diff --git a/projectEEG/projectEEG2mcu.ino b/projectEEG/projectEEG2mcu.ino
index 582b7e2..5ebe2cd 100644
--- a/projectEEG/projectEEG2mcu.ino
+++ b/projectEEG/projectEEG2mcu.ino
@@ -4,12 +4,120 @@
 #include <M5Core2.h>
 #include "icons.cpp"
 
+///UART SETUP
 #define RX_PIN 19
 #define TX_PIN 27
 
+///UI SETUP
+
+int brightnessValue = 1;
+ButtonColors noDraw = {NODRAW, NODRAW, NODRAW};
+enum screenMode {DARK, LIGHT};
+screenMode COLOR_MODE = DARK;
+
+Button screenModeButton(0, 190, 50, 50, false, "", noDraw);
+Button brightnessButton(55, 190, 50, 50, false, "", noDraw);
+Button restartButton(200, 191, 45, 50, false, "", noDraw);
+Button powerOffButton(260, 186, 55, 55, false, "", noDraw);
+
+uint16_t COLORS[2] = {WHITE, BLACK};
+
+///SETUP
 void setup(){
   Serial.begin(BAUDRATE);
   Serial2.begin(9600, SERIAL_8N1, RX_PIN, TX_PIN);
   M5.begin();
   M5.Axp.SetLcdVoltage(3150);
+
+  // GUI SETUP
+  screenModeButton.addHandler(screenModeHandler, E_TOUCH);
+  brightnessButton.addHandler(brightnessHandler, E_TOUCH);
+  restartButton.addHandler(restartHandler, E_TOUCH);
+  powerOffButton.addHandler(powerOffHandler, E_TOUCH);
+  drawGui(COLOR_MODE);  
+}
+
+///DRAW GUI
+void drawGui(screenMode COLOR_MODE) {
+  M5.Lcd.clear();
+  M5.Lcd.fillScreen((COLORS[COLOR_MODE] - 1) % 2);
+  M5.Lcd.setTextColor(COLORS[COLOR_MODE]);
+
+  if (COLOR_MODE == DARK) {
+    M5.lcd.drawBitmap(280, 5, 30, 50, (uint16_t *) bluetooth_dark);
+  } else {
+    M5.lcd.drawBitmap(280, 5, 30, 50, (uint16_t *) bluetooth_light);
+  }
+
+  M5.Lcd.drawLine(0, 60, 320, 60, COLORS[COLOR_MODE]);
+
+  // BODY
+  M5.Lcd.drawString("Attention", 20, 80, 4);
+  M5.Lcd.drawString("Meditation", 160, 80, 4);
+
+  // BOTTOM
+  M5.Lcd.drawLine(0, 180, 320, 180, COLORS[COLOR_MODE]);
+  screenModeButton.draw();  
+  if (COLOR_MODE == DARK) {
+    M5.lcd.drawBitmap(0, 191, 50, 50, (uint16_t *) modeSwitchDark);
+    M5.lcd.drawBitmap(55, 191, 50, 50, (uint16_t *) brightness_white);
+    M5.lcd.drawBitmap(200, 191, 45, 50, (uint16_t *) restart_white);
+    M5.lcd.drawBitmap(260, 186, 55, 55, (uint16_t *) power_off_white);    
+  } else {
+    M5.lcd.drawBitmap(0, 191, 50, 50, (uint16_t *) modeSwitchLight);
+    M5.lcd.drawBitmap(55, 191, 50, 50, (uint16_t *) brightness);
+    M5.lcd.drawBitmap(200, 191, 45, 50, (uint16_t *) restart);
+    M5.lcd.drawBitmap(260, 186, 55, 55, (uint16_t *) power_off);
+  }
+}
+
+void screenModeHandler(Event& e) {
+  M5.Axp.SetLDOEnable(3, true);
+  delay(125);
+  M5.Axp.SetLDOEnable(3, false);  
+  if (COLOR_MODE == DARK) {
+    COLOR_MODE = LIGHT;
+  } else {
+    COLOR_MODE = DARK;
+  }
+
+  drawGui(COLOR_MODE);
+}
+
+void brightnessHandler(Event& e) {
+  M5.Axp.SetLDOEnable(3, true);
+  delay(125);
+  M5.Axp.SetLDOEnable(3, false);
+  switch (brightnessValue) {
+    case 1:
+      M5.Axp.SetLcdVoltage(2500);
+      brightnessValue += 1;
+      break;
+    case 2:
+      M5.Axp.SetLcdVoltage(2750);
+      brightnessValue += 1;
+      break;
+    case 3:
+      M5.Axp.SetLcdVoltage(2900);
+      brightnessValue += 1;
+      break;
+    case 4:
+      M5.Axp.SetLcdVoltage(3150);
+      brightnessValue = 1;
+      break;
+  }
+}
+
+void restartHandler(Event& e) {
+  M5.Axp.SetLDOEnable(3, true);
+  delay(250);
+  M5.Axp.SetLDOEnable(3, false);  
+  M5.shutdown(1);
+}
+
+void powerOffHandler(Event& e) {
+  M5.Axp.SetLDOEnable(3, true);
+  delay(500);
+  M5.Axp.SetLDOEnable(3, false);  
+  M5.shutdown();  
 }
\ No newline at end of file