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Assignment: Input / Output Coincidence Lab Assignment
Collaborators:
This alarm clock is for those people who like to rise with the sun. The alarm clock will play two melodies when it becomes light outside. You can use the force sensor to set the threshold at which the light will activate the alarm. If it is significantly brighter outside, then the alarm will play a second melody (just in case you slept in!) When the user holds down the force sensor, the LED blinks slowly to let the user know it is in setup mode. When it starts blinking faster, then the Arduino board records the ambient light in the room, and sets that as the threshold to play music.
Ideally, I wanted to make this a morning dove, which would sing when the sun came up until you squeezed its tail. It would have been nice to program in a song like "Here Comes The Sun" by the Beatles
Parts used:
1 force sensor
1 light pot
2 10k resistors
1 22 ohm resistor
1 red led
Arduino board
wires
1 Piezo speaker
you can see me trying to turn off the alarm clock in the morning
This is a close up of the board
/* Light Alarm clock-
* wakes you up when the light outside is just right
*
*
* 2008 Sean Carey
*/
//melody setup
byte names[] = {'c', 'd', 'e', 'f', 'g', 'a', 'b', 'C'};
int tones[] = {1915, 1700, 1519, 1432, 1275, 1136, 1014, 956};
byte melody[] = "2d2a1f2c2d2a2d2c2f2d2a2c2d2a1f2c2d2a2a2g2p8p8p8p";
byte melody2[] = "3b3g3a3f3g3e3f3d3e3c3C3a3b3g3a3f3g3e3f3d3e3c33C";
// count length: 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0
// 10 20 30
int count = 0;
int count2 = 0;
int count3 = 0;
int MAX_COUNT = 24;
int statePin = LOW;
//program setup
int potPin=0; // select input for the photocell
int speakerPin= 7; // output for speaker
int LEDpin = 9; //pin for the LED
int squeezePin = 5; // force sensor input for pin
int ambientLight = 500; //storage for the ambient light
int forceSensor = 400; //stores the value of the force sensor
int inputForce=0; //storage for the input from user
int inputLight=0; //storage fro the input from photo sensor
int playSong=0;//boolean for playing the song
int val=0;
int setcount=0;
void setup(){
pinMode(LEDpin,OUTPUT);
pinMode(speakerPin, OUTPUT);
beginSerial(9600);
Serial.println("ready");
}
void loop(){
inputForce=analogRead(squeezePin); //reads values from the force sensor
//Serial.print("Input Force ");
//Serial.print(inputForce);
//Serial.println();
inputLight = analogRead(potPin); // reads values from the light sensor
//Serial.print("Light value ");
//Serial.print(inputLight);
//Serial.println();
if (inputForce >forceSensor){
//playSong=0;
digitalWrite(LEDpin, HIGH);
if (setcount < 5){
delay(1000);
digitalWrite(LEDpin,LOW);
delay(1000);
}
if (setcount > 5){
ambientLight=inputLight;
delay(500);
Serial.println(ambientLight);
digitalWrite(LEDpin,LOW);
delay(500);
}
setcount=setcount+1;
//Serial.println(setcount);
//digitalWrite(LEDpin, LOW);
}
if (inputForce < forceSensor){
if (count>10){
count=0;
}
if (inputLight > ambientLight+20){
//playSong=1;
Serial.println(inputLight);
digitalWrite(speakerPin, LOW);
for (count = 0; count < MAX_COUNT; count++) {
statePin = !statePin;
//digitalWrite(LEDpin, statePin);
for (count3 = 0; count3 <= (melody[count*2] - 48) * 30; count3++) {
for (count2=0;count2<8;count2++) {
if (names[count2] == melody[count*2 + 1]) {
digitalWrite(speakerPin,HIGH);
delayMicroseconds(tones[count2]);
digitalWrite(speakerPin, LOW);
delayMicroseconds(tones[count2]);
}
if (melody[count*2 + 1] == 'p') {
// make a pause of a certain size
digitalWrite(speakerPin, 0);
delayMicroseconds(500);
}
}
}
}//melody1
if (inputLight > ambientLight+200){
Serial.println(inputLight);
digitalWrite(speakerPin, LOW);
for (count = 0; count < MAX_COUNT; count++) {
statePin = !statePin;
//digitalWrite(LEDpin, statePin);
for (count3 = 0; count3 <= (melody2[count*2] - 48) * 30; count3++) {
for (count2=0;count2<8;count2++) {
if (names[count2] == melody2[count*2 + 1]) {
digitalWrite(speakerPin,HIGH);
delayMicroseconds(tones[count2]);
digitalWrite(speakerPin, LOW);
delayMicroseconds(tones[count2]);
}
if (melody[count*2 + 1] == 'p') {
// make a pause of a certain size
digitalWrite(speakerPin, 0);
delayMicroseconds(500);
}
}
}
}//melody2
}// if it is really bright outside
}//play loop
}
}