiit high

[@Frank-yb4zd]

don't be scared to adjust the gain potentiometer on the MyoWare PCB

[@mohdfikrisaadroni4022]

i already try it, but it cant work. Im not using the Continuous Rotation Servo, so i change my coding to myservo.write(90); when i set to 90 it rotate and when it 0 the motor stop. but its not going back to the same position again. is it because the coding or the motor?

[@mohdfikrisaadroni4022]

i get the thresh value from the analogreadsignal - serial monitor

[@sherosegill4580]

hi .. i like your project .. can you help me with the coding?

[@Frank-yb4zd]

Sherose Gill what do you need help with?

[@sherosegill4580]

i need the code .. I'm working on prosthesis hand .. it's my project

[@Frank-yb4zd]

+Thomas Thomsen #include Servo myservo; const int threshValue = 250; void setup() { myservo.attach(9); } void loop() { int value = analogRead(A3); if(value < threshValue) { myservo.writeMicroseconds(800); } else { myservo.writeMicroseconds(2250); } }

[@sherosegill4580]

Frank thanks buddy

[@yuvrajdewangan7946]

sir can you send me source code

[@smurnav1]

anyone has the code?

[@joefelix3009]

I like turtles!

[@noelcordero7929]

hahah lmao

[@kotgame5956]

wyśli mi to

[@mohameddhaouafi1102]

can i have your email please?

[@Frank-yb4zd]

drop your email here, and I'll respond to you

[@mohameddhaouafi1102]

[e-mail]

[@futtemut]

can you send the arduino code ?

[@Frank-yb4zd]

+Thomas Thomsen #include Servo myservo; const int threshValue = 250; void setup() { myservo.attach(9); } void loop() { int value = analogRead(A3); if(value < threshValue) { myservo.writeMicroseconds(800); } else { myservo.writeMicroseconds(2250); } }

[@futtemut]

+Frank (Frankybuilds) very usefull :-)

[@vipulballupet8829]

thank you

[@metronom_81]

Thanks for sharing bro 👍

[@charlieherman223]

I know I'm late to the party, but I kept getting error code "exit status 1" and I couldn't figure out how to get rid of it. Everything in my code looked fine and i copied it exactly. Any advice?