diff --git a/mp3files/Nr5.mp3 b/mp3files/Nr5.mp3
new file mode 100644
index 0000000..d43ce6d
Binary files /dev/null and b/mp3files/Nr5.mp3 differ
diff --git a/vscode/singing_picture_serial/.vscode/settings.json b/vscode/singing_picture_serial/.vscode/settings.json
index 7f0005a..0b57d3b 100644
--- a/vscode/singing_picture_serial/.vscode/settings.json
+++ b/vscode/singing_picture_serial/.vscode/settings.json
@@ -1,3 +1,60 @@
 {
-    "svn.ignoreMissingSvnWarning": true
+  "svn.ignoreMissingSvnWarning": true,
+  "C_Cpp_Runner.cCompilerPath": "c:/wingw64/bin/gcc.exe",
+  "C_Cpp_Runner.cppCompilerPath": "g++",
+  "C_Cpp_Runner.debuggerPath": "c:/wingw64/bin/gdb.exe",
+  "C_Cpp_Runner.cStandard": "",
+  "C_Cpp_Runner.cppStandard": "",
+  "C_Cpp_Runner.msvcBatchPath": "C:/Program Files/Microsoft Visual Studio/VR_NR/Community/VC/Auxiliary/Build/vcvarsall.bat",
+  "C_Cpp_Runner.useMsvc": false,
+  "C_Cpp_Runner.warnings": [
+    "-Wall",
+    "-Wextra",
+    "-Wpedantic",
+    "-Wshadow",
+    "-Wformat=2",
+    "-Wcast-align",
+    "-Wconversion",
+    "-Wsign-conversion",
+    "-Wnull-dereference"
+  ],
+  "C_Cpp_Runner.msvcWarnings": [
+    "/W4",
+    "/permissive-",
+    "/w14242",
+    "/w14287",
+    "/w14296",
+    "/w14311",
+    "/w14826",
+    "/w44062",
+    "/w44242",
+    "/w14905",
+    "/w14906",
+    "/w14263",
+    "/w44265",
+    "/w14928"
+  ],
+  "C_Cpp_Runner.enableWarnings": true,
+  "C_Cpp_Runner.warningsAsError": false,
+  "C_Cpp_Runner.compilerArgs": [],
+  "C_Cpp_Runner.linkerArgs": [],
+  "C_Cpp_Runner.includePaths": [],
+  "C_Cpp_Runner.includeSearch": [
+    "*",
+    "**/*"
+  ],
+  "C_Cpp_Runner.excludeSearch": [
+    "**/build",
+    "**/build/**",
+    "**/.*",
+    "**/.*/**",
+    "**/.vscode",
+    "**/.vscode/**"
+  ],
+  "C_Cpp_Runner.useAddressSanitizer": false,
+  "C_Cpp_Runner.useUndefinedSanitizer": false,
+  "C_Cpp_Runner.useLeakSanitizer": false,
+  "C_Cpp_Runner.showCompilationTime": false,
+  "C_Cpp_Runner.useLinkTimeOptimization": false,
+  "C_Cpp_Runner.msvcSecureNoWarnings": false
 }
\ No newline at end of file
diff --git a/vscode/singing_picture_serial/src/main.cpp b/vscode/singing_picture_serial/src/main.cpp
index 6bac149..25fe598 100644
--- a/vscode/singing_picture_serial/src/main.cpp
+++ b/vscode/singing_picture_serial/src/main.cpp
@@ -1,234 +1,339 @@
-
-#include <Arduino.h>
-#define MV_ONE_IS_PLAYING 3100
-#define MS_TO_WAIT_BEFORE_NEXT_MOVE 120000     //ms to wait before new movement is valid
-#define MS_TO_WAIT_BEFORE_VALID_NO_MOVEMEVENT 5000 //ms a no movement phase must be
-#define MS_TO_WAIT_BEFORE_NEXT_PRESS 200
-
-const uint8_t vol_poti_pin = 35;
-const uint8_t vol_down_out = 17;
-const uint8_t button_vol_down = 5;
-const uint8_t button_vol_up = 18;
-const uint8_t button_pin = 2;
-const uint8_t movesensor_pin = 4;
-const uint8_t busyanalog_pin = 36; // to get status of all players
-const uint8_t blue_isplaying_led_pin = 22;
-const uint8_t red_button_pressed_led_pin = 19;
-const uint8_t red_movement_detected_led_pin = 19;
-const uint8_t mp3player_control_pin[] = {15,13,12,14,27,26,25,33,32};
-const uint8_t mp3player_nr = sizeof(mp3player_control_pin)/sizeof(mp3player_control_pin[0]);
-
-
-
-#include "SoftwareSerial.h"
-#include "DFRobotDFPlayerMini.h"
-
-SoftwareSerial mySoftwareSerial(19, 23); // RX, TX
-DFRobotDFPlayerMini myDFPlayer;
-
-void play_sequence(void);
-void check_players_state(void);
-void check_button(void);
-void check_movement(void);
-void set_volume(void);
-
-void setup()
-{
-  Serial.begin(115200);
-  Serial.println("Setting button,movement sensor pin to input.");
-  pinMode(vol_down_out, INPUT);
-  digitalWrite(vol_down_out,HIGH);
-  pinMode(button_vol_up, INPUT_PULLUP);
-  pinMode(button_pin, INPUT_PULLUP);
-  pinMode(movesensor_pin, INPUT_PULLDOWN);  
-  Serial.println("Setting all control pins to outputs and disable playing.");
-  for(uint8_t ix = 0; ix < mp3player_nr; ix++)
-  {
-    pinMode(mp3player_control_pin[ix], OUTPUT);
-    digitalWrite(mp3player_control_pin[ix],HIGH);
-    pinMode(mp3player_control_pin[ix], INPUT);
-  }
-
-  mySoftwareSerial.begin(9600);
-  myDFPlayer.begin(mySoftwareSerial);
-  if (!myDFPlayer.begin(mySoftwareSerial, false)) {  //Use softwareSerial to communicate with mp3.
-    Serial.println(F("Unable to begin:"));
-    Serial.println(F("1.Please recheck the connection!"));
-    Serial.println(F("2.Please insert the SD card!"));
-    while(true){
-      delay(0); // Code to compatible with ESP8266 watch dog.
-    }
-  }
-  Serial.println(F("DFPlayer Mini online."));
-  set_volume();
-
-
-  
-  
-
-}
-
-bool movement = false;
-bool there_was_no_movement_in_between = true;
-bool is_playing = false;
-bool button_pressed = false;
-bool button_upvol_pressed = false;
-bool button_downvol_pressed = false;
-unsigned long last_move_ms = 0;
-unsigned long last_no_move_ms = 0;
-unsigned long last_button_ms = 0;
-unsigned long last_upvol_button_ms = 0;
-unsigned long last_downvol_button_ms = 0;
-
-void loop()
-{
-  check_players_state();
-  check_movement();
-  check_button();
-  set_volume();
-  play_sequence();
-  delay(100);
-}
-
-void set_volume(void)
-{
-  static long last_vol = 0;
-  uint16_t vol_poti = analogRead(vol_poti_pin);
-  long vol_mp3 = map(vol_poti, 0, 4095, 2 , 30);
-  if(last_vol != vol_mp3)
-  {
-    myDFPlayer.volume(vol_mp3);  //Set volume value. From 0 to 30  
-    last_vol = vol_mp3;
-  }
-
-}
-
-
-void check_button(void)
-{
- if( MS_TO_WAIT_BEFORE_NEXT_PRESS < millis() - last_button_ms)
- {
-   if(false == button_pressed && LOW == digitalRead(button_pin))
-   {
-    Serial.println("Button pressed ...");
-    last_button_ms = millis();
-    button_pressed = true;
-   }
- }
-
- if( MS_TO_WAIT_BEFORE_NEXT_PRESS < millis() - last_upvol_button_ms)
- {
-   if(false == button_upvol_pressed && LOW == digitalRead(button_vol_up))
-   {
-    Serial.println("Volume up button pressed ...");
-    last_upvol_button_ms = millis();
-    button_upvol_pressed = true;
-   }
- }
-
-  if( MS_TO_WAIT_BEFORE_NEXT_PRESS < millis() - last_downvol_button_ms)
- {
-   if(false == button_downvol_pressed && LOW == digitalRead(button_vol_down))
-   {
-    Serial.println("Volume down button pressed ...");
-    last_downvol_button_ms = millis();
-    button_downvol_pressed = true;
-   }
- }
-
-}
-
-void check_movement(void)
-{
-  int act_movement = digitalRead(movesensor_pin);
-  if(act_movement == HIGH)
-    Serial.println("Movement.");
-  //  Serial.println("No movement.");
-  //else
-  
-  //
-  if(LOW == act_movement )
-  {
-    if( false == there_was_no_movement_in_between)
-    {
-      if(MS_TO_WAIT_BEFORE_VALID_NO_MOVEMEVENT < millis()-last_no_move_ms)
-      {
-        there_was_no_movement_in_between = true;
-        Serial.printf("No movement anymore ...\n");
-      }
-    }    
-  }
-  else
-  {
-    last_no_move_ms = millis();
-  }
-  
-  if( true == is_playing)
-  {
-    last_move_ms = millis();
-  }
-  else
-  {  
-    if(HIGH == act_movement && true == there_was_no_movement_in_between)
-    {
-      there_was_no_movement_in_between = false;
-      if(MS_TO_WAIT_BEFORE_NEXT_MOVE < millis()-last_move_ms)
-      {
-        last_move_ms = millis();
-        movement = true;
-        Serial.printf("New movement detected ...\n");
-      }
-    }
-  }
-}
-
-void check_players_state(void)
-{
-  // 0 ... 0V - 4095 ... 3.3V
-  uint16_t voltage_dig = analogRead(busyanalog_pin);
-  uint16_t voltage_mV = map(voltage_dig,0,4095,0,3300); 
-  //Serial.printf("Voltage at busy pins is: dig=%d , ana=%dmV\n", voltage_dig, voltage_mV);
-  if(voltage_mV < MV_ONE_IS_PLAYING)
-  {
-    if(false == is_playing)
-    {
-      Serial.println("At least one player is playing now.");
-    }
-    is_playing = true;
-  }
-  else
-  {
-    if(true == is_playing)
-    {
-      Serial.println("All players off now.");
-    } 
-    is_playing = false;
-  }
-}
-
-void play_sequence(void)
-{
-  if(false == is_playing)
-  {
-    //Serial.println("All players still off .");
-    if(true == button_pressed || true == movement )
-    {
-      Serial.println("All players starting now.");
-      for(uint8_t ix= 0; ix < mp3player_nr; ix++)
-      { 
-        pinMode(mp3player_control_pin[ix],OUTPUT);
-        digitalWrite(mp3player_control_pin[ix],LOW);
-      }
-      Serial.println("All players started.");
-      delay(500);
-      for(uint8_t ix= 0; ix < mp3player_nr; ix++)
-      {
-        digitalWrite(mp3player_control_pin[ix],HIGH);
-        pinMode(mp3player_control_pin[ix],INPUT);
-      }  
-      is_playing = true;
-    }
-  }
-  button_pressed = false;
-  movement = false;
-}
+
+#include <Arduino.h>
+#define MV_ONE_IS_PLAYING 3100                        //voltage level in mV of the busy signal - if there is one player is playing
+#define MS_MAX_PLAYING_LENGTH 60000                   //if there is one SD card signaling busy all the time - this is the time out for the play detection
+#define MS_TO_WAIT_BEFORE_NEXT_MOVE 120000            //ms to wait before new movement is valid
+#define MS_TO_WAIT_BEFORE_VALID_NO_MOVEMEVENT 10000    //ms a no movement phase must be
+#define MS_TO_WAIT_BEFORE_NEXT_PRESS 200
+
+const uint8_t vol_poti_pin = 35;
+const uint8_t vol_down_out = 17;
+const uint8_t button_stop_pin = 18;
+const uint8_t button_play_pin = 2;
+const uint8_t movesensor_pin = 4;
+const uint8_t busyanalog_pin = 36; // to get status of all players
+
+const uint8_t green_led_pin = 5;
+const uint8_t red_led_pin = 0;
+const uint8_t blue_led_pin = 16;
+
+const uint8_t mp3player_control_pin[] = {15,13,12,14,27,26,25,33,32};
+const uint8_t mp3player_nr = sizeof(mp3player_control_pin)/sizeof(mp3player_control_pin[0]);
+
+
+
+#include "SoftwareSerial.h"
+#include "DFRobotDFPlayerMini.h"
+
+SoftwareSerial mySoftwareSerial(19, 23); // RX, TX
+DFRobotDFPlayerMini myDFPlayer;
+
+void play_sequence(void);
+void check_players_state(void);
+void check_button(void);
+void check_movement(void);
+void set_volume(void);
+void set_leds(void);
+
+void setup()
+{
+  Serial.begin(115200);
+  Serial.println("Setting button,movement sensor pin to input.");
+  digitalWrite(vol_down_out,HIGH);
+  pinMode(button_stop_pin, INPUT_PULLUP);
+  pinMode(button_play_pin, INPUT_PULLUP);
+  pinMode(movesensor_pin, INPUT_PULLDOWN); 
+
+  pinMode(green_led_pin, OUTPUT);
+  pinMode(red_led_pin, OUTPUT);
+  pinMode(blue_led_pin, OUTPUT);
+
+  digitalWrite(red_led_pin, HIGH);
+  delay(500);
+  digitalWrite(red_led_pin, LOW);
+  delay(500);
+  digitalWrite(blue_led_pin,HIGH);
+  delay(500);
+  digitalWrite(blue_led_pin,LOW);
+  delay(500);
+  digitalWrite(green_led_pin,HIGH);
+  delay(500);
+  digitalWrite(green_led_pin,LOW);
+  delay(500); 
+
+  Serial.println("Setting all control pins to outputs and disable playing.");
+  for(uint8_t ix = 0; ix < mp3player_nr; ix++)
+  {
+    pinMode(mp3player_control_pin[ix], OUTPUT);
+    digitalWrite(mp3player_control_pin[ix],HIGH);
+    pinMode(mp3player_control_pin[ix], INPUT);
+  }
+  
+  mySoftwareSerial.begin(9600);
+  myDFPlayer.begin(mySoftwareSerial);
+  if (!myDFPlayer.begin(mySoftwareSerial, false)) {  //Use softwareSerial to communicate with mp3.
+    Serial.println(F("Unable to begin:"));
+    Serial.println(F("1.Please recheck the connection!"));
+    Serial.println(F("2.Please insert the SD card!"));
+    while(true){
+      digitalWrite(red_led_pin, HIGH);
+      delay(500);
+      digitalWrite(red_led_pin, LOW);
+      delay(500);      
+    }
+  }
+
+  myDFPlayer.outputDevice(DFPLAYER_DEVICE_SD); // Setzt SD-Karte als Quelle
+  set_volume();
+  myDFPlayer.EQ(DFPLAYER_EQ_NORMAL); // Equalizer auf normal setzen
+  myDFPlayer.disableDAC();
+  myDFPlayer.stop(); // Sicherstellen, dass nichts ungewollt abgespielt wird
+  // myDFPlayer.sleep();
+  Serial.println(F("DFPlayer Mini online and sleeping."));
+
+}
+
+bool movement = false;
+bool there_was_no_movement_in_between = true;
+bool is_playing = false;                        // forced by software - signals that the play sequence is started
+bool is_busy = false;                           // status of all the busy pins coming from the mp3players itself
+bool button_play_pressed = false;
+bool button_stop_pressed = false;
+unsigned long last_move_ms = 0;
+unsigned long last_no_move_ms = 0;
+bool movement_detected = false;
+bool next_playing_possible = false;
+
+
+
+void loop()
+{
+  check_players_state();
+  check_movement();
+  check_button();
+  set_leds();
+  set_volume();
+  play_sequence();
+  delay(100);
+}
+
+void set_volume(void)
+{
+  static long last_vol = 0;
+  uint16_t vol_poti = analogRead(vol_poti_pin);
+  long vol_mp3 = map(vol_poti, 0, 4095, 2 , 30);
+  if(last_vol != vol_mp3)
+  {
+    digitalWrite(green_led_pin,LOW);
+    Serial.printf("Over all Volume set from %d to %d \n", last_vol, vol_mp3 );
+    myDFPlayer.volume(vol_mp3);  //Set volume value. From 0 to 30  
+    last_vol = vol_mp3;
+    // myDFPlayer.sleep();
+  }
+
+}
+
+
+void check_button(void)
+{
+ static unsigned long last_play_button_ms = 0;
+ static unsigned long last_stop_button_ms = 0;
+
+ unsigned long current_ms = millis();
+ if( MS_TO_WAIT_BEFORE_NEXT_PRESS < current_ms - last_play_button_ms)
+ {
+   if(false == button_play_pressed && LOW == digitalRead(button_play_pin))
+   {
+    Serial.println("Play button pressed ...");
+    last_play_button_ms = current_ms;
+    button_play_pressed = true;
+   }
+ }
+
+ if( MS_TO_WAIT_BEFORE_NEXT_PRESS < current_ms - last_stop_button_ms)
+ {
+   if(false == button_stop_pressed && LOW == digitalRead(button_stop_pin))
+   {
+    Serial.println("Stop button pressed ...");
+    last_stop_button_ms = current_ms;
+    button_stop_pressed = true;
+   }
+ }
+
+}
+
+void check_movement(void)
+{
+  int act_movement = digitalRead(movesensor_pin);
+    
+  if(MS_TO_WAIT_BEFORE_NEXT_MOVE < millis()-last_move_ms)
+  {
+    if(next_playing_possible == false)
+    {
+      Serial.printf("Playing the sounds after next movement is possible now.\n");
+    }
+    next_playing_possible = true;
+  }
+  else
+  {
+    next_playing_possible = false;
+  }
+
+  if(LOW == act_movement )
+  {
+    if(movement_detected == true)
+    {
+      Serial.printf("Changed to No movement at %dms.\n", millis());
+    }
+    movement_detected = false;
+    if( false == there_was_no_movement_in_between)
+    {
+      if(MS_TO_WAIT_BEFORE_VALID_NO_MOVEMEVENT < millis()-last_no_move_ms)
+      {
+        there_was_no_movement_in_between = true;
+        Serial.printf("No movement anymore ...\n");
+      }
+    }
+  }
+  else
+  {
+    if(movement_detected == false)
+    {
+      Serial.printf("Changed to Movement at %dms.\n", millis());
+    }
+    movement_detected = true;
+  
+    if( false == is_playing)
+    {  
+      if(HIGH == act_movement && true == there_was_no_movement_in_between)
+      {
+        Serial.printf("Movement detected after a while of no movemwnt (last movement before %dms)...\n", millis()-last_move_ms);
+        there_was_no_movement_in_between = false;
+        if(true == next_playing_possible)
+        // if(MS_TO_WAIT_BEFORE_NEXT_MOVE < millis()-last_move_ms)
+        {
+          last_move_ms = millis();
+          movement = true;
+          Serial.printf("New movement detected ...\n");
+        }
+      }
+    }
+    else
+    {
+      last_move_ms = millis();
+    }
+    last_no_move_ms = millis();
+  }
+
+}
+
+void check_players_state(void)
+{
+  // 0 ... 0V - 4095 ... 3.3V
+  uint16_t voltage_dig = analogRead(busyanalog_pin);
+  uint16_t voltage_mV = map(voltage_dig,0,4095,0,3300); 
+  //Serial.printf("Voltage at busy pins is: dig=%d , ana=%dmV\n", voltage_dig, voltage_mV);
+  if(voltage_mV < MV_ONE_IS_PLAYING)
+  {
+    if(false == is_busy)
+    {
+      Serial.println("At least one player is in busy mode (Playing or SD card problem?).");
+    }
+    is_busy = true;
+  }
+  else
+  {
+    if(true == is_busy)
+    {
+      Serial.println("All players off now.");
+    } 
+    is_busy = false;
+    is_playing = false;
+    myDFPlayer.stop();          
+    // myDFPlayer.sleep();      
+  }
+}
+
+void play_sequence(void)
+{
+  static unsigned long start_playing_ms = 0;
+
+  if(true == button_stop_pressed)
+  {
+    myDFPlayer.stop();
+    // myDFPlayer.sleep();    
+    is_playing = false;
+    last_move_ms = 0;
+    there_was_no_movement_in_between = true;
+    Serial.println("All players stopped.");
+  }
+  else
+  {
+    if(true == is_playing)
+    {
+        if(MS_MAX_PLAYING_LENGTH < millis()-start_playing_ms){
+          is_playing = false;
+          myDFPlayer.stop();          
+          // myDFPlayer.sleep();
+        }
+    }
+    else
+    {
+      //Serial.println("All players still off .");
+      if(true == button_play_pressed || true == movement )
+      {
+        Serial.println("All players starting now.");
+        myDFPlayer.play();
+        Serial.println("All players started.");
+        start_playing_ms = millis();      
+        is_playing = true;
+      }
+    }
+  }
+
+  button_play_pressed = false;
+  button_stop_pressed = false;
+  movement = false;
+}
+
+void set_leds(void)
+{
+  static unsigned long last_update_blue_led = 0;
+  bool next_play_possible = false;
+
+  if(millis() - last_update_blue_led > 1000)
+  {
+    next_play_possible = next_playing_possible;
+    last_update_blue_led = millis();
+  }
+
+  if(is_playing == true)
+  {
+    digitalWrite(blue_led_pin, HIGH);
+  }
+  else
+  {
+    if(next_play_possible == true)
+    {
+      digitalWrite(blue_led_pin, HIGH);
+    }
+    else    
+    {
+      digitalWrite(blue_led_pin, LOW);
+    }
+   }
+
+
+  if(there_was_no_movement_in_between == false)
+  {
+    digitalWrite(red_led_pin, HIGH);
+  }
+  else
+  {
+    digitalWrite(red_led_pin, LOW);
+  }
+
+  digitalWrite(green_led_pin,HIGH);
+  
+
+}