http://www.youtube.com/watch?v=kwhSrHl6ub4
I connect Nintendo Will Nunchuk to Arduino and made Aii.
I connect Aii to Isadora which is running on my desktop.
I connect Isadora that is running on Laptop to Isadora that is running on my desktop with OSC transmit.
Thanks Joe to shake my Aii !!
LilyPad Arduino is a wearable Arduino.
It uses conduct threads in stead of regular metal wires so that it enable to make a wearable art work or interactive wall cloth.
I did a following experiment with Lily pad; however, I do not recommend you to do a same thing with me since I did not planed perfectly and it was the first time trial.
I made a gloves with LED. If I press or hold something with finger, the color of LED will be changed.
Requirement
Lily pad Arduino
conduct thread
power supply for Lily pad Arduino
AAA battery
10K resistor
Force sensor
LED that came with Lily Pad
Sewing Stuffs (needle, thread)
Cloth or material which you want to be sewed
Warning: this experiment potentially causes unexpected danger to you and Arduino.
Be safe when you do a experiment with Lily Pad.
If you find anything that unexpected result, plug out power charger( USB or battery ).
I actually almost broke down the circuit of the LilyPad because of shorts of the circuit.
First thing that you need to do is to imagine the final form of the circuit.
It must be better to spend a time to figure out how you sew thread to the glove.
I am sure that you will encounter a lot of problems while you are sewing since I also encountered a lot of problems.
Basic idea of circuit
As you see some of the threads nearly touch each other, that really bad.
I should have planned more nicely.
Program
int ledPin=10; // declare variables
int ledPin2=10;
int pressure=0;
int val,val2;
void setup()
{
pinMode(ledPin, OUTPUT); //setup pin
}
void loop()
{
val = analogRead(pressure)/4;
//load data and convert it to suitable value for PWM
val2 = 255-val;
//load data and convert it to suitable value for PWM
analogWrite(ledPin, val);
delay(400);
analogWrite(ledPin, val2);
delay(400);
}
Requirements
Arduino
10K Ohm Resistor
Force sensor
Wires
Circuit
Program
The program for force sensor is simple
int pinX=0; //variables
int dataX;
void setup()
{
Serial.begin(9600); //setup serial speed
}
void loop()
{
dataX=analogRead(pinX); // read a value
Serial.println(dataX);//send a value to PC
delay(100);//regulate a time
}
or you can use more shorter program
void setup()
{
Serial.begin(9600); //setup serial speed
}
void loop()
{
Serial.println(analogRead(0));//read and send a value to PC
delay(100);//regulate a time
}
whichever you want
Experiment Movie
Testing LilyPad Arduino
http://arduino.cc/en/Guide/ArduinoLilyPad
test based on a webpage
http://web.media.mit.edu/~leah/LilyPad/06_rgb.html
instead of using 9,10,11 and 5V pins I use 3,5,6 and 13 pins.
The pins 3,5,6,9,10, and 11 have a function of pwm.
From the test, I conform that the function of pwm is available.
LilyPad + LEDs + Buzzer
I added following cords.
int soundPin=2;
int frequency;
pinMode(soundPin,OUTPUT);
frequency=random(800,3000);
tone(soundPin, frequency,5000);
delay(100);
I did a test of temp. sensor but I do not know whether temp. sensor works properly or not.
Stand alone lilypad
Accelerometer test
instruction
Connect X,Y, and Z of the accelerometer to the analog input 0, 1, and 2 respectively.
Also connect 5V and ground.
int pinX=0;
int pinY=1;
int pinZ=2;
int dataX,dataY,dataZ;
void setup()
{
Serial.begin(9600);
}
void loop()
{
dataX=analogRead(pinX);
dataY=analogRead(pinY);
dataZ=analogRead(pinZ);
Serial.print(dataX);
Serial.print("-");
Serial.print(dataY);
Serial.print("-");
Serial.println(dataZ);
delay(100);
}
Piezo vibration sensor
explanation of Piezo
http://arduino.cc/en/Tutorial/Knock
Requirement
10k Ohm Resister(any valued resistor is fine but it is hard to get a signal if you use lower resistor and it is potential risk to break down analog input if you use too high resistor)
piezo
wires
Arduino
This exercise is very simple.
Circuit
I wrongly put a LED in a picture but it does not do anything.
Program
I made a very simple program to check
void setup()
{
Serial.begin(9600);//setup serial speed
}
void loop()
{
Serial.println(analogRead(0)); // gets data from analog pin 0 and send to computer
delay(500); //not to send too much information
}
It actually the resistor is critical for this circuit.
I originally used 100k ohm resistor but the value of analog signal was so tiny.
Also the result is deeply depend on piezo itself. I tried three different piezo but they send back different amount of values.
http://www.lulu.com/items/volume_63/1108000/1108699/4/print/ARDUINO_NOTEBOOKv6.pdf
This tutorial is based on the PDF page 35 about servo, and I changed program to check my understanding of the tutorial.
The PDF tutorial has a good information but the program seems complex. I simplified a program and add a little function.
In the following tutorial I am going to explain the way to control servo motor in a different way that explained in a tutorial of the Arduino web page.
In way that is introduced in a Arduino web page is use servo library to control the servo motor. Therefore, only pin9 and pin10 is available for servo.
However, the pin 9 and 10 has a function of pwm and you might want to use them for other purposes.
This tutorial enable you to use any digital pin to control servo motor.
Requirements
Servo motor
(you may need a pin that has three legs both side to connect servo to the board)
10K resistor
Switch
Wires
Arduino
Before we start we need to understand more about servo motor
From the PDF
http://www.lulu.com/items/volume_63/1108000/1108699/4/print/ARDUINO_NOTEBOOKv6.pdf
"Hobby servos are a type of self-contained motor that can move in a 180º arc. All that is needed is a pulse sent every 20ms."
From the Arduino web page
http://arduino.cc/en/Tutorial/Knob
"Servo motors have three wires: power, ground, and signal. The power wire is typically red, and should be connected to the 5V pin on the Arduino board. The ground wire is typically black or brown and should be connected to a ground pin on the Arduino board. The signal pin is typically yellow or orange and should be connected to pin 9 on the Arduino board."
I found additional useful information from Wikipedia
http://en.wikipedia.org/wiki/Servo_motor
"A servo pulse of 1.5 ms width will set the servo to its "neutral" position, or 90°. For example a servo pulse of 1.25 ms could set the servo to 0° and a pulse of 1.75 ms could set the servo to 180°. The physical limits and timings of the servo hardware varies between brands and models, but a general servo's angular motion will travel somewhere in the range of 180° - 210° and the neutral position is almost always at 1.5 ms."
Now we got a enough information to program and build up circuit, so that let's try based on these information.
Circuit
Program
/*
This program is enable you to rotate a servo motor without using a Arduino library.
If you hit a switch the motor will rotate opposite direction.
*/
int ledPin=3;//switch
int pin=2;//for servo motor control
int val;
int offCount = 1450;// you can change the rotation of the servo motor
int onCount = 1550;//same as here
void setup()
{
pinMode(pin, OUTPUT);//set up pins
pinMode(ledPin, INPUT);
}
void loop()
{
val= digitalRead(ledPin); // get data from switch
if (val==false)
//check whether switch is on or off you can use 0 instead of false
{
digitalWrite(pin, HIGH); //send a pulse
delayMicroseconds(offCount);//it is important for servo motor
digitalWrite(pin, LOW);
delay(20);// also important. If you omit it, the motor do not work properly.
}
else
{
// when you switch on
digitalWrite(pin, HIGH);
delayMicroseconds(onCount);
digitalWrite(pin, LOW);
delay(20);
}
}
If you put a value 1500 at offCount or onCount ot both the motor does not work but it does not mean broken but it is balanced.
I do not know how much angle does our servo motor can take, but we can put a value from 1250 to 1750 safely.
Extra
Ardui-Bot (Arduino on the Boe-Bot frame)
http://www.lulu.com/items/volume_63/1108000/1108699/4/print/ARDUINO_NOTEBOOKv6.pdf
This exercise based on the PDF p32,p34 "pwm output" out put and I modified a program to check my understanding.
The term pwm output is Pulse-width modulation that allow to use digital output like as analog output.
The following circuit and program will adjust the brightness of the LED by the darkness of the place with photo-sensor and pwm.
Requirements
220Ω resistor
more than 10kΩ resistor (depend on the darkness of a room. I use 21kΩ)
1kΩ resistor(not necessary to use 1kΩ)
LED
Photo-sensor
Wires
Arduino 
Program
/*
Basically, this program works like a bridge between analog input and pwm output.
Get a value from photosensor and do calculation to adjust a value for pwm with arithmetics.
*/
int ledPin = 9; // PWM pin for the LED
int anaPin=0;
int val;
void setup(){
Serial.begin(9600);
Serial.println("start");
}
void loop()
{
val = analogRead(anaPin)/4;
/*
The program get a vale from analog input.
However, the value of analog input takes from 0 to approx. 1000
,but for the pwm we need a value from 0 to 255.
Therefore, the value is divided by 4.
*/
Serial.println(val); // just for checking a value
val = 255 - val;
/*
Since we want to light the LED when a room became dark,
we need to do kind of flip the value.
So that we need to subtract a value from 255.
*/
analogWrite(ledPin, val);// send a signal and value to the pin
delay(100);
}
Hardware setup
Work movie
http://www.lulu.com/items/volume_63/1108000/1108699/4/print/ARDUINO_NOTEBOOKv6.pdf
The below program is based on the things that I learned in the PDF document page 16 to 26.
Learned: complex condition cords with "if" and "while".
This original program tells the value from analog input, which is connected to the Potentiometer, with Green LED and Red LED and sound.
If the analog input got more electrical flow, Arduino lights Green LED. If the flow is middle, Arduino lights Red LED. If the flow is low or none, Arduino tells us through the speaker.
I use commends that learned through the PDF exercise, in order to check my understanding.
Requirements
Arduino basic kit(two LEDs, possibly red and green; speaker; potentiometer and wires)
Resistor (more than 2. The number depend on how much Ω is it)
Program
/*
while(val<=300)// if analog pin 0 got less than 300, do play a sound
{
tone(digiPin3, 494, 500); // command for sound
delay(500);
val=analogRead(anaPin); // This step is important. If you forget it, you can't go out of while loop
}
// if value is 300
val=analogRead(anaPin); is important in the while loop. I did not put this commend at first so that the program did not work what I wanted. It was a good study.
My work movie.
http://www.lulu.com/items/volume_63/1108000/1108699/4/print/ARDUINO_NOTEBOOKv6.pdf
The below program is based on the things that I learned in the PDF document page 1 to 15.
Discovery : "Array", which can store values, is very useful.
This program light the led that connected to the digital pin #13 for 0.01 second 5 times and send a message back to the computer.
Requirement
Arduino + LED (If you use digital pin 13 and have a proper LED)
or
Arduino + LED + resister and wires(same as picture below)
Program
/*
This is a program that to show thigs that I learned from
http://www.lulu.com/items/volume_63/1108000/1108699/4/print/ARDUINO_NOTEBOOKv6.pdf Page 1 to 15
I am going to include commend as much as possible.
*/
/*
This is a block comment. I can write any thing in this section.
*/
// This is also comment. line comment
//list of variables
int variable;//integer that declares variables. most commonly used. 16bit 32,767 to -32,768.
int abc, def, ghi; // variables can take this form
int pin=13; // and also it can take this form
int y = 1;
byte b; //8 bit 0-255
long l; //32 bit 2,147,483,647 to -2,147,483,648
float f; //32 bit 3.4028235E+38 to -3.4028235E+38
double dob; // other form of varable for floating decimal
char ch; // also other form of variable. char has a different function from int
int delayValA[ ]={10, 3000, 5000}; //arrays that can stor the values
void setup()
{ //defines the starting point of function
Serial.begin(9600); // setup connection speed 9600 is good for my arduino
// very important. if you do not get respond from Arduino it must be because of this command
//void setup is the first function of the program
pinMode(pin, OUTPUT); // sets the 0pin as out put
}//defines the ending point of function
void loop()
{
for (int i=1; i<=5;) // this variable works only in the for loop
{
i++; // increment. there is many increment and decrement such as -- ++ *=
Serial.println(i);
digitalWrite(pin,HIGH);//send high signal(1)to the pin
delay(delayValA[1]); // delay the commend
digitalWrite(pin,LOW);//send low signal(0)to the pin
delay(delayValA[2] + 1000); //arithmetic works like this
digitalWrite(pin,HIGH);//send high signal(1)to the pin
delay(delayValA[1]); // delay the commend
digitalWrite(pin,LOW);//send low signal(0)to the pin
delay(delayValA[2] + 1000); //arithmetic works like this
}
Serial. println("out of for loop "); //println is use for send a message from Arduino
delay(delayValA[3] + 2000);
}
Actually, the PDF does not explain "for" commend and it is not easily understandable.
This link is useful to learn about For commend.
http://arduino.cc/en/Reference/For
for ( variable initialize; test; additional information)
for ( int i =0; i<10;>
Hardware setup
Experiment movie
