Hi,
I'm new to Arduino and trying to finish a project for school. I'm using a sound recording module, a potentiometer and a button with 4 leds. The sound module shows the music levels thought the leds, the potentiometer just increases the brightness and the button makes the leds fade. When pressed it should make them fade and when pressed again it should go back to 'showing' the music.
Right now it just turns the leds on and off. Also, all the components may be too much for the 5v. The leds blink rather than just staying on.
I've found tutorials and tried to combine them but I'm really lost.
Thank you for your help!
int potPin= A0; //Declare potPin to be analog pin A0
int LEDPin1= 9; // Declare LEDPin to be arduino pin 9
int LEDPin2= 10;
int LEDPin3 = 11;
int LEDPin4 = 5;
int button= 2;
boolean buttonstate= LOW;
boolean previousbuttonstate = LOW;
boolean ledon= false;
int sound = 13;
int soundvalue= 0;
int brightness = 0; // how bright the LED is
int fadeAmount = 5; // how many points to fade the LED by
int readValue; // Use this variable to read Potentiometer
int writeValue; // Use this variable for writing to LED
void setup() {
pinMode(potPin, INPUT); //set potentiometer Pin to be an input
pinMode(LEDPin1, OUTPUT); //set LEDPin to be an OUTPUT
pinMode(LEDPin2, OUTPUT); //set LEDPin to be an OUTPUT
pinMode(LEDPin3, OUTPUT); //set LEDPin to be an OUTPUT
pinMode(LEDPin4, OUTPUT); //set LEDPin to be an OUTPUT
pinMode(button, INPUT);
pinMode(sound, INPUT);
Serial.begin(9600); // turn on Serial Port
}
boolean debounce(boolean last) //
{
boolean current = digitalRead(button);
if (last !=current)
{ delay(5);
current= digitalRead(button);
}
return current;
}
void loop() {
soundvalue= digitalRead(sound); //reads the sound values and sends them to the leds
digitalWrite(LEDPin1, soundvalue);
digitalWrite(LEDPin2, soundvalue);
digitalWrite(LEDPin3, soundvalue);
digitalWrite(LEDPin4, soundvalue);
Serial.print("Value of sound module:");
Serial.println(soundvalue);
readValue = analogRead(potPin); //Read the voltage on the Potentiometer
writeValue = (20./1023.) * readValue; //Calculate Write Value for LED
analogWrite(LEDPin1, writeValue); //Write to the LED
analogWrite(LEDPin2, writeValue); //Write to the LED
analogWrite(LEDPin3, writeValue); //Write to the LED
analogWrite(LEDPin4, writeValue); //Write to the LED
Serial.print("Potentiometer's value: "); //for debugging print your values
Serial.println(writeValue);
buttonstate=debounce(previousbuttonstate);
if (previousbuttonstate == LOW && buttonstate == HIGH) { //when the button is pressed first, the leds start to fade until the button is pressed again
ledon= !ledon;
digitalWrite(LEDPin1, brightness);
digitalWrite(LEDPin2, brightness);
digitalWrite(LEDPin3, brightness);
digitalWrite(LEDPin4, brightness);
brightness = brightness + fadeAmount; //the fade example from basics arduino
if (brightness <= 0 || brightness >= 255) {
fadeAmount = -fadeAmount;
}
}
previousbuttonstate= buttonstate;
digitalWrite(LEDPin1, ledon);
digitalWrite(LEDPin2, ledon);
digitalWrite(LEDPin3, ledon);
digitalWrite(LEDPin4, ledon);
delay(30);
}