diff --git a/COMBINED_LIGHTSTRIP_CODE b/COMBINED_LIGHTSTRIP_CODE
new file mode 100644
index 0000000..a696cb4
--- /dev/null
+++ b/COMBINED_LIGHTSTRIP_CODE
@@ -0,0 +1,176 @@
+#include <Arduino.h>
+#include <NeoPixelBus.h>
+
+#define NUM_LEDS 300 // How many leds in your strip?
+#define DATA_PIN 10 //
+#define BUTTON_PIN 43 //
+#define CLOCK_PIN 8 //
+
+#define white RgbColor(5, 5, 5)
+#define black RgbColor(0, 0, 0)
+
+int roundCounter = 0; //# of rounds to be iterated on
+int correctLED = 88; //an arbitrary number
+int maxRounds = 5;
+int mode; //The mode the user wants to do
+int lightOn = 50; // time light will be on in mode 2
+double loopDelay = 1.0;
+unsigned long correctTime = 0;
+unsigned long reactionTime = 0;
+unsigned long startTime = 0;
+unsigned long loopTime = 0;
+volatile bool buttonFlag = false; // idk
+unsigned volatile long buttonPressTime = millis();
+String color = String("Red"); //Let the user eventually set the color
+
+
+//variable rxn time exclusive variables
+unsigned int randomLED;
+unsigned long startMillis;
+unsigned long endMillis;
+unsigned long elapsedMillis;
+unsigned int randomMicrosecondDelay;
+
+
+NeoPixelBus<DotStarBgrFeature, DotStarSpiMethod> strip(NUM_LEDS, CLOCK_PIN, DATA_PIN);
+
+void buttonPressed() {
+  unsigned long current = millis(); // change perhaps
+  if(buttonPressTime + 200 < current) {
+    buttonFlag = true;
+    buttonPressTime = current;
+    //vibrations are detected by the power supply and are registered as button presses!
+  } // if
+} // buttonPressed
+
+void printPressed(int counter, long delayed, long diff, long correct) {
+  if (abs(diff) < 10){
+     Serial.println("Perfect timing!");
+     Serial.printf("%d, %l, %l \n", counter, delayed, correct);
+  } else if (diff > 0) {
+     Serial.print("Too early! Time difference: ");
+     Serial.printf("%d, %l, %l \n", counter, delayed, abs(diff));
+  } else if (diff < 0) {
+     Serial.print("Too late! Time difference: ");
+     Serial.printf("%d, %l, %l \n", counter, delayed, abs(diff));
+  } // if - else
+      buttonFlag = false;
+} // printPressed
+
+void setup() {
+  Serial.begin(115200);
+  strip.Begin();
+  strip.ClearTo(RgbColor(0, 0, 0));
+  strip.Show();
+
+  pinMode(BUTTON_PIN, INPUT_PULLUP);  //use internal pullup resistor
+  randomSeed(analogRead(0)); //make sure analog pin 0 is't connected!!!
+  attachInterrupt(BUTTON_PIN, buttonPressed, FALLING);
+} // setup
+
+//assumes mode = 1
+void catLoop() {
+  if (roundCounter > maxRounds) {
+      // turn LEDs off
+      strip.Show();
+      Serial.println("Max rounds reached. Stopping program.");
+      return; // Exit the loop function and stop further execution
+  } // if
+for (int i = 0; i < NUM_LEDS; i++) {
+      //turns light on to white, delays, turns it off(black)
+      strip.SetPixelColor(i, white);
+      strip.Show();
+      delayMicroseconds(loopDelay);
+      strip.SetPixelColor(i, white);
+      if (i == correctLED) {
+        correctTime = millis();
+        strip.Show();
+      } // if
+      if (buttonFlag) { // button press output
+        unsigned long timeDiff = correctTime - buttonPressTime;
+        printPressed(roundCounter, loopDelay, timeDiff, correctTime);
+        buttonFlag = false;
+      } // if
+    roundCounter++;
+    } // for
+} // catLoop
+
+//assumes mode = 2
+void fixedRxnTime() {
+     if (roundCounter > maxRounds - 1) {
+      strip.Show();
+      Serial.println("Max rounds reached. Stopping program.");
+      return; // Exit the loop function and stop further execution
+    } // checks for running completion if
+
+    //turns light on to white, delays, turns it off(black)
+    strip.SetPixelColor(correctLED, white);
+    strip.Show();
+    correctTime = millis();
+    delay(lightOn);
+    strip.SetPixelColor(correctLED, black);
+    strip.Show();
+    delayMicroseconds(loopDelay);
+    if (!buttonFlag) {
+       Serial.println("Button missed");
+    } else {
+      buttonFlag = false;
+      unsigned long timeDiff = correctTime - buttonPressTime;
+      printPressed(roundCounter, loopDelay, timeDiff, correctTime);
+    } // button press output
+} //fixedRxnTime
+
+//assumes mode = 3
+void variableRxnTime() {
+  delayMicroseconds(2000000); // waits for 2 seconds
+  while (roundCounter != maxRounds) {
+    randomMicrosecondDelay = random(3p, 6); // generates a random delay so the user cant predict anything
+    delayMicroseconds(randomMicrosecondDelay * 1000000);
+    randomLED = random(10); // illuminates a random light between the range 0 - x
+    strip.SetPixelColor(randomLED, white);
+    strip.Show(); // displays the light
+    startMillis = millis(); // begins taking the time
+    while (!buttonFlag) { // waits for the button to be pressed
+    }
+    buttonFlag = false; // 
+    endMillis = millis(); // takes the final time
+    elapsedMillis = endMillis - startMillis;
+    strip.SetPixelColor(randomLED, black);
+    strip.Show();
+    Serial.println(elapsedMillis);
+    roundCounter++;
+  }
+}
+
+void loop() {
+  Serial.println("Which mode would you like to run?");
+  Serial.println("1 - CAT");
+  Serial.println("2 - Fixed Reaction Time");
+  Serial.println("3 - Variable Reaction Time");
+  Serial.print("Enter Mode Number:");
+  do {
+    mode = Serial.parseInt();
+    while(Serial.available()) Serial.read();
+  } while (mode == 0);
+  Serial.println(mode);
+
+  Serial.println("");
+  Serial.println("");
+  roundCounter = 0; //resets the counter per test after each test concludes
+  switch (mode) {
+    case 1:
+      catLoop();
+      break;
+    case 2:
+      fixedRxnTime();
+      break;
+    case 3:
+      variableRxnTime();
+      break;
+    case 4:
+      //TODO Wtv other tests
+      break;
+    default:
+      break;
+  }
+} // loop
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