Add new file

pulse.ino

+int  sensorPin=A0;
+void setup() {
+  Serial.begin(9600);
+
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  int pulseValue = 0;
+  pulseValue=analogRead(sensorPin);
+  Serial.println(pulseValue);
+  delay(2000);
+}
\ No newline at end of file