Friday, October 24, 2008
Thursday, October 23, 2008
int audioIn = 0;
int val = 0;
int ledPin1 = 0; // green
int ledPin2 = 2;// blue
int ledPin3 = 4; // yellowint
ledPin4 = 6; // triangle a redint
ledPin5 = 8; // triangle blue
int ledPin6 = 10; // border a
int ledPin7 = 12; //border z
void setup() {
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
pinMode(ledPin3, OUTPUT);
pinMode(ledPin4, OUTPUT);
pinMode(ledPin5, OUTPUT);
pinMode(ledPin6, OUTPUT);
pinMode(ledPin7, OUTPUT);
Serial.begin(9600);
}
void loop() {
val = analogRead(audioIn);
Serial.println(val);
//border a
if (val <=400){
digitalWrite(ledPin6, LOW);
}
else{digitalWrite(ledPin6, HIGH);
}
//border z
if (val <=400){
digitalWrite(ledPin7, LOW);
}
else{
digitalWrite(ledPin7, HIGH);
}
//yellow
if (val >400 && val <=450)
{
digitalWrite(ledPin3, LOW);
}
else{
digitalWrite(ledPin3, HIGH);
}
//blue
if (val >450 && val <=500){
digitalWrite(ledPin2, LOW);
}
else{digitalWrite(ledPin2, HIGH);
}
//green
if (val <>
digitalWrite(ledPin1, LOW);
}
else{digitalWrite(ledPin1, HIGH);
}
// 5 red triangle ,blu tri
if (val >440 && val <=470){
digitalWrite(ledPin4, LOW);
digitalWrite(ledPin5, LOW);
}else{
digitalWrite(ledPin4, HIGH);
digitalWrite(ledPin5, HIGH);}
}
}
last and final code
void setup() {pinMode(ledPin1, OUTPUT);pinMode(ledPin2, OUTPUT);pinMode(ledPin3, OUTPUT);pinMode(ledPin4, OUTPUT);pinMode(ledPin5, OUTPUT);pinMode(ledPin6, OUTPUT);pinMode(ledPin7, OUTPUT);Serial.begin(9600);}
void loop() {val = analogRead(audioIn);Serial.println(val);
//border aif (val <=400){digitalWrite(ledPin6, LOW);
}else{digitalWrite(ledPin6, HIGH);
}//border zif (val <=400){digitalWrite(ledPin7, LOW);
}else{digitalWrite(ledPin7, HIGH);
}//yellowif (val >400 && val <=450){digitalWrite(ledPin3, LOW);
}else{digitalWrite(ledPin3, HIGH);
}//blue if (val >450 && val <=500){digitalWrite(ledPin2, LOW);
}else{digitalWrite(ledPin2, HIGH);
}//greenif (val < 300){digitalWrite(ledPin1, LOW);
}else{digitalWrite(ledPin1, HIGH);
}// 5 red triangle ,blu triif (val >440 && val <=470){digitalWrite(ledPin4, LOW);digitalWrite(ledPin5, LOW);
}else{digitalWrite(ledPin4, HIGH);digitalWrite(ledPin5, HIGH);}
}
the new code !! the final one
int audioIn = 0;int val = 0;int ledPin1 = 0;int ledPin2 = 2;int ledPin3 = 6;int ledPin4 = 4;int ledPin5 = 8;int ledPin6 = 10;int ledPin7 = 11;
void setup() {pinMode(ledPin1, OUTPUT);pinMode(ledPin2, OUTPUT);pinMode(ledPin3, OUTPUT);pinMode(ledPin4, OUTPUT);pinMode(ledPin5, OUTPUT);pinMode(ledPin6, OUTPUT);pinMode(ledPin7, OUTPUT);Serial.begin(9600);}
void loop() {val = analogRead(audioIn);Serial.println(val);
//1 yellowif (val >600 && val <=750){digitalWrite(ledPin5, LOW);
}else{digitalWrite(ledPin5, HIGH);
}
//2 blue pattern if (val >500 && val <=550){digitalWrite(ledPin6, LOW);
}else{digitalWrite(ledPin6, HIGH);
}//3 green triangle if (val >550 && val <=600){digitalWrite(ledPin7, LOW);
}else{digitalWrite(ledPin7, HIGH);
}//4 blue traingle if (val >600 && val <=650){digitalWrite(ledPin4, LOW);
}else{digitalWrite(ledPin4, HIGH);
}// 5 red triangle if (val >600 && val <=700){digitalWrite(ledPin3, LOW);
}else{digitalWrite(ledPin3, HIGH);
}
// 6 yellow border near a if (val <=500){digitalWrite(ledPin2, LOW);
}else{digitalWrite(ledPin2, HIGH);
}
// 7 yellow border near z if (val <=500){digitalWrite(ledPin1, LOW);
}else{digitalWrite(ledPin1, HIGH);
}
}
Idea/ inspiration
Timtim ki harkatein! (what, where, how)
People make 'rangolis' outside their house during Diwali (lasting 5 days) and they often tire of maintaining and looking at the same thing over and over again! 'Timtim' is a dynamic and easy to maintain rangoli(pattern) that reacts to sound and keeps the spirit of festivity alive!
Where does it live?
During Diwali 'Rangolis' are generally placed on the floor outside ones house and that's where Timtim lives. Timtim can be used even after Diwali and can be placed on ceilings or walls.
How does it work?
Timtim reacts to sound and the leds light up proportional to it. It uses a microphone sensor to catch the sound. Various pre defined patterns light up at different frequencies according to the sound produced!
Wednesday, October 22, 2008
Sunday, October 19, 2008
Thursday, October 16, 2008
its finally working!!
int audioIn = 0;
int val = 0;
int ledPin1 = 2;
int ledpin2 = 6;
void setup() {
pinMode(ledPin1, OUTPUT);
Serial.begin(9600);
}
void loop() {
val = analogRead(audioIn);
Serial.println(val);
if (val <=370){
digitalWrite(ledPin1, LOW);
}else{
digitalWrite(ledPin1, HIGH);
}
if (val >=300 && val <=360){
digitalWrite (ledpin2, LOW);
}else{
if(val >=360){
digitalWrite (ledpin2, HIGH);
}
}
}
Wednesday, October 15, 2008
new idea!- LED rangoli

Earlier we had an idea about making a product for the festival of Diwali since it is the festival of lights and a time for celebration. After brainstorming, we came up with the idea of an LED based rangoli. We thought that often times ragolis made during Diwali get ruined before the end of the festival or people tire of looking at the same patterns.
The LED rangoli comes with a few pre fixed patterns and they light up according of the frequency of sound produced (fire crackers, music, bhajans etc..)
After Diwali it could be put on the wall, ceiling etc.
feedback on previous ideas
Monday, October 13, 2008
Thursday, September 25, 2008
Problem
Code
modified with Anders's help
int audioIn = 0;
int val = 0;
int ledPin1 = 2;
void setup() {
pinMode(ledPin1, OUTPUT);
Serial.begin(9600);
}
void loop() {
val = analogRead(audioIn);
Serial.println(val);
if (val <=600){
digitalWrite(ledPin1, HIGH);
}
else{
digitalWrite(ledPin1, LOW);
}
}
datasheet of electret microphone
http://focus.ti.com/lit/ds/symlink/opa344.pdf
Project Description
This product is on the side of a busy road.
What does it do?
It reflects the noise level on the road and stops people from honking aimlessly. Drivers can see the product and judge the decibel levels produced by them collectively.
How does it work?
Sound captured by a mic acts as an input and lights up the led within the product (output). The sound is proportional to the number of lights that shine- the higher the sound, the more the lights shine.
(the form and the material of the product is still being thought of)