<arduino code>
const int sampleWindow=38;
unsigned int sample;
unsigned long startMillis=millis();
unsigned int peakToPeak=0;
unsigned int signalMax=0;
unsigned int signalMin=1024;
//clipping indicator variables
boolean clipping = 0;
//data storage variables
byte newData = 0;
byte prevData = 0;
unsigned int time = 0;//keeps time and sends vales to store in timer[] occasionally
int timer[10];//sstorage for timing of events
int slope[10];//storage for slope of events
unsigned int totalTimer;//used to calculate period
unsigned int period;//storage for period of wave
byte index = 0;//current storage index
float frequency;//storage for frequency calculations
int maxSlope = 0;//used to calculate max slope as trigger point
int newSlope;//storage for incoming slope data
//variables for decided whether you have a match
byte noMatch = 0;//counts how many non-matches you've received to reset variables if it's been too long
byte slopeTol = 3;//slope tolerance- adjust this if you need
int timerTol = 10;//timer tolerance- adjust this if you need
//variables for amp detection
unsigned int ampTimer = 0;
byte maxAmp = 0;
byte checkMaxAmp;
byte ampThreshold = 50;//raise if you have a very noisy signal
void setup(){
Serial.begin(9600);
pinMode(13,OUTPUT);//led indicator pin
pinMode(12,OUTPUT);//output pin
cli();//diable interrupts
//set up continuous sampling of analog pin 0 at 38.5kHz
//clear ADCSRA and ADCSRB registers
ADCSRA = 0;
ADCSRB = 0;
ADMUX |= (1 << REFS0); //set reference voltage
ADMUX |= (1 << ADLAR); //left align the ADC value- so we can read highest 8 bits from ADCH register only
ADCSRA |= (1 << ADPS2) | (1 << ADPS0); //set ADC clock with 32 prescaler- 16mHz/32=500kHz
ADCSRA |= (1 << ADATE); //enabble auto trigger
ADCSRA |= (1 << ADIE); //enable interrupts when measurement complete
ADCSRA |= (1 << ADEN); //enable ADC
ADCSRA |= (1 << ADSC); //start ADC measurements
sei();//enable interrupts
}
ISR(ADC_vect) {//when new ADC value ready
PORTB &= B11101111;//set pin 12 low
prevData = newData;//store previous value
newData = ADCH;//get value from A0
if (prevData < 127 && newData >=127){//if increasing and crossing midpoint
newSlope = newData - prevData;//calculate slope
if (abs(newSlope-maxSlope)<slopeTol){//if slopes are ==
//record new data and reset time
slope[index] = newSlope;
timer[index] = time;
time = 0;
if (index == 0){//new max slope just reset
PORTB |= B00010000;//set pin 12 high
noMatch = 0;
index++;//increment index
}
else if (abs(timer[0]-timer[index])<timerTol && abs(slope[0]-newSlope)<slopeTol){//if timer duration and slopes match
//sum timer values
totalTimer = 0;
for (byte i=0;i<index;i++){
totalTimer+=timer[i];
}
period = totalTimer;//set period
//reset new zero index values to compare with
timer[0] = timer[index];
slope[0] = slope[index];
index = 1;//set index to 1
PORTB |= B00010000;//set pin 12 high
noMatch = 0;
}
else{//crossing midpoint but not match
index++;//increment index
if (index > 9){
reset();
}
}
}
else if (newSlope>maxSlope){//if new slope is much larger than max slope
maxSlope = newSlope;
time = 0;//reset clock
noMatch = 0;
index = 0;//reset index
}
else{//slope not steep enough
noMatch++;//increment no match counter
if (noMatch>9){
reset();
}
}
}
if (newData == 0 || newData == 1023){//if clipping
PORTB |= B00100000;//set pin 13 high- turn on clipping indicator led
clipping = 1;//currently clipping
}
time++;//increment timer at rate of 38.5kHz
ampTimer++;//increment amplitude timer
if (abs(127-ADCH)>maxAmp){
maxAmp = abs(127-ADCH);
}
if (ampTimer==1000){
ampTimer = 0;
checkMaxAmp = maxAmp;
maxAmp = 0;
}
}
void reset(){//clea out some variables
index = 0;//reset index
noMatch = 0;//reset match couner
maxSlope = 0;//reset slope
}
void checkClipping(){//manage clipping indicator LED
if (clipping){//if currently clipping
PORTB &= B11011111;//turn off clipping indicator led
clipping = 0;
}
}
void loop(){
checkClipping();
if (checkMaxAmp>ampThreshold){
frequency = 38462/float(period);//calculate frequency timer rate/period
//print results
Serial.print(frequency);
Serial.println(",");
}
delay(900);//delete this if you want
while(millis()-startMillis<sampleWindow)
{
sample=analogRead(0);
if(sample<1024);
{
if(sample>signalMax)
{
signalMax=sample;
}
else if (sample<signalMin)
{
signalMin=sample;
}
}
}
peakToPeak = signalMax-signalMin;
double volts = (peakToPeak * 5.0)/1024;
Serial.println(volts);
Serial.print("\n");
delay(3000);
}
x is frequency
y is Sound Size
> import processing.serial.*; //import the Serial library
> Serial myPort;
> int i;
> String message=null;
>
>
>
> float x; // variable holding the value from A0
> float y; // variable holding the value from A1
>
>
> String portName;
> String val;
>
> void settings()
> {
> size ( 800, 800 ) ; // window size
> delay(3000);
>
> // we are opening the port
> myPort = new Serial(this, Serial.list()[0], 9600);
> myPort.bufferUntil('\n');
>
>
> }
>
> // drawing loop
> void draw()
> {
>
> clear() ; // clean the screen
>
> background(255,0);
>
>
>
>
>
>
> for(float x= 0; x < 535; x += 0){
> fill(255,51, 51);
> ellipse(random(width),random(height),y/2,y/2);
> }
> break;
> for(float x= 536; x < 595; x += 536){
> fill(255,102, 51);
> ellipse(random(width),random(height),y/2,y/2);
> }
> for(float x= 596; x < 670; x += 596){
> fill(255,255, 51);
> ellipse(random(width),random(height),y/2,y/2);
> }
>
> for(float x= 671; x < 750; x += 671){
> fill(51,0, 255);
> ellipse(random(width),random(height),y/2,y/2);
> }
> for(float x= 751; x < 9000; x += 751){
> fill(51,0, 255);
> ellipse(random(width),random(height),y/2,y/2);
> }
>
> }
>
>
> // data support from the serial port
> void serialEvent(Serial i){
> String message = myPort.readStringUntil(10);
> if (message != null)
> {
> print("Received: ");
> println(message);
> x = float(message);
> y =float(message);
> }
>
>
> }
I want visuializing processing code
frequency is color
Sound Size is size
plz why my code isn’t doing
help me
