1 files changed, 20 insertions, 0 deletions
diff --git a/source/rtc.cpp b/source/rtc.cpp
index c355c90..f28a43d 100644
--- a/source/rtc.cpp
+++ b/source/rtc.cpp
@@ -1,3 +1,23 @@
+/**
+ * @file rtc.cpp
+ * @brief Prepares and uses the RTC to count time.
+ *
+ * Copyright (C) 2019 Clyne Sullivan
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
 #include "rtc.hpp"
 #include <bluefruit.h>