E-textiles

MIT Engineers create a programmable fiber

Engineers create a programmable fiber In a first, the digital fiber contains memory, temperature sensors, and a trained neural network program for inferring physical activity

New fibers can make breath-regulating garments “Robotic” textiles could help performers and athletes train their breathing, and potentially help patients recovering from postsurgery breathing changes.

Conductive fabrics

Available at Fab Lab BCN

Analog Sensor

based on a project by Ana Correa Ana Correa Analog Tilt Sensor

Circuit Prototype

Code

 int sensorValue = 0;
int value = 0;

int redPin = 10;
int greenPin = 9;
int bluePin = 6;

int redVal = 255;
int greenVal = 255;
int blueVal = 255;

// the setup routine runs once when you press reset:
void setup() {
  // initialize serial communication at 9600 bits per second:
  pinMode(A0, INPUT);
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);
  Serial.begin(9600);
}

// the loop routine runs over and over again forever:
void loop() {
  // read the input on analog pin 0:
  int sensorValue = analogRead(A0);
  // print out the value you read:

  sensorValue = constrain(sensorValue, 150, 400);

  // Go from white to Cyan
  if (sensorValue >= 0 && sensorValue <= 150);
  {
    int CyanColor = map (sensorValue, 0,150,0,255); 
     redVal = 255 - CyanColor;
     greenVal = 255;
     blueVal = 255;
     // CyanColor rgb ( 0, 255, 255) 0 to 300
  }

  // Go from Cyan to Green
   if(sensorValue > 150 && sensorValue <= 200){
      int GreenColor = map(sensorValue, 200,300,0,255);
      redVal = 0;
      greenVal = 255;
      blueVal = 255 - GreenColor;
      // GreenColor  rgb(0,255,0)  300 -  450
 }

// Go from Green to Yellow
   if(sensorValue > 200 && sensorValue <= 250){
    int YellowR = map(sensorValue, 300,400,0,255);
    redVal = YellowR;
    greenVal = 255;
    blueVal = 0;
    // yellow rgb(255,255,0) 450 to 600
 }


   // Go from Yellow to Magenta
   if(sensorValue > 250 && sensorValue <= 300){
    int MagentaR = map(sensorValue, 400,500,0,255);
    redVal = 255;
    greenVal = 255 - MagentaR;
    blueVal = MagentaR;
    // Magneta rgb(255,0,255) 600 to 750
 }

  // Go from Magenta to Red
   if(sensorValue > 300 && sensorValue <= 350){
    int RedR = map(sensorValue, 500,550,0,255);
    redVal = 255;
    greenVal = 0;
    blueVal = 255 - RedR;
    // Red rgb(255,0,0) 750 to 850
 }


analogWrite(redPin, redVal);
analogWrite(greenPin, greenVal);
analogWrite(bluePin, blueVal);


Serial.print("sensorValue = ");Serial.print(sensorValue);Serial.print(" | ");
Serial.print("RedVal = ");Serial.print(redVal);Serial.print(" | ");
Serial.print("GreenVal = ");Serial.print(greenVal);Serial.print(" | ");
Serial.print("BlueVal = ");Serial.println(blueVal);

  delay(10);        // delay in between reads for stability

}

Input Values Range and Mapping

The input data range was around 150-350. Therefore the output LED Diode light frequency was divided in 5 equal parts to map the color from red to cyan.