9. Wearables


Inspirations

→https://unstable.design/← ☺ Textile Animation: The Emerging Goddess !


→https://www.richardvijgen.nl/#hyperthread← ☺ Wify tapestry


→Irene Posh← et →Ebru Kurbak← ☺ The knitted Radio !


→Claire Williams← ☺ Sound Embroidery !

THERMOCHROMIC CIRCUIT

↓↓↓ Mofset circuit ↓↓↓

" Heating takes a LOT of power - current to be specific. Arduino pins cannot provide the power we need to warm a heating element. We can't draw more than 40mA from a pin. We have to construct a circuit that will let us use a secondary power source. Thanks to transistors, we can do this "

Constructed thanks to the Liza Stark's →slide←

TOOLS

  • Arduino UNO / fabriXIAO
  • Arduino IDE
  • Personnal Mosfet (transistor)
  • 9V battery (secondary power source)
  • 100k resistance
  • 1N4001 DIODE
  • Heating element*

→ Blink code 

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(3, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(3, HIGH);  // turn the LED on (HIGH is the voltage level)
  delay(10000);                      // wait for a second
  digitalWrite(3, LOW);   // turn the LED off by making the voltage LOW
  delay(2000);                      // wait for a second
}
↓ Soldering + taking to pieces a broken speaker ↓

Blink test with fabriXIAO

Heating element*

According to the lecture, we need to find the correct ohm value from the heating element.

For my thermochromic circuit I need 2.8 Ohm in my heating element. I used 40cm of Nichrome80 yarn (0.14D / 250 gr).

COATING WITH ACRYLIC

As my yarn has a small size, to feel more the heat we need to concentrate it. By coating the yarn I would be able to coiling it on itself !

Thermochromic ink

↓↓↓ Dying a coton yarn ↓↓↓

↓↓↓ Knit knit knit ↓↓↓ jacquard structure

I added a mosfet circuit on my jacquard ! I realised that a good e-textile need very good connections so my swatch can't be worn for now because I used crocodile clip !

↓↓ reaction at 27° ↓↓

Depending of the temperature around, the color comes back little by little. My hands are constantly cold so, it was fun to play with warm and cold hands !

/// IDEA //
mask that react with our warm breath

Heat felt pen

Preparation of the felt pen * with my acrylic coated yarn

☺☺☺☺ RESULT ☺☺☺☺