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Diffstat (limited to 'Time/Examples/Processing/SyncArduinoClock/SyncArduinoClock.pde')
-rw-r--r-- | Time/Examples/Processing/SyncArduinoClock/SyncArduinoClock.pde | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/Time/Examples/Processing/SyncArduinoClock/SyncArduinoClock.pde b/Time/Examples/Processing/SyncArduinoClock/SyncArduinoClock.pde new file mode 100644 index 0000000..4c74d4b --- /dev/null +++ b/Time/Examples/Processing/SyncArduinoClock/SyncArduinoClock.pde @@ -0,0 +1,70 @@ +/** + * SyncArduinoClock. + * + * portIndex must be set to the port connected to the Arduino + * + * The current time is sent in response to request message from Arduino + * or by clicking the display window + * + * The time message is 11 ASCII text characters; a header (the letter 'T') + * followed by the ten digit system time (unix time) + */ + + +import processing.serial.*; + +public static final short portIndex = 1; // select the com port, 0 is the first port +public static final char TIME_HEADER = 'T'; //header byte for arduino serial time message +public static final char TIME_REQUEST = 7; // ASCII bell character +public static final char LF = 10; // ASCII linefeed +public static final char CR = 13; // ASCII linefeed +Serial myPort; // Create object from Serial class + +void setup() { + size(200, 200); + println(Serial.list()); + println(" Connecting to -> " + Serial.list()[portIndex]); + myPort = new Serial(this,Serial.list()[portIndex], 9600); +} + +void draw() +{ + if ( myPort.available() > 0) { // If data is available, + char val = char(myPort.read()); // read it and store it in val + if(val == TIME_REQUEST){ + long t = getTimeNow(); + sendTimeMessage(TIME_HEADER, t); + } + else + { + if(val == LF) + ; //igonore + else if(val == CR) + println(); + else + print(val); // echo everying but time request + } + } +} + +void mousePressed() { + sendTimeMessage( TIME_HEADER, getTimeNow()); +} + + +void sendTimeMessage(char header, long time) { + String timeStr = String.valueOf(time); + myPort.write(header); // send header and time to arduino + myPort.write(timeStr); +} + +long getTimeNow(){ + // java time is in ms, we want secs + GregorianCalendar cal = new GregorianCalendar(); + cal.setTime(new Date()); + int tzo = cal.get(Calendar.ZONE_OFFSET); + int dst = cal.get(Calendar.DST_OFFSET); + long now = (cal.getTimeInMillis() / 1000) ; + now = now + (tzo/1000) + (dst/1000); + return now; +} |