Convert Example2 loop to non-blocking

oclyke · oclyke · commit 0d0b549d3f1d · 2020-07-16T11:02:05.000-06:00
This allows the user to see that the alarm fired 'exactly' when they wanted it to.
diff --git a/libraries/RTC/examples/Example2_Set_Alarms/Example2_Set_Alarms.ino b/libraries/RTC/examples/Example2_Set_Alarms/Example2_Set_Alarms.ino
@@ -63,8 +63,11 @@ void loop()
   }
 
   // Print RTC's date and time while waiting for alarm
-  printDateTime();
-  delay(1000);
+  static uint32_t nextPrint = 0;
+  if(millis() > nextPrint){
+    printDateTime();
+    nextPrint = millis() + 1000;
+  }
 }
 
 // Print the RTC's current date and time

Original file line number	Diff line number	Diff line change
`@@ -63,8 +63,11 @@ void loop()`
`63`	`63`	`}`
`64`	`64`
`65`	`65`	`// Print RTC's date and time while waiting for alarm`
`66`		`- printDateTime();`
`67`		`- delay(1000);`
	`66`	`+ static uint32_t nextPrint = 0;`
	`67`	`+ if(millis() > nextPrint){`
	`68`	`+ printDateTime();`
	`69`	`+ nextPrint = millis() + 1000;`
	`70`	`+ }`
`68`	`71`	`}`
`69`	`72`
`70`	`73`	`// Print the RTC's current date and time`