Initial

README.md

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+twobuttonstimer scetch for Arduino

timetoserial.py

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+#!/usr/bin/env python
+
+# https://forum.arduino.cc/index.php?topic=92457.msg2803014#msg2803014
+
+import time
+import serial.tools.list_ports
+import serial
+import signal # For trapping ctrl-c or SIGINT
+import sys # For exiting program with exit code
+
+def SIGINT_handler(signal, frame):
+        print('Quitting program!')
+        ser.close()
+        sys.exit(0)
+
+signal.signal(signal.SIGINT, SIGINT_handler)
+
+port_names=[]
+a=serial.tools.list_ports.comports()
+for w in a:
+    port_names.append(w.device)
+
+port_names.sort()
+print('\nDetected the following serial ports:\nDon\'t choose /dev/ttyAMA0.')
+i=0
+for w in port_names:
+    print('%d) %s' %(i,w))
+    i=i+1
+total_ports=i # now i= total ports
+
+user_port_selection=input('\nSelect port: (0,1,2...)')
+if (int(user_port_selection)>=total_ports):
+    exit(1) # port selection out of range
+
+ser=serial.Serial(port=port_names[int(user_port_selection)],baudrate=9600,timeout=1)
+
+# ser=serial.Serial("COM1",baudrate=9600,timeout=10)
+while(1):
+    mycmd=ser.read()
+    if (len(mycmd)>0):
+# 10800 is GMT+3
+        epoch='T' + str(int(time.time()) + 10800) + '\n'
+        ser.write((epoch).encode())
+        print (str(epoch))

twobuttonstimer.ino

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+/* 
+ *  based on:
+ *  
+ * TimeSerial.pde
+ * example code illustrating Time library set through serial port messages.
+ *
+ * Messages consist of the letter T followed by ten digit time (as seconds since Jan 1 1970)
+ * you can send the text on the next line using Serial Monitor to set the clock to noon Jan 1 2013
+ * T1357041600  
+ *
+ * A Processing example sketch to automatically send the messages is included in the download
+ * On Linux, you can use "date +T%s\n > /dev/ttyACM0" (UTC time zone)
+ */ 
+ 
+#include <TimeLib.h>
+
+#define TIME_HEADER  "T"   // Header tag for serial time sync message
+#define TIME_REQUEST  7    // ASCII bell character requests a time sync message 
+
+void setup()  {
+  Serial.begin(9600);
+  while (!Serial) ; // Needed for Leonardo only
+  pinMode(8, OUTPUT);
+  pinMode(9, OUTPUT);
+  pinMode(10, OUTPUT);
+  pinMode(13, OUTPUT);
+  setSyncProvider( requestSync);  //set function to call when sync required
+  Serial.println("Waiting for sync message");
+}
+
+void loop(){    
+  if (Serial.available()) {
+    processSyncMessage();
+  }
+  if (timeStatus()!= timeNotSet) {
+    digitalClockDisplay();  
+  }
+  if (timeStatus() == timeSet) {
+    digitalWrite(13, HIGH); // LED on if synced
+  } else {
+    digitalWrite(13, LOW);  // LED off if needs refresh
+  }
+  checkTime();
+  delay(10000);
+}
+
+void checkTime(){
+  if ((hour()==6) && (minute()==1)) {
+    pressSTART();
+  }
+  if ((hour()==8) && (minute()==41)) {
+    pressSTOP();
+  }
+  if ((hour()==15) && (minute()==1)) {
+    pressSTART();
+  }
+  if ((hour()==17) && (minute()==31)) {
+    pressSTOP();
+  }
+}
+
+void pressSTOP(){
+  digitalWrite(8, HIGH);   // turn the LED on (HIGH is the voltage level)
+  delay(500);                       // wait for a second
+  digitalWrite(8, LOW);    // turn the LED off by making the voltage LOW
+  delay(61000);  
+}
+
+void pressSTART(){
+  digitalWrite(9, HIGH);   // turn the LED on (HIGH is the voltage level)
+  delay(500);                       // wait for a second
+  digitalWrite(9, LOW);    // turn the LED off by making the voltage LOW
+  delay(61000);
+}
+
+void digitalClockDisplay(){
+  // digital clock display of the time
+  Serial.print(hour());
+  printDigits(minute());
+  printDigits(second());
+  Serial.print(" ");
+  Serial.print(day());
+  Serial.print(" ");
+  Serial.print(month());
+  Serial.print(" ");
+  Serial.print(year()); 
+  Serial.println(); 
+}
+
+void printDigits(int digits){
+  // utility function for digital clock display: prints preceding colon and leading 0
+  Serial.print(":");
+  if(digits < 10)
+    Serial.print('0');
+  Serial.print(digits);
+}
+
+
+void processSyncMessage() {
+  unsigned long pctime;
+  const unsigned long DEFAULT_TIME = 1357041600; // Jan 1 2013
+
+  if(Serial.find(TIME_HEADER)) {
+     pctime = Serial.parseInt();
+     if( pctime >= DEFAULT_TIME) { // check the integer is a valid time (greater than Jan 1 2013)
+       setTime(pctime); // Sync Arduino clock to the time received on the serial port
+     }
+  }
+}
+
+time_t requestSync()
+{
+  Serial.write(TIME_REQUEST);  
+  return 0; // the time will be sent later in response to serial mesg
+}
+