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arduino-cli/libraries/PulseSensorPlayground/examples/GettingStartedProject/GettingStartedProject.ino

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+
+/*  PulseSensor Starter Project and Signal Tester
+ *  The Best Way to Get Started  With, or See the Raw Signal of, your PulseSensor.com™ & Arduino.
+ *
+ *  Here is a link to the tutorial
+ *  https://pulsesensor.com/pages/code-and-guide
+ *
+ *  WATCH ME (Tutorial Video):
+ *  https://www.youtube.com/watch?v=RbB8NSRa5X4
+ *
+ *
+-------------------------------------------------------------
+1) This shows a live human Heartbeat Pulse.
+2) Live visualization in Arduino's Cool "Serial Plotter".
+3) Blink an LED on each Heartbeat.
+4) This is the direct Pulse Sensor's Signal.
+5) A great first-step in troubleshooting your circuit and connections.
+6) "Human-readable" code that is newbie friendly."
+
+*/
+
+
+//  Variables
+int PulseSensorPurplePin = 0;        // Pulse Sensor PURPLE WIRE connected to ANALOG PIN 0
+int LED13 = 13;   //  The on-board Arduion LED
+
+
+int Signal;                // holds the incoming raw data. Signal value can range from 0-1024
+int Threshold = 550;            // Determine which Signal to "count as a beat", and which to ingore.
+
+
+// The SetUp Function:
+void setup() {
+  pinMode(LED13,OUTPUT);         // pin that will blink to your heartbeat!
+   Serial.begin(9600);         // Set's up Serial Communication at certain speed.
+
+}
+
+// The Main Loop Function
+void loop() {
+
+  Signal = analogRead(PulseSensorPurplePin);  // Read the PulseSensor's value.
+                                              // Assign this value to the "Signal" variable.
+
+   Serial.println(Signal);                    // Send the Signal value to Serial Plotter.
+
+
+   if(Signal > Threshold){                          // If the signal is above "550", then "turn-on" Arduino's on-Board LED.
+     digitalWrite(LED13,HIGH);
+   } else {
+     digitalWrite(LED13,LOW);                //  Else, the sigal must be below "550", so "turn-off" this LED.
+   }
+
+
+delay(10);
+
+
+}