Hi everybody,
I am trying to make a buzzer go off, as soon as my Pulsesensor Amped does not detect anything I tried to do this by modifying the code and insert a tone and delay input.
This is my code:
/* Pulse Sensor Amped 1.4 by Joel Murphy and Yury Gitman http://www.pulsesensor.com
---------------------- Notes ---------------------- ----------------------
This code:
- Blinks an LED to User's Live Heartbeat PIN 13
- Fades an LED to User's Live HeartBeat
- Determines BPM
- Prints All of the Above to Serial
Read Me:
*/
// Variables
int pulsePin = 0; // Pulse Sensor purple wire connected to analog pin 0
int blinkPin = 13; // pin to blink led at each beat
int fadePin = 5; // pin to do fancy classy fading blink at each beat
int fadeRate = 0; // used to fade LED on with PWM on fadePin
// Volatile Variables, used in the interrupt service routine!
volatile int BPM; // int that holds raw Analog in 0. updated every 2mS
volatile int Signal; // holds the incoming raw data
volatile int IBI = 600; // int that holds the time interval between beats! Must be seeded!
volatile boolean Pulse = false; // "True" when User's live heartbeat is detected. "False" when not a "live beat".
volatile boolean QS = false; // becomes true when Arduoino finds a beat.
// Regards Serial OutPut -- Set This Up to your needs
static boolean serialVisual = false; // Set to 'false' by Default. Re-set to 'true' to see Arduino Serial Monitor ASCII Visual Pulse
void setup(){
pinMode(blinkPin,OUTPUT); // pin that will blink to your heartbeat!
pinMode(fadePin,OUTPUT); // pin that will fade to your heartbeat!
Serial.begin(115200); // we agree to talk fast!
interruptSetup(); // sets up to read Pulse Sensor signal every 2mS
// IF YOU ARE POWERING The Pulse Sensor AT VOLTAGE LESS THAN THE BOARD VOLTAGE,
// UN-COMMENT THE NEXT LINE AND APPLY THAT VOLTAGE TO THE A-REF PIN
// analogReference(EXTERNAL);
}
// Where the Magic Happens
void loop(){
serialOutput() ;
if (QS == true){ // A Heartbeat Was Found
// BPM and IBI have been Determined
// Quantified Self "QS" true when arduino finds a heartbeat
digitalWrite(blinkPin,HIGH); // Blink LED, we got a beat.
fadeRate = 255; // Makes the LED Fade Effect Happen
// Set 'fadeRate' Variable to 255 to fade LED with pulse
serialOutputWhenBeatHappens(); // A Beat Happened, Output that to serial.
QS = false; // reset the Quantified Self flag for next time
}
else {
tone(8,2000,10);
delay(10);
tone(8,2000,10);
delay(10);
tone(8,2000,10);
delay(10);
}
ledFadeToBeat(); // Makes the LED Fade Effect Happen
delay(20); // take a break
}
void ledFadeToBeat(){
fadeRate -= 15; // set LED fade value
fadeRate = constrain(fadeRate,0,255); // keep LED fade value from going into negative numbers!
analogWrite(fadePin,fadeRate); // fade LED
}
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I got the error message:
core.a(Tone.cpp.o): In function __vector_7': /Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/cores/arduino/Tone.cpp:535: multiple definition of __vector_7'
PulseSensorAmped_Arduino_1dot4.cpp.o:/Applications/Interrupt.ino:27: first defined here
I would really appreciate if you could help me with this as I am under time pressure and need to finish this for school.
Thank you in advance!
jon