diff --git a/SensorArray.cpp b/SensorArray.cpp
new file mode 100644
index 0000000..4ea3d45
--- /dev/null
+++ b/SensorArray.cpp
@@ -0,0 +1,90 @@
+#include "SensorArray.h"
+
+#ifndef _SENSOR_ARRAY_h
+#define _SENSOR_ARRAY_h
+#endif
+
+#if defined(ARDUINO) && ARDUINO >= 100
+#include "arduino.h"
+#else
+#include "WProgram.h"
+#endif
+
+class SensorsArray {
+	struct sensor {
+		int pin;
+		int position;
+		//Sensor *sensor;
+		sensor *next;
+	};
+	sensor *head, *tail;
+public:
+	SensorsArray() {
+		head = tail = nullptr;
+	}
+
+	~SensorsArray() {
+		sensor *curr = head;
+		while (curr != nullptr) {
+			sensor *destory = curr;
+			curr = destory->next;
+			delete destory;
+		}
+	}
+
+	//inserts a new node at the tail vs the head
+	void insert(int pinValue, float posValue) {
+		sensor *instance = new sensor();
+		instance->pin = pinValue;
+		instance->position = posValue;
+		tail->next = instance;
+
+		tail = instance;
+	}
+
+	//starting at 0 as the first node. Iterates starting at the head
+	sensor* at(int indexValue) {
+		sensor *node = head;
+		while (indexValue > 0) {
+			node = node->next;
+			indexValue -= 1;
+		}
+
+		return node;
+	}
+};
+
+SensorArray::SensorArray()
+{
+	sensors = SensorsArray();
+}
+
+SensorArray::SensorArray(int pins[], int nPins)
+{
+	N_SENSORS = nPins;
+	for (int pin = 0; pin < N_SENSORS; pin++)
+	{
+		pinMode(pin, INPUT);
+		float pos = 2 / N_SENSORS * pin;
+		sensors.insert(pin, pos);
+	}
+}
+
+
+SensorArray::~SensorArray()
+{
+	sensors.~SensorsArray();
+}
+
+
+double SensorArray::error()
+{
+	float sum1 = 0, sum2 = 0;
+	for (int sensor = 0; sensor < N_SENSORS; sensor++)
+	{
+		//sum1 += sensors.at(sensor)->position * sensors.at(sensor)->sensor.value();
+		//sum2 += sensors.at(sensor)->sensor.value();
+	}
+
+	return sum1 / sum2;
+}
diff --git a/SensorArray.h b/SensorArray.h
new file mode 100644
index 0000000..523701d
--- /dev/null
+++ b/SensorArray.h
@@ -0,0 +1,16 @@
+#pragma once
+
+class SensorsArray;
+
+class SensorArray
+{
+	int N_SENSORS;
+	SensorsArray sensors;
+public:
+	SensorArray();
+	//creates sensors and assign positions from -1 to 1, or left to right
+	SensorArray(int pins[], int nPins);
+	~SensorArray();
+	double error();
+};
+
diff --git a/line-follower.vcxproj b/line-follower.vcxproj
index 7648ada..9e56b13 100644
--- a/line-follower.vcxproj
+++ b/line-follower.vcxproj
@@ -47,7 +47,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\arduino-1.6.7\libraries;C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\arduino-1.6.7\hardware\teensy\avr\libraries;C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\projects\libraries;C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\arduino-1.6.7\hardware\teensy\avr\cores\teensy3;C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\arduino-1.6.7\hardware\teensy\avr\cores\teensy3\avr;C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\arduino-1.6.7\hardware\teensy\avr\cores\teensy3\util;C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\arduino-1.6.7\hardware\teensy\avr\cores\teensy3\utils;C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\arduino-1.6.7\hardware\teensy\avr\cores\teensy3\avr;C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\arduino-1.6.7\hardware\tools\avr/../arm/bin/..\arm-none-eabi\include;C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\projects\line-follower;C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\arduino-1.6.7\hardware\teensy\avr\cores\teensy3;C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\Extensions\aif2jys0.atj\Micro Platforms\default\debuggers\VM_DBG;C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\arduino-1.6.7\libraries;C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\arduino-1.6.7\hardware\teensy\avr\libraries;C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\Extensions\aif2jys0.atj\Micro Platforms\default\debuggers;C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\projects\libraries;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>C:\Users\ericksanc\Documents\GitHub\arduino-1.6.12\libraries;C:\Users\ericksanc\Documents\GitHub\arduino-1.6.12\hardware\arduino\avr\libraries;C:\Users\ericksanc\Documents\Arduino\libraries;C:\Users\ericksanc\Documents\GitHub\arduino-1.6.12\hardware\arduino\avr\cores\arduino;C:\Users\ericksanc\Documents\GitHub\arduino-1.6.12\hardware\arduino\avr\variants\yun;C:\Users\ericksanc\Documents\GitHub\line-follower;C:\Users\ericksanc\Documents\GitHub\arduino-1.6.12\hardware\tools\avr/avr/include/;C:\Users\ericksanc\Documents\GitHub\arduino-1.6.12\hardware\tools\avr//avr/include/avr/;C:\Users\ericksanc\Documents\GitHub\arduino-1.6.12\hardware\tools\avr/lib\gcc\avr\4.8.1\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <ForcedIncludeFiles>C:\Users\Joshua\Desktop\Programs\Portable Programs\Arduino\projects\line-follower\__vm\.line-follower.vsarduino.h;%(ForcedIncludeFiles)</ForcedIncludeFiles>
       <IgnoreStandardIncludePath>false</IgnoreStandardIncludePath>
       <PreprocessorDefinitions>__HARDWARE_MK20dx256__;__HARDWARE_MK20DX256__;_VMDEBUG=1;__MK20DX256__;TEENSYDUINO=127;ARDUINO=10607;F_CPU=96000000;ARDUINO_ARCH_AVR;USB_SERIAL;LAYOUT_US_ENGLISH;__cplusplus=201103L;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -83,8 +83,14 @@
     </None>
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="SenorArray.h" />
+    <ClInclude Include="SensorArray.h" />
     <ClInclude Include="__vm\.line-follower.vsarduino.h" />
   </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="SenorArray.cpp" />
+    <ClCompile Include="SensorArray.cpp" />
+  </ItemGroup>
   <PropertyGroup>
     <DebuggerFlavor>VisualMicroDebugger</DebuggerFlavor>
   </PropertyGroup>