13. Skin Electronics

Research

In recent years, there is a mass update on research on electronic skin or e-skin.

E-skin is worn over human skin and can be used to garner information about bodily conditions, such as heart rate, blood pressure, and other biometrics.

References & Inspiration

• Some recent research from PHD John Rogers was made for e skin that help infant in intensive care :

• Another interesting research from PHD George Malliaras focusing on application of organic electronic materials to interfacing with the brain .

nowadays scientific have also made it possible to power e-skin with sweat. With this new approach to power the e-skin, it is no longer hampered by unreliable power sources.

• a recent research 2019 from a pioneer scientific Dr Tee"A transparent, self-healing and high-k diele".

Above pic from Dr.Tee research.

This development will make it easier to develop new possibilities for wearables of all descriptions. more interesting video about e skin can be found here

Process and workflow

I think one of Skin robotic objective that can be achived by connecting our feeling into interaction, secialy when it give us feeling to be more special and unique .

also it can send indirect massage to other to tell them about related feeling we have anger or happy .

So my idea for this week assigmnet is to cennecting led light to my wrist and turn it on when i join my thumb with index finger. we can use this method in acting in front of audince inside thieater or when joiing a singer party or wating a match in stadium to celebrate a goal or waveing for special songs .

below picture is the schematic of the circut of the experiment

So I used Gemma M0 chip, copper wires,copper tape and lilypad LED

At beggining i try with copper type , so when joining my thumb with index finger as below picture explain the led will turn on :

And when release my thumb far from my index finger as below picture it will turn of light :

Then I replaced the copper tape with the braid cable for soldering as shown in the picture below in order to get better finishing and a better result

Code Example

below is the code i use which is for blinking when circuits close and have 1 second as delay .

// int led = A1;

void setup() {
  // put your setup code here, to run once:
pinMode(led,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(led,HIGH); // turn the LED on  high voltage level
delay(1000);            // wait for one  second
digitalWrite(led,LOW);  //turn the LED off by making the level of voltage LOW
delay(1000);            // wait for one  second
}

• in order to make the code run with GEMMA chip ,we must download a SAMD Library as below picture :

more information you can find it below at lear Adafruit

Results

finally after several try's to find the correct library that can work with Gemma , the result was successful ,note that Gemma need special library in order to be able to work you can find a useful info through "Adafruit SAMD library"

Video

First attempt :

below is the successful experiment video :

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Useful link website :

[1] using with arduino ide.

[2] Gemma color touch pendant necklace.

[3] circuitpython digital inputs & outputs

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Last update: 2023-05-06