diff --git a/Arduino Code/Papa_boiler/Papa_boiler.ino b/Arduino Code/Papa_boiler/Papa_boiler.ino
new file mode 100644
index 0000000..7f88dc4
--- /dev/null
+++ b/Arduino Code/Papa_boiler/Papa_boiler.ino	
@@ -0,0 +1,140 @@
+#include <Adafruit_GFX.h>
+#include <Adafruit_SSD1306.h>
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+// Data wire is plugged into port 2 on the Arduino
+#define ONE_WIRE_BUS 2
+OneWire oneWire(ONE_WIRE_BUS); // (a 4.7K resistor is necessary)
+DallasTemperature sensors(&oneWire);
+DeviceAddress Thermometer; // variable to hold device addresses
+int deviceCount = 0;
+// Addresses of 2 DS18B20s
+uint8_t sensor1[8] = { 0x28, 0x63, 0x92, 0xF3, 0x62, 0x20, 0x01, 0x3C };
+uint8_t sensor2[8] = { 0x28, 0x7F, 0x38, 0x01, 0x63, 0x20, 0x01, 0x49 };
+ 
+#define OLED_RESET 4
+Adafruit_SSD1306 display(OLED_RESET);
+
+#define NUMFLAKES 10
+#define XPOS 0
+#define YPOS 1
+#define DELTAY 2
+
+#define LOGO16_GLCD_HEIGHT 16 
+#define LOGO16_GLCD_WIDTH  16 
+static const unsigned char PROGMEM logo16_glcd_bmp[] =
+{ B00000000, B11000000,
+  B00000001, B11000000,
+  B00000001, B11000000,
+  B00000011, B11100000,
+  B11110011, B11100000,
+  B11111110, B11111000,
+  B01111110, B11111111,
+  B00110011, B10011111,
+  B00011111, B11111100,
+  B00001101, B01110000,
+  B00011011, B10100000,
+  B00111111, B11100000,
+  B00111111, B11110000,
+  B01111100, B11110000,
+  B01110000, B01110000,
+  B00000000, B00110000 };
+
+#if (SSD1306_LCDHEIGHT != 32)
+#error("Height incorrect, please fix Adafruit_SSD1306.h!");
+#endif
+
+const int Led = 9;
+
+const int Relay = 4;
+
+const int diffDegree = 3;
+
+long waitTime = 60000;
+long TimeRequestMillis; 
+
+char* relaystate = "Close";
+
+bool lock = false;
+
+void setup() {
+  Serial.begin(9600);
+  Serial.println("-----------------");
+  Serial.println("");
+  Serial.println("Initialisation...");
+  Serial.println("");
+  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);  // initialize with the I2C addr 0x3C (for the 128x32)
+  display.display();
+  delay(2000);
+
+  // Clear the buffer.
+  display.clearDisplay();
+  
+  pinMode(Relay, OUTPUT);
+  digitalWrite(Relay, LOW);
+
+  TimeRequestMillis = millis();
+}
+   
+
+void loop() {
+
+  sensors.requestTemperatures(); 
+
+  unsigned long currentMillis = millis();
+
+  Serial.print("temperature_Panneaux - ");
+  float temperature_Panneaux = getTemperature(sensor2);
+
+  Serial.print("temperature_Boiler - ");
+  float temperature_Boiler = getTemperature(sensor1);
+
+  if(lock == false){
+  
+    if((temperature_Panneaux > temperature_Boiler + diffDegree) && (lock == false)){
+      digitalWrite(Relay, HIGH);
+      relaystate = "Open";
+      Serial.println("Relay Open");
+    }
+    else{
+      digitalWrite(Relay, LOW);
+      relaystate = "Close"; 
+      Serial.println("Relay Close");
+    }   
+    Serial.println("Lock");
+    lock = true;
+  }
+
+  if(currentMillis - TimeRequestMillis > waitTime){    
+    TimeRequestMillis = currentMillis;
+    Serial.println("Unlocked !");
+    lock = false;
+  }
+    
+  // text display values
+  display.setTextSize(1);
+  display.setTextColor(WHITE);
+  display.setCursor(0,0);
+  display.print("Panneaux: ");
+  display.print(temperature_Panneaux);
+  display.println("C");
+  display.print("Boiler: ");
+  display.print(temperature_Boiler);
+  display.println("C");
+  display.print("Statut relay : ");
+  display.println(relaystate);
+  display.display();
+  delay(2000); //mettre plus ! ;) 
+  display.clearDisplay();
+  
+}
+
+float getTemperature(DeviceAddress deviceAddress)
+{
+  float tempC = sensors.getTempC(deviceAddress);
+  Serial.print(tempC);
+  Serial.print("C");
+  Serial.println();
+  return tempC;
+}
diff --git a/Arduino Code/Papa_boiler/wiring.png b/Arduino Code/Papa_boiler/wiring.png
new file mode 100644
index 0000000..c0b2448
Binary files /dev/null and b/Arduino Code/Papa_boiler/wiring.png differ