 // Temperature sensors
 TempSensor *temps1;
 
-Button *btnDown;
-Button *btnUp;
-
 // Relays
 Relay *relay1;      // relay 1
+
+// Buttons
+Button *btnLeft;
+Button *btnRight;
+
 
 // 
 byte mode = 0;

const byte REL_1 = 8;

// Buttons
const byte BTN_DOWN = A1;
const byte BTN_UP = A2;

// LCD display pins
const byte LCD_RS = 12;

    cfg.print();
  }

  if (btnLeft->isDown() || btnRight->isDown()){
    switch (mode) {
      case MODE_CONFIG_TEMP: 
        if (btnLeft->isDown()) {
          cfg.data.temp -= tempDelta;
          dp("-");
        }
        
        if (btnRight->isDown()) {
          cfg.data.temp += tempDelta;
          dp("+");
        }
