diff --git a/code b/code
new file mode 100644
index 0000000..e5f0bba
--- /dev/null
+++ b/code
@@ -0,0 +1,494 @@
+/*
+  Showing number 0-9 on a Common Anode 7-segment LED display
+  Displays the numbers 0-9 on the display, with one second inbetween.
+    A
+   ---
+F |   | B
+  | G |
+   ---
+E |   | C
+  |   |
+   ---
+    D
+  This example code is in the public domain.
+ */
+ 
+// Pin 2-8 is connected to the 7 segments of the display.
+
+int pinA = 2;
+int pinB = 3;
+int pinC = 4;
+int pinD = 5;
+int pinE = 6;
+int pinF = 7;
+int pinG = 8;
+int D1 = 9;
+int D2 = 10;
+int D3 = 11;
+int D4 = 12;
+
+// the setup routine runs once when you press reset:
+void setup() {                
+  // initialize the digital pins as outputs.
+  pinMode(pinA, OUTPUT);     
+  pinMode(pinB, OUTPUT);     
+  pinMode(pinC, OUTPUT);     
+  pinMode(pinD, OUTPUT);     
+  pinMode(pinE, OUTPUT);     
+  pinMode(pinF, OUTPUT);     
+  pinMode(pinG, OUTPUT);   
+  pinMode(D1, OUTPUT); 
+  pinMode(D2, OUTPUT); 
+  pinMode(D3, OUTPUT);
+  pinMode(D4, OUTPUT);   
+ 
+}
+
+// the loop routine runs over and over again forever:
+void loop() {
+    digitalWrite(D1, HIGH);
+  //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, HIGH);   
+  delay(1000);               // wait for a second
+  
+  digitalWrite(D1, HIGH);
+  //0
+  digitalWrite(pinA, HIGH);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, HIGH);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, HIGH);   
+  delay(1000);               // wait for a second
+
+  digitalWrite(D1, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, HIGH);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+    digitalWrite(D1, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+    digitalWrite(D1, HIGH);
+   //0
+  digitalWrite(pinA, HIGH);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, HIGH);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+
+    digitalWrite(D1, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, HIGH);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+   digitalWrite(D1, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, HIGH);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+   digitalWrite(D1, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, HIGH);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, HIGH);   
+  delay(1000); 
+
+     digitalWrite(D1, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+   digitalWrite(D1, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+}
+    digitalWrite(D2, HIGH);
+  //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, HIGH);   
+  delay(1000);               // wait for a second
+  
+  digitalWrite(D2, HIGH);
+  //0
+  digitalWrite(pinA, HIGH);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, HIGH);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, HIGH);   
+  delay(1000);               // wait for a second
+
+  digitalWrite(D2, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, HIGH);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+    digitalWrite(D2, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+    digitalWrite(D2, HIGH);
+   //0
+  digitalWrite(pinA, HIGH);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, HIGH);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+
+    digitalWrite(D2, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, HIGH);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+   digitalWrite(D2, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, HIGH);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+   digitalWrite(D2, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, HIGH);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, HIGH);   
+  delay(1000); 
+
+     digitalWrite(D2, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+   digitalWrite(D2, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+    digitalWrite(D3, HIGH);
+  //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, HIGH);   
+  delay(1000);               // wait for a second
+  
+  digitalWrite(D3, HIGH);
+  //0
+  digitalWrite(pinA, HIGH);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, HIGH);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, HIGH);   
+  delay(1000);               // wait for a second
+
+  digitalWrite(D3, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, HIGH);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+    digitalWrite(D3, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+    digitalWrite(D3, HIGH);
+   //0
+  digitalWrite(pinA, HIGH);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, HIGH);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+
+    digitalWrite(D3, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, HIGH);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+   digitalWrite(D3, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, HIGH);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+   digitalWrite(D3, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, HIGH);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, HIGH);   
+  delay(1000); 
+
+     digitalWrite(D3, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+   digitalWrite(D3, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+ 
+    digitalWrite(D4, HIGH);
+  //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, HIGH);   
+  delay(1000);               // wait for a second
+  
+  digitalWrite(D4, HIGH);
+  //0
+  digitalWrite(pinA, HIGH);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, HIGH);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, HIGH);   
+  delay(1000);               // wait for a second
+
+  digitalWrite(D4, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, HIGH);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+    digitalWrite(D4, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+    digitalWrite(D4, HIGH);
+   //0
+  digitalWrite(pinA, HIGH);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, HIGH);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+
+    digitalWrite(D4, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, HIGH);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+   digitalWrite(D4, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, HIGH);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+   digitalWrite(D4, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, HIGH);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, HIGH);   
+  digitalWrite(pinG, HIGH);   
+  delay(1000); 
+
+     digitalWrite(D4, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, LOW);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+
+   digitalWrite(D4, HIGH);
+   //0
+  digitalWrite(pinA, LOW);   
+  digitalWrite(pinB, LOW);   
+  digitalWrite(pinC, LOW);   
+  digitalWrite(pinD, LOW);   
+  digitalWrite(pinE, HIGH);   
+  digitalWrite(pinF, LOW);   
+  digitalWrite(pinG, LOW);   
+  delay(1000); 
+}