Create ClockDisplay.ino

Author: amirchev7

examples/ClockDisplay.ino

@@ -0,0 +1,105 @@
+/*
+ This class uses the VariableTimedAction library to emulate a clock. 
+*/
+
+// VariableTimedAction - Version: Latest 
+#include <VariableTimedAction.h>
+
+class Clock : public VariableTimedAction {
+private:
+  int hours = 0, minutes = 0, seconds = 0;
+  
+  //updates the clock 
+  unsigned long run() {
+    seconds++;
+    if (seconds == 60) {
+      seconds = 0;
+      minutes++;
+      if (minutes == 60) {
+        minutes = 0;
+        hours++;
+        if (hours == 24) {
+          hours = 0;
+        }
+      }
+    }
+    return 0;
+  }
+  
+public:
+  int getHours() { return hours; }
+  int getMinutes() { return minutes; }
+  int getSeconds() { return seconds; }
+  
+  //starts the clock at 00:00:00
+  Clock() { start(1000); }
+  
+  //starts the clock with the specified time
+  Clock(int hours, int minutes, int seconds)
+    : hours(hours), minutes(minutes), seconds(seconds) {
+    start(1000, false);
+  }
+  
+  //sets the clock to the specified time 
+  setTime(int hours, int minutes, int seconds) {
+    this->hours = hours;
+    this->minutes = minutes;
+    this->seconds = seconds;
+  }
+  
+} clock;
+
+class ClockDisplay : public VariableTimedAction {
+public:
+  ClockDisplay(Clock &clock) {
+    this->clock = &clock;
+  }
+private:
+  Clock * clock;
+  unsigned long run() {
+    Serial.print(clock->getHours());
+    Serial.print(":");
+    Serial.print(clock->getMinutes());
+    Serial.print(":");
+    Serial.println(clock->getSeconds());
+    return 0;
+  }
+} display(clock);
+
+void setup() {
+  //initialize Serial
+  Serial.begin(9600);
+  
+  //obtain current time
+  //prompt user input
+  Serial.println("What is the current time in 24-hour time? (HH:mm:ss)");
+  char input[8];
+  //obtain user input
+  int len = Serial.readBytesUntil(':', input, 8);
+  //null terminate the string
+  input[len] = '\0';
+  //convert string to integer
+  int userHours = atoi(input);
+  
+  len = Serial.readBytesUntil(':', input, 8);
+  //null terminate the string
+  input[len] = '\0';
+  //convert string to integer
+  int userMinutes = atoi(input);
+  
+  len = Serial.readBytesUntil('\n', input, 8);
+  //null terminate the string
+  input[len] = '\0';
+  //convert string to integer
+  int userSeconds = atoi(input);
+  
+  //set the user's time
+  clock.setTime(userHours, userMinutes, userSeconds);
+  //update the time display every 15 seconds
+  display.start(15 * 1000);
+}
+
+void loop() {
+  //check if any actions must be executed
+  VariableTimedAction::updateActions();
+}