button test

klingel_sender_nano_serial/klingel_sender_nano_serial.ino

@@ -1,35 +1,33 @@
 int ledPin = LED_BUILTIN;
 int buttonPin = 2; // Button connected to D2 and GND
+
+unsigned long lowTime = millis();
+unsigned long highTime = millis();
+unsigned long difference = 0;
 bool active = false;
 
 void setup() {
   pinMode(ledPin, OUTPUT);
   pinMode(buttonPin, INPUT_PULLUP);
   Serial.begin(9600);
-  Serial.println("Starting doorbell sensor");
+  Serial.println("Starting button test");
 }
 
 void loop() {
   int val = digitalRead(buttonPin);
   
-  if (val == LOW) {
+  if (val == LOW && active == false) {
-    delay(2); // catch flares
+    lowTime = millis();
-    if (val == LOW && active == false) {
+    difference = lowTime - highTime;
-      Serial.println("RING");
+    Serial.print("LOW ");
-      digitalWrite(ledPin, HIGH);
+    Serial.println(difference);
-      active = true;
+    active = true;
-      delay(250);
-    }
-    else {
-      // Serial.println("flare");
-    }
   }
-  else {
+  else if (val == HIGH && active == true) {
-    delay(2); // catch flares
+    highTime = millis();
-    if (val == HIGH) {
+    difference = highTime - lowTime;
-      active = false;
+    Serial.print("HIGH ");
-      digitalWrite(ledPin, LOW);
+    Serial.println(difference);
-    }
+    active = false;
   }
-  
 }