From 9ee717a41b5b3bfd064acf548b7f57e6c56fd6e4 Mon Sep 17 00:00:00 2001
From: Th3maz1ng <re.hertz@laposte.net>
Date: Mon, 27 Apr 2020 10:17:57 +0200
Subject: [PATCH] Added a real begin to the DS1307 begin method

---
 src/libs/RTClib-master/RTClib.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/libs/RTClib-master/RTClib.cpp b/src/libs/RTClib-master/RTClib.cpp
index 2386b7c..753204d 100644
--- a/src/libs/RTClib-master/RTClib.cpp
+++ b/src/libs/RTClib-master/RTClib.cpp
@@ -1,6 +1,7 @@
 // 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
+// Added a real begin verification for the ds1307 27/04/2020 Th3maz1ng
 
 #include <Wire.h>
 #include "RTClib.h"
@@ -239,7 +240,8 @@ static uint8_t bin2bcd (uint8_t val) { return val + 6 * (val / 10); }
 
 boolean RTC_DS1307::begin(void) {
   Wire.begin();
-  return true;
+  Wire.beginTransmission(DS1307_ADDRESS);
+  return Wire.endTransmission() == 0;
 }
 
 uint8_t RTC_DS1307::isrunning(void) {