BEND SENSORS

Connecting 3 bend sensors with 3 resistors (voltage divider) to 3 analog pins A0, A1 and A2 on the Arduino board. Bend sensor change the value when it’s bended.

 

 

I was reading the values of the bend sensors (with AnalogRedSerial) through Serial monitor and noticed a small range: from 140 as minimum value to 390 maximum.

 

Drawing with bend sensors

       

 

I coded different Processing drawing application using dots:

v15

v14

draw2

 

Dots are drawing the colour changing line and square. Because of the small range. I didn’t mapped the min and max value. Later I used the same code with textile sensors and output was different.

 

 

 

And Processing code for the last video:

import processing.serial.*;

float redValue = 0;
float greenValue = 0;
float blueValue = 0;

float mPos=0;
float nPos=0;
float oPos=0;

Serial myPort;

void setup() {
size(600, 600);
background(255);

println(Serial.list());
myPort = new Serial(this, Serial.list()[4], 9600);
myPort.bufferUntil(‘\n’);
}

void draw() {

fill (100,100,100);

ellipse (mPos+100,nPos+100, 9,9);

fill (greenValue, redValue, blueValue);
ellipse (mPos+200,nPos+200, 9, 9);

fill (50,50,50);
ellipse (mPos+100,nPos+100, 9,9);

fill (blueValue, redValue, greenValue);
ellipse (nPos+400,nPos-100, 9,9);

fill (0);
ellipse (nPos-40,oPos-80, 9,9);

fill (redValue, greenValue, blueValue);
ellipse (oPos+100,mPos-60, 20,20);

fill (redValue, greenValue, blueValue);
ellipse (nPos+10,nPos+10, 9,9);
}

void serialEvent(Serial myPort) {
String inString = myPort.readStringUntil(‘\n’);
if (inString != null) {
inString = trim(inString);
float[] colors = float(split(inString, “,”));
if (colors.length >=3) {
redValue = map(colors[0], 0, 1023, 0, 255);
greenValue = map(colors[1], 0, 1023, 0, 255);
blueValue = map(colors[2], 0, 1023, 0, 255);

mPos=map(colors[0], 0, 1023, 0, width);
nPos=map(colors[1], 0, 1023, 0, height);
oPos=map(colors[2], 0, 1023, 0, width);
}
}
}

 

I realised if I put background settings in void setup the elements are adding and drawing patterns and if I put it to void draw I can move elements around the screen.

dwar_move

The code is the same just change in background setting.