/*
Code for DIY E-Textile VR Glove
by Rachel Freire, Arty, Hannah

Reads the values of 5 ananlog stretch sensors on the knuckles of 3 fingers.
Sends these over the serial port.
Controls the colour of a neopixel LED according to the incoming values.

DOCUMENTATION:
Instructable >>
Snap diamond >> http://www.kobakant.at/DIY/?p=6703
*/

#include
#ifdef __AVR__
#include
#endif

#define PIN 2

Adafruit_NeoPixel strip = Adafruit_NeoPixel(1, PIN, NEO_GRB + NEO_KHZ800);
int sensorValues[] = {0,0,0,0,0};
byte analogPins[] = {
A1, A0, A3, A4, A5
};
// re-mapped for sensor order:
// Thumb = 1
// Index finger knuckle = 0
// Index hand knuckle = 3
// Middle finger knuckle = 4
// Middle hand knuckle = 5

void setup() {
for (int i = 0; i < 5; i++) { pinMode(analogPins[i], INPUT); } Serial.begin(9600); strip.begin(); strip.show(); // Initialize all pixels to 'off' } void loop() { for (int i = 0; i < 5; i++) { sensorValues[i] = analogRead(analogPins[i]); Serial.print(sensorValues[i]); if (i < 4) Serial.print(","); } Serial.println(); int redColour = map(sensorValues[1], 240, 250, 0, 255); //thumb int greenColour = map((sensorValues[0] + sensorValues[3]) / 2, 230, 260, 0, 255); //index int blueColour = map((sensorValues[4] + sensorValues[5]) / 2, 250, 300, 0, 255); //middle strip.setPixelColor(0, Wheel((redColour + greenColour + blueColour) / 3)); // edit wheel //strip.setPixelColor(0, strip.Color(redColour, greenColour, blueColour)); // edit RGB strip.show(); // This sends the updated pixel color to the hardware. } // Input a value 0 to 255 to get a color value. // The colours are a transition r - g - b - back to r. uint32_t Wheel(byte WheelPos) { WheelPos = 255 - WheelPos; if(WheelPos < 85) { return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3); } if(WheelPos < 170) { WheelPos -= 85; return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3); } WheelPos -= 170; return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0); }

/*
Code for DIY E-Textile VR Glove
by Rachel Freire, Arty, Hannah

Reads the values of 5 ananlog stretch sensors on the knuckles of 3 fingers.
Sends these over the serial port.
Controls the colour of a neopixel LED according to the incoming values.

DOCUMENTATION:
Instructable >>
Snap diamond >> http://www.kobakant.at/DIY/?p=6703

Based on Serial Graphing Sketch by Tom Igoe
This sketch takes ASCII values from the serial port at 9600 bps and graphs them.
The values should be comma-delimited, with a newline at the end of every set of values.
*/

import processing.serial.*;

int maxNumberOfSensors = 5; // Arduino has 6 analog inputs, so I chose 6
boolean fontInitialized = false; // whether the font’s been initialized
Serial myPort; // The serial port
float[] previousValue = new float[maxNumberOfSensors]; // array of previous values
int xpos = 0; // x position of the graph
int[] mappedValues = new int[maxNumberOfSensors];
PFont myFont; // font for writing text to the window
String[] sensorNames = {“Thumb”, “Index_fk”, “Index_hk”, “Middle_fk”, “Middle_hk”};

void setup () {
size(800, 600);
println(Serial.list());
String portName = Serial.list()[1];
myPort = new Serial(this, portName, 9600);
myPort.clear();
myPort.bufferUntil(‘\n’);
background(0);
smooth();

myFont = createFont(PFont.list()[3], 14);
textFont(myFont);
fontInitialized = true;
// set inital background:
}

void draw () {
for (int i = 0; i < mappedValues.length; i++) { float ypos = map(mappedValues[i], 0, 1023, 0, height/mappedValues.length); float graphBottom = i * height/mappedValues.length; ypos = ypos + graphBottom; noStroke(); fill(0); rect(10, graphBottom+1, 110, 20); fill(255); int textPos = int(graphBottom) + 14; // sometimes serialEvent() can happen before setup() is done. // so you need to make sure the font is initialized before // you text(): if (fontInitialized) { text(sensorNames[i] + ":" + mappedValues[i], 10, textPos); } stroke(127); strokeWeight(1); line(0, graphBottom, width, graphBottom); strokeWeight(5); stroke(64*i, 32*i, 255); line(xpos, previousValue[i], xpos+1, ypos); previousValue[i] = ypos; } if (xpos >= width) {
xpos = 0;
background(0);
} else {
xpos++;
}
}

void serialEvent (Serial myPort) {
String inString = myPort.readStringUntil(‘\n’); // get the ASCII string:
if (inString != null) { // if it’s not empty
inString = trim(inString); // trim off any whitespace
int incomingValues[] = int(split(inString, “,”)); // convert to an array of ints
println(“length: ” + incomingValues.length + ” values.\t”);
if (incomingValues.length <= maxNumberOfSensors && incomingValues.length > 0) {
for (int i = 0; i < incomingValues.length; i++) { mappedValues[i] = int(map(incomingValues[i], 200, 500, 0, 1023)); mappedValues[i] = constrain(mappedValues[i], 0, 1023); println("incoming: " + incomingValues[i] + " mapped: " + mappedValues[i]); } } } }