From f4c7d85ebb33461b5b6a9e9ca88246d29d2ed90c Mon Sep 17 00:00:00 2001
From: Tim Wundenberg <timwundenberg@outlook.de>
Date: Wed, 29 May 2019 21:34:19 +0200
Subject: [PATCH] initial commit

---
 Christmas.ino     | 116 ++++++++++++++++++++++++++++++++++++++++++++++
 Christmas.ino.bak |  77 ++++++++++++++++++++++++++++++
 2 files changed, 193 insertions(+)
 create mode 100644 Christmas.ino
 create mode 100644 Christmas.ino.bak

diff --git a/Christmas.ino b/Christmas.ino
new file mode 100644
index 0000000..a02ff3d
--- /dev/null
+++ b/Christmas.ino
@@ -0,0 +1,116 @@
+#include <LiquidCrystal.h>
+
+const int 
+  rs = 2, 
+  en = 3, 
+  d4 = 4, 
+  d5 = 5, 
+  d6 = 6, 
+  d7 = 7;
+LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
+
+int length = 26;
+char notes[] = "eeeeeeegcde fffffeeeeddedg";
+int beats[] = { 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2};
+
+int tempo = 300;
+
+int LED1  = 12;
+int LED2  = 11;
+int LED3  = 10;
+int SPEAKER = 8;
+int BEATTIME = 100;
+
+
+int zaehler = 0;
+int maxLength = 17;
+const int StringLength = 55;
+char nachricht[StringLength] = "Ich schenke dir einen Gutschein fuer deinen Laptop :-)";
+
+
+void setup() {
+  lcd.begin(16, 2);
+  lcd.print("Frohe Weihnacht");
+
+  pinMode(LED1, OUTPUT);
+  pinMode(LED2, OUTPUT);
+  pinMode(LED3, OUTPUT);
+  pinMode(SPEAKER, OUTPUT);
+}
+
+
+void loop() {
+  for (int i = 0; i < length; i++) {
+    if (notes[i] == ' ') {
+      delay(beats[i] * tempo); // rest
+    } else {
+      playNote(notes[i], beats[i] * tempo);
+    }
+    
+    TurnOnLed(LED1);
+    TurnOnLed(LED2);
+    TurnOnLed(LED3);
+  
+    // pause between notes
+    delay(tempo / 2); 
+
+    
+    lcd.setCursor(0, 1);
+    if ((zaehler + maxLength) > StringLength) {
+      zaehler = 0;
+    }
+    else {
+    
+
+//    if (zaehler == 0)
+//      delay (1000);
+    
+    for (int i = zaehler; i<zaehler + maxLength; i++){
+      lcd.print(nachricht[i]);
+    }
+    
+    zaehler = zaehler + 1;
+//    delay (500);
+    }
+  
+  }  
+  
+}
+
+
+void playNote(char note, int duration) {
+  char names[] = { 'c', 'd', 'e', 'f', 'g', 'a', 'b', 'C' };
+  int tones[] = { 1915, 1700, 1519, 1432, 1275, 1136, 1014, 956 };
+  
+  // play the tone corresponding to the note name
+  for (int i = 0; i < 8; i++) {
+    if (names[i] == note) {
+      playTone(tones[i], duration);
+    }
+  }
+}
+
+void playTone(int tone, int duration) {
+  for (long i = 0; i < duration * 1000L; i += tone * 2) {
+    digitalWrite(SPEAKER, HIGH);
+    delayMicroseconds(tone);
+    digitalWrite(SPEAKER, LOW);
+    delayMicroseconds(tone);
+  }
+}
+
+void TurnOnLed(int pin){
+  digitalWrite(pin, LOW);
+  
+  int r = random(0,2);
+  if (r == 1) {
+    digitalWrite(pin, HIGH);
+  }
+}
+
+
+void TurnOffLed(int pin){
+  if (random(0,1) == 0) {
+    digitalWrite(pin, LOW);
+  }
+}
diff --git a/Christmas.ino.bak b/Christmas.ino.bak
new file mode 100644
index 0000000..8117528
--- /dev/null
+++ b/Christmas.ino.bak
@@ -0,0 +1,77 @@
+
+
+int length = 26;
+char notes[] = "eeeeeeegcde fffffeeeeddedg";
+int beats[] = { 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2};
+
+int tempo = 300;
+
+int LED1  = 12;
+int LED2  = 11;
+int LED3  = 10;
+int SPEAKER = 8;
+int BEATTIME = 100;
+void setup() {
+
+  pinMode(LED1, OUTPUT);
+  pinMode(LED2, OUTPUT);
+  pinMode(LED3, OUTPUT);
+  pinMode(SPEAKER, OUTPUT);
+}
+
+
+void loop() {
+  for (int i = 0; i < length; i++) {
+    if (notes[i] == ' ') {
+      delay(beats[i] * tempo); // rest
+    } else {
+      playNote(notes[i], beats[i] * tempo);
+    }
+    
+    TurnOnLed(LED1);
+    TurnOnLed(LED2);
+    TurnOnLed(LED3);
+  
+    // pause between notes
+    delay(tempo / 2); 
+  }  
+  
+}
+
+
+void playNote(char note, int duration) {
+  char names[] = { 'c', 'd', 'e', 'f', 'g', 'a', 'b', 'C' };
+  int tones[] = { 1915, 1700, 1519, 1432, 1275, 1136, 1014, 956 };
+  
+  // play the tone corresponding to the note name
+  for (int i = 0; i < 8; i++) {
+    if (names[i] == note) {
+      playTone(tones[i], duration);
+    }
+  }
+}
+
+void playTone(int tone, int duration) {
+  for (long i = 0; i < duration * 1000L; i += tone * 2) {
+    digitalWrite(SPEAKER, HIGH);
+    delayMicroseconds(tone);
+    digitalWrite(SPEAKER, LOW);
+    delayMicroseconds(tone);
+  }
+}
+
+void TurnOnLed(int pin){
+  digitalWrite(pin, LOW);
+  
+  int r = random(0,2);
+  if (r == 1) {
+    digitalWrite(pin, HIGH);
+  }
+}
+
+
+void TurnOffLed(int pin){
+  if (random(0,1) == 0) {
+    digitalWrite(pin, LOW);
+  }
+}