Haptic Feedback Experiments

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PARTS AND MATERIALS –

(1)Breadboard

(1)Arduino Nano 33 IOT

(2)Keyes Vibrating motor module

(2) Transistors

(2) LED lights replacement of diodes

Jumper wires

Aligator Clips

Conductive Fabric

Conductive Thread

Felt Fabric

Thread & Glue gun

CIRCUIT DIAGRAMS –

Experiment 1 – Understanding Vibrating motors blink/fade

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Experiment 2 – Tactile illusions

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CODE –

https://github.com/simranduggal96/Prototype-6—Haptic-Feedback

INDTRODUCTION 

EXPERIMENT 1 –

In the first experiment , my aim was to understand how the vibrating motors work and how the sensation feels when we change the intensity of the vibrations.I tried both Blink and Fade code and explored the vibration sensation by directly moving the motor on my fingers and palm. I also tried putting a fabric between by hand and the vibration motor and observed that the sensation varies from the thickness and nature of the materials in between.

BLINK –

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FADE –

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EXPERIMENT 2 – Face massage tool

For the second experiment, I wanted to create a small product prototype with two vibrating motors. I also used my learning from the ‘Digital Switches’ and made a Face Massaging tool that works only when pressure is applied and the digital switches connects. The prototype has been constructed in layers with conductive fabric sandwiched between felt fabric, connected with conductive threads and vibrating motors attached to the another layer of felt fabric.

The motors are coded in such a way that creates a tactile illusion of vibrating sensation. As soon as the Positive and Negative of the conductive fabric touch each other, the first motor starts vibrating. After a few seconds, even the other motor turns on and the intensity of the vibration increases. When the digital switches disconnect, the one motor turns off immediately and the other one turns off after a few seconds. As a facial massaging product, this sensation illusions helps in slowly decreasing the intensity of vibration on the face.

Process Images & Video –

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Final Images & Video –

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References –

https://www.theragun.com/ca/en-ca/pro-ca.html

https://www.scientificamerican.com/article/touching-illusions-2008-05/

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