diff --git a/PoC/7seg/7segmentdesign.xls b/PoC/7seg/7segmentdesign.xls
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Binary files /dev/null and b/PoC/7seg/7segmentdesign.xls differ
diff --git a/PoC/7seg/display4/display4.ino b/PoC/7seg/display4/display4.ino
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+++ b/PoC/7seg/display4/display4.ino
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+// Arduino 7 segment x 4 display
+ 
+// Define the LED digit patters, from 0 - 9
+
+// segment layout
+//    0
+// 5     1
+//    6
+// 4     2
+//    3     7
+
+// steve layout
+//    1
+// 3     2
+//    4
+// 6     0
+//    5     7
+
+byte steve_converter(byte inval) {
+  byte outval=0;
+  outval|=(inval & 0x1)<<1;  // seg 0 goes to 1 (plus 1)
+  outval|=(inval & 0x2)<<1;  // seg 1 goes to 2 (plus 1)
+  outval|=(inval & 0x4)>>2;  // seg 2 goes to 0 (minus 2)
+  outval|=(inval & 0x8)<<2;  // seg 3 goes to 5 (plus 2)
+  outval|=(inval & 0x10)<<2; // seg 4 goes to 6 (plus 2)
+  outval|=(inval & 0x20)>>2; // seg 5 goes to 3 (minus 2)
+  outval|=(inval & 0x40)>>2; // seg 6 goes to 4 (minus 2)
+  outval|=(inval & 0x80);    // dot 7 stays
+  return outval;
+}
+
+byte seven_seg_digits[10][7] = { { 1,1,1,1,1,1,0 },  // = 0
+                                                           { 0,1,1,0,0,0,0 },  // = 1
+                                                           { 1,1,0,1,1,0,1 },  // = 2
+                                                           { 1,1,1,1,0,0,1 },  // = 3
+                                                           { 0,1,1,0,0,1,1 },  // = 4
+                                                           { 1,0,1,1,0,1,1 },  // = 5
+                                                           { 1,0,1,1,1,1,1 },  // = 6
+                                                           { 1,1,1,0,0,0,0 },  // = 7
+                                                           { 1,1,1,1,1,1,1 },  // = 8
+                                                           { 1,1,1,0,0,1,1 }   // = 9
+                                                           };
+// http://www.josepino.com/microcontroller/7-segment-ascii
+// http://www.raspberrypi.org/phpBB3/viewtopic.php?t=13645&p=142539
+uint8_t ascii2segments[] = {
+ 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x02, /*   ! " # $ % & '  */
+ 0x80, 0x0f, 0x80, 0x80, 0x04, 0x40, 0x80, 0x80, /* ( ) * + , - . /  */
+ 0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, /* 0 1 2 3 4 5 6 7  */
+ 0x7F, 0x6F, 0x80, 0x80, 0x80, 0x48, 0x80, 0x27, /* 8 9 : ; < = > ?  */
+ 0x80, 0x77, 0x7c, 0x39, 0x5e, 0x79, 0x71, 0x3d, /* @ A B C D E F G  */
+ 0x76, 0x30, 0x1E, 0x76, 0x38, 0x15, 0x37, 0x3f, /* H I J K L M N O  */
+ 0x73, 0x67, 0x31, 0x6d, 0x78, 0x3e, 0x1C, 0x2A, /* P Q R S T U V W  */
+ 0x76, 0x6e, 0x5b, 0x39, 0x80, 0x0F, 0x80, 0x08, /* X Y Z [ \ ] ^ _  */
+ 0x80, 0x5f, 0x7c, 0x58, 0x5e, 0x7b, 0x71, 0x6F, /* ` a b c d e f g  */
+ 0x74, 0x30, 0x0E, 0x76, 0x06, 0x15, 0x54, 0x5c, /* h i j k l m n o  */
+ 0x73, 0x67, 0x50, 0x6d, 0x78, 0x1c, 0x1c, 0x2A, /* p q r s t u v w  */
+ 0x76, 0x6e, 0x5b, 0x39, 0x80, 0x0F, 0x80, 0x08, /* x y z { | } ~    */
+};
+
+//Pin connected to ST_CP of 74HC595
+int latchPin = 8;
+//Pin connected to SH_CP of 74HC595
+int clockPin = 12;
+////Pin connected to DS of 74HC595
+int dataPin = 11;
+
+
+void setup() {                
+  //Start Serial for debuging purposes	
+  Serial.begin(9600);
+  //set pins to output because they are addressed in the main loop
+  pinMode(latchPin, OUTPUT);
+  //    shiftOut(dataPin, clockPin, steve_converter(1<<7)); 
+}
+
+void shiftOut(int myDataPin, int myClockPin, byte myDataOut) {
+  // This shifts 8 bits out MSB first, 
+  //on the rising edge of the clock,
+  //clock idles low
+
+  //internal function setup
+  int i=0;
+  int pinState;
+  pinMode(myClockPin, OUTPUT);
+  pinMode(myDataPin, OUTPUT);
+
+  //clear everything out just in case to
+  //prepare shift register for bit shifting
+  digitalWrite(myDataPin, 0);
+  digitalWrite(myClockPin, 0);
+
+  //for each bit in the byte myDataOut�
+  //NOTICE THAT WE ARE COUNTING DOWN in our for loop
+  //This means that %00000001 or "1" will go through such
+  //that it will be pin Q0 that lights. 
+  for (i=7; i>=0; i--)  {
+    digitalWrite(myClockPin, 0);
+
+    //if the value passed to myDataOut and a bitmask result 
+    // true then... so if we are at i=6 and our value is
+    // %11010100 it would the code compares it to %01000000 
+    // and proceeds to set pinState to 1.
+    if ( myDataOut & (1<<i) ) {
+      pinState= 1;
+    }
+    else {	
+      pinState= 0;
+    }
+
+    //Sets the pin to HIGH or LOW depending on pinState
+    digitalWrite(myDataPin, pinState);
+    //register shifts bits on upstroke of clock pin  
+//    delay(10);
+    digitalWrite(myClockPin, 1);
+    //zero the data pin after shift to prevent bleed through
+//    delay(10);
+    digitalWrite(myDataPin, 0);
+  }
+
+  //stop shifting
+  digitalWrite(myClockPin, 0);
+}
+
+
+void loop() {
+  //count up routine
+  for (int j = 0; j < 9999; j++) {
+    //ground latchPin and hold low for as long as you are transmitting
+    digitalWrite(latchPin, 0);
+    // send data, left char first
+    char dataOut[5];
+    sprintf(dataOut,"%04d",j);
+    for(int i=0; i<4; i++) {
+      shiftOut(dataPin, clockPin, steve_converter(ascii2segments[dataOut[i]-32])); 
+    }
+    //return the latch pin high to signal chip that it 
+    //no longer needs to listen for information
+    delay(500);
+    digitalWrite(latchPin, 1);
+    delay(50);
+  }
+}
+