From fdd80c1c4d7ef8212397b13d9669b21e4b2f96b2 Mon Sep 17 00:00:00 2001
From: hasenradball <mail@frankhaefele.de>
Date: Thu, 26 Oct 2023 22:09:40 +0200
Subject: [PATCH] header include guard needs underscores

---
 src/DS3231-RTC.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/DS3231-RTC.h b/src/DS3231-RTC.h
index c7e2ded..946a3f1 100644
--- a/src/DS3231-RTC.h
+++ b/src/DS3231-RTC.h
@@ -5,8 +5,8 @@
  *
  */
 
-#ifndef __DS3231-RTC_H__
-#define __DS3231-RTC_H__
+#ifndef __DS3231_RTC_H__
+#define __DS3231_RTC_H__
 
 #include <Arduino.h>
 #include <time.h>