Make a Flex Sensor for Robotic Hand and Arduino | DIY
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In this tutorial, we will learn how to make and use a flex sensor.
We will control servo motor with a flex sensor.
Flex sensors are passive resistive devices that can be used to detect bending or flexing. The flex sensor shown in this tutorial is a flex sensor that decreases its resistance in proportion to the amount it is bent in either direction.You can easily make a sensor wider and longer depending upon your project.
Required Materials:
- Paper
- Flexible Cardboard or Plastic
- Pencil
- Aluminum Foil or Aluminum Tape
- Wires
- Solder or Glue Gun
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Download Example Code: create.arduino.cc/editor/mert...
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Source Code: create.arduino.cc/editor/mertarduinotech/2f500bae-b698-4d02-af7f-bdb84228161d/preview
Recommended Items:
Use Your Muscles in Project - amzn.to/3wdL45C
37 Sensor & Module Packages - amzn.to/3m66WeQ
Try this Robot Arm - amzn.to/3fq8DCl
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Arduino Compatible Kits - bit.ly/2J2AFF7
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sir u r awesome I loved your project, I am learning new things by watching your videos please keep making new projects.
Great ideas and tutorials ! :D Thanks
Thank You!!!
Very useful!
Wow, what a creative alternative!
this is exactly what I'm looking for. Thank you so much! New sub here !!
I've read in the comments below you obtained some different ranges. How could we improve this sensitivity? I'm really noob with this graphite thing hahaha I really want to learn more about this instrument. Ty
Mert Arduino Tutorial & Projects Thanks!! I will probe this
K
did it work
same
your channel it's fantastic!
Great job, helped me a ton
Every time, you impress me more.
awesome man just incredible thumbs up from me, waiting for next video
Hi, great work friend. I traied to do this for days, and i see other videos for make a flex sensor but i cant do this work. How do you do ? Same Tip ? And how do you measure the omnios? Can i do it with a tester or i have to pass energy to the circuit for it found ?
its good for test or some many examples. for more accurate always is better the original flex sensor. really amazing.
don't know about the sensors but the code really works
wow great job
great video dood:)
thank you very much!!
You are very intelligent!
freaking brilliant !
amazing job ,love your videos keep up the great work!
your welcome 😃
Amazing! Is this can create as 30cm x30 cm mat ? I want to create pressure mat
Thakxx bro for this video
hola no puedo hacer funcionar el sensor felx , que otra alternativa tengo en la confeccion
when you were gluing the sides did you use solder or hot glue
Can you please tell me the resistance range it showed from flat to fully bent position
is this working?
few years ago I design some flex sensors using copper sheets. bt that isn't work. I need to know if I use copper plate or sheet there can be a problem or not.
Se utiliza alguna bateria??? Para mover al servomotor?
Brilliant. Thanks! i
Nice job
Do you colour in one side of the paper or both sides with the pencil?
how have u attached the jumper wire to allumium sheet before putting glue using glue gun
what did u put in between the aluminum strips?? paper??
Nice work and effort, but only two positions of the servo obtained. ON and OFF, not much in between. Some chimney soot (pure graphite) might offer more analog signal.
Great video! What kind of resistors do you use?
I tested the sensor using a multimeter and it gave any reading at all? Can you explain how? I don't have servos to test it now
and can we use a flat metal wire instead of the aluminium strips??
Keep make it,,
Cheap, Nice and creative idea,,
Thank you for this channel..
Hi im trying to make this flex sensor.And i made 3 diffrent sensors and none of them work.It's like it wont recognize their movement. Is it possible because i didnt color it enough?
instead of hot silicone or solder can i use tape?
Can we use a 10k resistor there
Can we use one wire (female to female wire) for the part at 2:16?
good video ! does it works with 10khm ?
Bro that was awesome! But how it works? How its resistance is lessening?
waiting for next video..... :)
Good idea.
The value of my flex sensor is fluctuating. In serial plotter it forms a wave like structure. What can I do?
Very informative. Is there a way to make the transition smoother (eg: 12° or 48°)?
I have the same question.
just map the results between 12 & 48 then?
servoposition = map(flexposition, 0, 1023, 12, 48)
servoposition = constrain(servoposition, 12, 48)
Hahahahaha
Awesome😍😍
superb..........!!!!!!!!!!!
Wonder using graphite paper instead is better?
3:45 😂😂😂😂😂😂awesome video btw m8!
You were wiggling it.... It was quite funny.. 😂
thnx for this....awesome project
Mert Arduino and Tech can u add a tutorial on rgb control using hc05
Im geting the sensor btween 0to 17,18 and servo is always 0what should I do now????
Buna benzer sensörler geliştirebilir miyiz ?? Örneğin ıslaklık sensörünü yapabilir miyiz ?
good video thank you..could you explain why the resistance varies when you flex it, i didnt get that part
hello..yes i understand the graphite part..what I dont understand is why the resistance changes when it bends? Why does the graphite resistance changes when bend? how does bending affects the resistance?
This is a great idea. Gonna have to try it. Though I doubt about its sensitivity.
Mert Arduino Tutorial & Projects Yes... thanks for the reply.
Quick question: I saw another video that made flex sensors with aluminum can. Does it differ, like Will one work better than the other and why?
According to me this would work better than can
which example circuit we have to do to check the readings
ihave done the 2nd one but the sensor and servo always comming zero
what should i do !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Bende aluminyum folyola denedim ama flex sensörle servo motor kontrolu yapılmıyor sensor 1023 1018 arasında kendii otamatik değişiyor. Yaptığım sensörlerin hiç biri düzgün kontrol sağlamıyor. servo sürekli ufak ufak kendi halinde oynuyor bunu nasıl çözebilirim ?
That is cool
hola para la mano robotica necesito ponerle este codigo o el codigo de la mano sirve Para que funcione?
@Mert Arduino and Tech Hi, when I tried this, my servo motor keeps moving in circles at 0 position. Note: I did not the aluminum part with the cardboard yet, I wanted to test out the flex sensor itself. Could that be why?
I had the flex sensor reversed and I increased the range and it works fine now
I’m getting about 20 megaohms when it is at rest, but can only get it down to about 4.5 megaohms...any ideas on how I can get it down to about 10 kilohms?
what is that value of sensor? how did you get it???
hey can you put a video for wireless control for robot using flex sensor
Would you have a video on using a flex sensor that controls a relay opening/closing? I'd like to use your example for a upcoming project
I assume you need to do something like "if val < x, write the pin triggering the servo high, otherwise keep it low". That is so easy even i could work it out, sorry. ;o)
sir i am tushar from india i have a querry actualllly i was making flex sensor but i am unable to find flexible cardboard plz can u send me link fom where to buy flexiblble carboard
Thanks bro
Does the sensor only work while using arduino?
Can you make arduino controlled knuckle shaver?
hey can you explain the working of that sensor??
and also...how does the circuit even complete?
dosent the paper block the electricity?
Mert Arduino and Tech thanks 😁
how many microns allumium foil u used
love it
i know that what are you trying to do. but, i don't understand that when you bend your flex band, how it will be creating close path between aluminium contact? and change in resistance is too far from your device.
Is this polarized or doesn't the polarity matter?
I may be out of the line here, but I think the graphite on the paper works as an electron transmission medium, when it is bent, the amount of surface area for electron transmission changes, and that changes the resistance. But as I said, I am presumptuous
You are right. Graphite is conductive and in essense acts as a resistor. The more graphite, the less resistance and less sensitive.
do you have to use it as an analog? or can you also use a digital pin
Analog
The values fall when the sensor is messed with in any way and then rise again regardless afterwards. What is wrong?
Thanks
for what did you but the paper for
I cant understand how it works but........very good job....again new sub😊😊😊
Οκ
What the resistor value that suit to this flex sensor? 1000ohm? Hopefully u reply my comment as i really want to know.. Its for my FYP ;-;
Wich pen i Need to use?
thank you
it's not quite clear for me
I know all sensors change only one thing -- resistance
but what principle does the flex sensor work on (if 2 aluminium strips should not touch each other)
maybe capacitance
Felipe Eduardo Bravo Silva yes
piezoresistivity
You're all idiots. Tha paper changes resistance as it bends
Hi, thank you for video
I made sensor and connected it to the board just like you, but it's not working, can I contact with you?
I am having the same issue, did you resolve it?
Can we use tape instead of hot glue??
nice video! why use pencil? is it okay using pen instead of pencil?
excellent video!! Could you use copper to replace aluminum?
Thank you, I like the channel. Good videos are still good work.
Hy!
Awesome video, one question: How many ohm resistor did you use?
22
Bro please telll me why you take the coad to the computer. But the coad is already there
Abone oldum ve bildirimleri açtım 🇹🇷
sir pls comment how you checked the values of flex sensor
Thank you for your video！I meet some troubles in this project.My data is not stable.Sometimes its very low.Have you ever meet this problem?And sometimes I do not band the sensor, but analogread changes from 900+ to 1023 very fast.
Thank you!Looking forward to your new video!
the aluminium tapes are probably shorting themselves
can I use aluminum foil?
Can i use aluminium foil
What program do you use in the min 4:14?
What type of wire is it
Great.But can i use aluminium foil insted of aluminium sheet coz i dont have sheet
TRY THIS yes u can... it's fully okay
tam aradığım kanal ama biraz geç buldum
what if I use more than one pencil rubbed strip??
Is this aluminum foil paper?
+Mert Arduino Tutorial amd project why you coated only one side of paper with graphite?
Ok, but won't paper act as an insulator?How is the circuit being completed in that case?
Mrigank Gupta dude graphite is a conductor and pencil lead is made of graphite...
Electronics World dude i have the same question. the graphite is a conductor fine. but the paper is between the graphite. how will it pass?
what is the value of the resistor?