Description:

The main idea for this assignment is to use amount of gears and hand-made mechanic components to build up the whole model. Using as much mechanical components as we could and make them all be controlled by one sever motor is another challenge for our project. In this way, we need to spend time on figuring out how these gears connect to each other and how we could fix and set every component into specific position.

Components:

Gears x 6

Rubber Band x 2

Pin x 8

Card Board

Wood

clay (cuckoo bird)

hand-dyeing paper (cuckoo bird)

Arduino Code:

/*
* @author n8agrin
* 20071101
* Listen for a bit from the serial port and then open the doors and push the bird out.
*/

int servoPin = 7; // Control pin for servo motor

int pulseWidth = 0; // Amount to pulse the servo
long lastPulse = 0; // the time in millisecs of the last pulse
int refreshTime = 20; // the time in millisecs needed in between pulses

int MAXPULSE = 1998;
int MINPULSE = 1;

int minPulse = 500;

int val; // variable used to store data from serial port

void setup() {
pinMode(servoPin, OUTPUT); // Set servo pin as an output pin
pulseWidth = minPulse; // Set the motor position to the minimum
Serial.begin(9600); // connect to the serial port
Serial.println("servo ready");
}

void loop() {

val = Serial.read();
//Serial.println(val);
if (val == 'L') { //on
pulseWidth = 1998;
}
else if (val == 'H') { //off
pulseWidth = 1;
}
updateServo(); // update servo position
}

// called every loop().
void updateServo() {
// pulse the servo again if rhe refresh time (20 ms) have passed:
if (millis() - lastPulse >= refreshTime) {
digitalWrite(servoPin, HIGH); // Turn the motor on
delayMicroseconds(pulseWidth); // Length of the pulse sets the motor position
digitalWrite(servoPin, LOW); // Turn the motor off
lastPulse = millis(); // save the time of the last pulse
}
}

Processing Code:

import processing.serial.*;

Serial port;
PFont andale;

void setup(){
size(200,200);
stroke(50);
fill(50);

}

void draw(){
background(255);
int h = hour();
int m = minute();
int s = second();
andale = loadFont("AndaleMono-24.vlw");
textFont(andale, 24);
text(h, width/2-75, 100);
text(":", width/2-50, 100);
text(m, width/2-25, 100);
text(":", width/2, 100);
text(s, width/2+25, 100);
if (m == 0 || m==15 || m==30 || m==45 || keyPressed){
port.write('H');
// println("cuckoo!");
}

else{
// println("off");
port.write('L');
}
}

Before Servo Motor Mounted:

 

 

 

 

 

Servo Motor Mounted:

 

 

Cuckoo bird:

 

 

  

  

  

Videos:

 

http://www.youtube.com/watch?v=TrHsRGi67LY

http://www.youtube.com/watch?v=StEOgtAf_L0