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ATMEGA_TIMER_2/ATMEGA_TIMER_2.ino

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+// Program: Date and time with RTC DS1302 module
+// Amendment and adaptation: Arduino and Cia
+//
+// Based on the original program Krodal and virtuabotixRTC library
+
+// Load the virtuabotixRTC library
+#include "virtuabotixRTC.h"           
+
+// Determine the pins connected to the module
+// myRTC (clock, data, RST)
+virtuabotixRTC myRTC (6, 7, 8);
+
+void setup () 
+{     
+  Serial.begin
+  (9600); // date and time of initial Information
+  // After to set the entire information, comment the following line
+  // (seconds, minutes, hours, day of week, day of month, month, year)
+  myRTC.setDS1302Time (0, 18, 23, 6, 31, 7, 2021);
+}
+
+void loop () 
+{
+  // Reads the information from the CI
+  myRTC.updateTime ();
+
+  // Print the details in serial monitor
+  Serial.print
+  ("Data "); // Call the routine that prints the day of the week
+  imprime_dia_da_semana (myRTC.dayofweek);
+  Serial.print (", ");
+  Serial.print (myRTC.dayofmonth);
+  Serial.print ("/");
+  Serial.print (myRTC.month);
+  Serial.print ("/");
+  Serial.print (myRTC.year);
+  Serial.print ("");
+  Serial.print
+  (" Time "); // Adds a 0 if the time value is <10
+  if (myRTC.hours <10)
+  {
+    Serial.print ("0");
+  }
+  Serial.print (myRTC.hours);
+  Serial.print
+  (":"); // Adds a 0 if the value of the minutes is <10
+  if (myRTC.minutes <10)
+  {
+    Serial.print ("0");
+  }
+  Serial.print (myRTC.minutes);
+  Serial.print
+  (":"); // Adds a 0 if the value of the latter is <10
+  if (myRTC.seconds <10)
+  {
+    Serial.print ("0");
+  }
+  Serial.println (myRTC.seconds);
+
+  delay (1000);
+}
+
+void imprime_dia_da_semana (int day)
+{
+  switch (day)
+  {
+    case  1:
+    Serial.print
+    ("Sunday");
+    break; case  2:
+    Serial.print
+    ("Second");
+    break; case  3:
+    Serial.print
+    ("Terca");
+    break; case  4:
+    Serial.print
+    ("Wednesday");
+    break; case  5:
+    Serial.print
+    ("Quinta");
+    break; case  6:
+    Serial.print
+    ("Friday");
+    break; case  7:
+    Serial.print
+    ("Saturday"); break;
+  }
+
+
+
+ 
+}