diff --git a/src/libs/RTClib-master/RTClib.cpp b/src/libs/RTClib-master/RTClib.cpp
index 065aa91..108745a 100644
--- a/src/libs/RTClib-master/RTClib.cpp
+++ b/src/libs/RTClib-master/RTClib.cpp
@@ -1,5 +1,6 @@
 // Code by JeeLabs http://news.jeelabs.org/code/
 // Released to the public domain! Enjoy!
+// Added a real begin verification for the ds3231 01/05/2019 Th3maz1ng
 
 #include <Wire.h>
 #include "RTClib.h"
@@ -433,7 +434,8 @@ void RTC_PCF8523::writeSqwPinMode(Pcf8523SqwPinMode mode) {
 
 boolean RTC_DS3231::begin(void) const {
   Wire.begin();
-  return true;
+  Wire.beginTransmission(DS3231_ADDRESS);
+  return Wire.endTransmission() == 0;
 }
 
 bool RTC_DS3231::lostPower(void) const {
diff --git a/src/libs/RTClib-master/RTClib.h b/src/libs/RTClib-master/RTClib.h
index 3c7bc9a..4535fb9 100644
--- a/src/libs/RTClib-master/RTClib.h
+++ b/src/libs/RTClib-master/RTClib.h
@@ -1,5 +1,6 @@
 // Code by JeeLabs http://news.jeelabs.org/code/
 // Released to the public domain! Enjoy!
+// Added a real begin verification for the ds3231 01/05/2019 Th3maz1ng
 
 #ifndef _RTCLIB_H_
 #define _RTCLIB_H_