1 files changed, 56 insertions, 0 deletions
diff --git a/main.h b/main.h
new file mode 100755
index 0000000..5b5101f
--- /dev/null
+++ b/main.h
@@ -0,0 +1,56 @@
+// Initialize variables for date time and alarms
+unsigned int sec = 30;
+unsigned int min = 42;
+unsigned int hour = 21;
+unsigned int dayofweek = 7;
+unsigned int date = 27;
+unsigned int month = 7;
+unsigned int year = 19;
+unsigned int century = 20;
+unsigned int alarm1_sec, alarm1_min, alarm1_hour;
+unsigned int alarm2_min, alarm2_hour;
+unsigned int status_reg, alarm1_status, alarm2_status;
+unsigned int control_reg;
+
+// Initialize variables for temperature
+unsigned int temperature_lsb = 0;
+int temperature_msb = 0;
+unsigned char temp_sign = ' ';
+
+// Initialize variable for week day
+char* weekday;
+
+// Initialize variable for detecting seconds change
+unsigned int sec_chg = 0;
+
+// Initialize variables for splitting decimal digits to characters
+unsigned char sec_0, sec_1;
+unsigned char min_0, min_1;
+unsigned char hour_0, hour_1;
+unsigned char day_0, day_1;
+unsigned char month_0, month_1;
+unsigned char year_0, year_1;
+unsigned char temp_0, temp_1, temp_2;
+unsigned char alarm1_sec_0, alarm1_sec_1, alarm1_min_0, alarm1_min_1,
+        alarm1_hour_0, alarm1_hour_1;
+unsigned char alarm2_min_0, alarm2_min_1, alarm2_hour_0, alarm2_hour_1;
+
+// Initialize a variable to use as a buffer for sprintf
+char buf[40];
+
+// Format unsigned int to unsigned chars
+void format_DateTimeChars(void);
+
+// Format msb and lsb for temperature display
+void format_Temperature(void);
+
+// Determine day of week with dayofweek from DS3231
+void getWeekDay(unsigned int);
+
+// Determine Alarm status from control registers
+void Get_Alarm_Status(void);
+
+void display_Intro(void);
+void display_Lcd_Layout(void);
+
+void update_Display(void);
+\ No newline at end of file