diff --git a/.gitignore b/.gitignore
index 4f64a80..54f860c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1 @@
 *.fzz
-src/hardware_tests/
\ No newline at end of file
diff --git a/src/hardware_test/hardware_test.ino b/src/hardware_test/hardware_test.ino
new file mode 100644
index 0000000..48be2be
--- /dev/null
+++ b/src/hardware_test/hardware_test.ino
@@ -0,0 +1,143 @@
+#include <Adafruit_GFX.h>
+#include <Adafruit_SSD1306.h>
+#include <RTClib.h>
+#include <EMLib.h>
+#include <SD.h>
+
+#define SDA_PIN 4
+#define SCL_PIN 5
+#define SD_CS_PIN 2
+
+#define Sprintln(x) Serial.println(x)
+#define Sprint(x) Serial.print(x)
+#define wait(x) delay(x);
+
+Adafruit_SSD1306 display(128, 64, &Wire);
+RTC_DS3231 rtc;
+Sd2Card SDcard;
+long int milli = 0;
+float gbCardSize = 0;
+
+void setup() {
+  Wire.begin(SDA_PIN,SCL_PIN);
+  pinMode(0,INPUT);
+  Serial.begin(9600);
+  
+  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
+    Sprintln(F("SSD1306 allocation failed"));
+    while(true); // Don't proceed, loop forever
+  }
+
+  if(! rtc.begin()) {
+    Sprintln("Couldn't find RTC");
+    while(true);
+  }
+
+  if(rtc.lostPower()) {
+    Sprintln("RTC lost power !");
+  }
+
+  if(! SDcard.init(SPI_FULL_SPEED, SD_CS_PIN))
+  {
+    Sprintln("Couldn't init SDCard");
+    while(true);
+  }
+
+  gbCardSize = ((float)SDcard.cardSize())*512.0/1024.0/1024.0/1024.0;
+  
+  
+  Sprintln("Empty display :");
+  display.display();
+  wait(1000);
+  Sprintln("Clearing display:");
+  display.clearDisplay();
+  display.setRotation(2);
+  wait(1000);
+  Sprintln("Printing greating message :");
+  display.clearDisplay();
+  display.setTextSize(2);
+  display.setCursor(0,0);
+  display.setTextColor(WHITE);
+
+  display.println(F("Hello YOU !!!"));
+  display.display();
+  wait(1000);
+  Sprintln("Inverting colors:");
+  display.invertDisplay(true);
+  wait(1000);
+  Sprintln("Inverting colors:");
+  display.invertDisplay(false);
+  wait(1000);
+  Sprintln("Dimming :");
+  display.dim(true);
+  wait(1000);
+  Sprintln("Full brightness :");
+  display.dim(false);
+  
+  wait(1000);
+  Sprintln("Printing greating message rotation 0 :");
+  display.clearDisplay();
+  display.setRotation(0);
+  display.setTextSize(2);
+  display.setCursor(0,0);
+  display.setTextColor(WHITE);
+
+  display.println(F("Hello YOU !!!"));
+  display.display();
+  wait(1000);
+  Sprintln("Printing greating message rotation 1 :");
+  display.clearDisplay();
+  display.setRotation(1);
+  display.setTextSize(2);
+  display.setCursor(0,0);
+  display.setTextColor(WHITE);
+
+  display.println(F("Hello YOU !!!"));
+  display.display();
+  wait(1000);
+  Sprintln("Printing greating message rotation 2 :");
+  display.clearDisplay();
+  display.setRotation(2);
+  display.setTextSize(2);
+  display.setCursor(0,0);
+  display.setTextColor(WHITE);
+
+  display.println(F("Hello YOU !!!"));
+  display.display();
+  wait(1000);
+  Sprintln("Printing greating message rotation 3 :");
+  display.clearDisplay();
+  display.setRotation(3);
+  display.setTextSize(2);
+  display.setCursor(0,0);
+  display.setTextColor(WHITE);
+
+  display.println(F("Hello YOU !!!"));
+  display.display();
+  wait(1000);
+  Sprintln("Clearing display:");
+  display.clearDisplay();
+  display.setRotation(2);
+  display.setTextSize(1);
+  
+}
+
+void loop() {
+  if(millis() - milli > 1000)
+  {
+    milli = millis();
+    // put your main code here, to run repeatedly:
+    DateTime time = rtc.now();
+    char time_str[300] = "";
+    sprintf(time_str,"RTC:time--> %d:%d:%d\ndate--> %d/%d/%d\nFree RAM : %d\nSD size :\n%.2f GByte",time.hour(), time.minute(), time.second(), time.day(), time.month(), time.year(),ESP.getFreeHeap(), gbCardSize);
+    display.setCursor(0,0);
+    display.println(time_str);
+    display.display();
+    display.clearDisplay();
+  }
+  if(digitalRead(0) == false)
+  {
+    Sprintln("Flash button pushed");
+    //rtc.adjust(DateTime(2019, 3, 3, 12, 30, 0));
+  }
+}