diff --git a/Artur_Ziolkowski/main.cpp b/Artur_Ziolkowski/main.cpp
new file mode 100644
index 0000000..a9dd213
--- /dev/null
+++ b/Artur_Ziolkowski/main.cpp
@@ -0,0 +1,111 @@
+#include <Arduino.h>
+#include <stdint.h>
+#include <ArduinoJson.h>
+#include <SoftwareSerial.h>
+
+
+const int blueled = 6;
+const int redled = 4;
+const int greenled = 5;
+const int button1 = 2;
+const int button2 = 3;
+void button1_service();
+void button2_service();
+int timer = 0;
+void disco();
+
+enum States { UNKN , // nie wiadomo co sie dzieje
+              DISABLED , // wylaczona dioda
+              LEDR , // zapal c z e r w o n
+              LEDG , // zapal z i e l o n
+              LEDB , // zapal n i e b i e s k
+              DISCO };
+
+States state = UNKN;
+
+void setup() {
+  pinMode(redled, OUTPUT);
+  pinMode(greenled, OUTPUT);
+  pinMode(blueled, OUTPUT);
+
+  pinMode(button1, INPUT_PULLUP);
+  pinMode(button2, INPUT_PULLUP);
+  attachInterrupt(0, button1_service, FALLING);
+  attachInterrupt(1, button2_service, FALLING);
+  Serial.begin(9600);
+}
+
+void loop() {
+ 
+  switch ( state ){
+      case UNKN :
+        break ;
+      case DISABLED :
+        digitalWrite(redled, LOW);
+        digitalWrite(blueled, LOW);
+        digitalWrite(greenled, LOW);
+        break ;
+      case LEDR :
+        digitalWrite(redled, HIGH);
+        digitalWrite(blueled, LOW);
+        digitalWrite(greenled, LOW);
+        break ;
+      case LEDG :
+        digitalWrite(redled, LOW);
+        digitalWrite(blueled, LOW);
+        digitalWrite(greenled, HIGH);
+        break ;
+      case LEDB :
+        digitalWrite(redled, LOW);
+        digitalWrite(blueled, HIGH);
+        digitalWrite(greenled, LOW);
+        break ;
+      case DISCO :
+        disco();
+        break ;
+  }
+} 
+
+void button1_service()
+{
+  state = DISABLED;
+}
+
+void button2_service()
+{
+  switch ( state ){
+      case UNKN :
+        state = LEDR;
+        break ;
+      case DISABLED :
+        state = LEDR;
+        break ;
+      case LEDR :
+        state = LEDG;
+        break ;
+      case LEDG :
+        state = LEDB;
+        break ;
+      case LEDB :
+        state = DISCO;
+        break ;
+      case DISCO :
+        state = LEDR;
+        break ;
+  }
+}
+void disco()
+{
+  int r = 45;
+  int g = 179;
+  int b = 78;
+  for(int i = 0; i < 6; ++i){
+    r = (r + 83) % 255;
+    g = (g + 91) % 255;
+    b = (b + 57) % 255;
+    analogWrite(redled, r);
+    analogWrite(blueled, g);
+    analogWrite(greenled, b);
+    delay(50);
+  }
+}