Intro to Multi Sensory Communication with Arduino

1. Sensorand Actuator
Ueki Atsuro
Satoru Tokuhisa
2011.11.29

2. Parts
• Arduino UNO x1
• USB cable x1
• GROVE - Starter Bundle x 1pkg
※Please keep these parts until 12/20
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3. Additional Parts
• 3 axis Gyro x 1
• 3 axis Accelerometer x 1
• Sound Sensor x1
• Vibrator x1
• Rotary Angle Sensor x 1
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4. Download
• Source code
– http://dl.dropbox.com/u/326446/
msc/02/source.zip
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5. Reference
• GROVE system
– http://www.seeedstudio.com/wiki/GROVE_System
• Language Reference
– http://arduino.cc/en/Reference/HomePage
• Tutorial
– http://arduino.cc/en/Tutorial/HomePage
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6. Outline
• How to use Sensor
– Rotary Angle Sensor
– 3 axis Accelerometer
– 3 axis Gyro
• How to use Actuator
– Piezo Buzzer
– Vibrator
– Servo Morot
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7. Practice with GROVE
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8. GROVE StarterKit
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9. PackList
• Buttons X1
• LEDs X1
• Tilt X1
• Buzzer X1
• Rotary Angle Sensor X1
• Temperature Sensor (Analog) X1
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10. PackList
• Smart Relay X1
• Protoshield X1
• LCD1602 Baseshield + LCD X1
• Stem Base Shield X1
• GROVE Cable X10
10
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11. Additional Parts
• 3 axis Gyro x 1
• 3 axis Accelerometer x 1
• Sound Sensor x1
• Vibrator x1
• Rotary Angle Sensor x 1
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12. Stem
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Analog Input
A0-A5
Digital Input /Output
D1- D13
A1
A0
A2
A3
A4
A5
D1D2D3D4D5D6
D7D8D9D10D11D13 D12
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I2C

13. Review
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14. digitalWrite/analogWrite
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LED Twig
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15. Stem
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D13
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16. Hello World!
void setup() {
// initialize the digital pin as an output.
// Pin 13 has an LED connected on most Arduino boards:
pinMode(13, OUTPUT);
}
void loop() {
digitalWrite(13, HIGH); // set the LED on
delay(1000); // wait for a second
digitalWrite(13, LOW); // set the LED off
delay(1000); // wait for a second
}
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Multi Sensory Communication

17. Change the BlinkInterval
void setup() {
// initialize the digital pin as an output.
// Pin 13 has an LED connected on most Arduino boards:
pinMode(13, OUTPUT);
}
void loop() {
digitalWrite(13, HIGH); // set the LED on
delay(100); // wait for a second
digitalWrite(13, LOW); // set the LED off
delay(100); // wait for a second
}
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Multi Sensory Communication

18. Change the BlinkRatio
void setup() {
// initialize the digital pin as an output.
// Pin 13 has an LED connected on most Arduino boards:
pinMode(13, OUTPUT);
}
void loop() {
digitalWrite(13, HIGH); // set the LED on
delay(5); // wait for a second
digitalWrite(13, LOW); // set the LED off
delay(5); // wait for a second
}
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19. Change the BlinkRatio
void setup() {
// initialize the digital pin as an output.
// Pin 13 has an LED connected on most Arduino boards:
pinMode(13, OUTPUT);
}
void loop() {
digitalWrite(13, HIGH); // set the LED on
delay(1); // wait for a second
digitalWrite(13, LOW); // set the LED off
delay(9); // wait for a second
}
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Multi Sensory Communication

20. Practice
• analogWrite(PWM)
• http://arduino.cc/en/Reference/AnalogWrite
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21. PWM
• PWM(Pulse Width Modulation)
Ｄ = τ/ T
D : duty cycle
τ: pulse
T ： transition
Multi Sensory Communication
ex: 0.25(D) = 1(τ)/4(T)
Pulse
time
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22. PWM
Multi Sensory Communication
Analog Input x 6
Digital Input and
Output x 14
3.3V
Ground
Ground
5V
Power Indicator
External Power
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PWM~
3, 5, 6, 9, 10, 11

23. Stem
Multi Sensory Communication
D11
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24. Practice
void setup() {
pinMode(11, OUTPUT); // 3, 5, 6, 9, 10, 11,
}
void loop() {
analogWrite(11, 255); // 0-255
}
• analogWrite
• http://arduino.cc/en/Reference/AnalogWrite
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25. Sensor
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26. Practice 01
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Potentiometer Twig
(Rotary angle sensor)
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27. Stem
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A0
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28. Arduino IDE
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Serial Monitor
Opens the serial monitor.
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29. Practice 01
const int analogInPin = 0;
int sensorValue = 0;
void setup() {
Serial.begin(9600); // open the serial port at 9600 bps:
}
void loop() {
// read the analog in value:
sensorValue = analogRead(analogInPin);
Serial.println(sensorValue);
delay(1000);
}
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Multi Sensory Communication
-Rotary Angle Sensor ->A0
-※Check the position of GND(Red)

30. Practice 01
• analogRead
• Description
• Reads the value from the specified analog pin.
• It will map input voltages between 0 and 5 volts into integer
values between 0 and 1023.
• Syntax
• analogRead(pin)
• Returns
• Int(0 to 1023)
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31. Practice 01
• Serial.begin
• Description
• Sets the data rate in bits per second (baud) for serial data
transmission.
• For communicating with the computer, use one of these
rates: 300, 1200, 2400, 4800, 9600, 14400, 19200, 28800,
38400, 57600, or 115200.
• Syntax
• Serial.begin(speed)
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32. Practice 01
• Serial.println
• Description
• Prints data to the serial port as human-readable ASCII text
followed by a carriage return character (ASCII 13, or 'r')
and a newline character (ASCII 10, or 'n').
• Syntax
• Serial.println(val)
Serial.println(val, format)
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33. Advance 01
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• How to check the present angle?
• The angular range is 300 degrees
• Hint
http://arduino.cc/en/Reference/Map

34. Advance 01
const int analogInPin = 0;
int sensorValue = 0;
void setup() {
Serial.begin(9600); // open the serial port at 9600 bps:
}
void loop() {
// read the analog in value:
sensorValue = analogRead(analogInPin);
sensorValue = map(sensorValue, 0, 1023, 0, 300);
Serial.println(sensorValue);
delay(1000);
}
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Multi Sensory Communication
-Rotary Angle Sensor ->A0
-※Check the position of GND(Red)

35. Practice 02
Multi Sensory Communication
3 axis accelerometer
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36. Stem
Multi Sensory Communication
I2c
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37. Practice 02
• Source Code
• Practice02.txt
• Open Practice02.txt, copy the all, and paste it to Arduino IDE.
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38. Arduino IDE
Multi Sensory Communication
Serial Monitor
Opens the serial monitor.
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39. Practice 02
• Wire Library
• This library allows you to communicate with I2C / TWI devices.
http://www.arduino.cc/en/Reference/Wire
• I2C
• Serial communication method developed by Pilips
• Advantages: it can handle multiple signals with only two signal
cables.
• Disadvantages: its program gets longer.
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40. Practice 03
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3 axis Gyro
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41. Stem
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I2c
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42. Practice 03
• Source Code
• Practice03.txt
• Open Practice03.txt, copy the all, and paste it to Arduino IDE.
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43. Actuator
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44. Practice 04
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knob
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x
Servo motor

45. Stem
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To
knob
5V / GND to SERVO (RED / BROWN)
Digital 9 to SERVO(ORANGE)

46. Practice 04
• Source Code
• Files > Example > Servo > Knob
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47. Practice 04
#include <Servo.h>
Servo myservo; // create servo object to control a servo
int potpin = 0; // analog pin used to connect the potentiometer
int val; // variable to read the value from the analog pin
void setup()
{
myservo.attach(9); // attaches the servo on pin 9 to the servo object
}
void loop()
{
val = analogRead(potpin); // reads the value of the potentiometer (value between 0 and 1023)
val = map(val, 0, 1023, 0, 179);
// scale it to use it with the servo (value between 0 and 180)
myservo.write(val); // sets the servo position according to the scaled value
delay(15); // waits for the servo to get there
}
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48. Practice 05
Multi Sensory Communication
Vibrator
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49. Stem
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Port 9 to vibrator

50. Practice 05
• Source Code
• Files > Example > 3.Analog > Fading
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51. Practice 06
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Vibrator
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x
Mic

52. Stem
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Port 9 to vibrator
Analog 0
to mic

53. Practice 06
• Source Code
• Practice06.txt
• Open Practice06.txt, copy the all, and paste it to Arduino IDE.
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54. Practice 07
Multi Sensory Communication
Piezo Buzzer
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55. Stem
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Port 8 to
Piezo Buzzer

56. Practice 07
• Source Code
• Files > Example > 2.Digital > toneMelody
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57. Practice 08
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Piezo Buzzer
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knob
x

58. Stem
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Port 8 to
Piezo Buzzer
analog 0
to knob

59. Practice 08
• Source Code
• Files > Example > 2.Digital > tonePitchFollower
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60. Trial!!!
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accelerometer
x
Mic