class TimeServer: GPS_UPDATE_PERIOD = 5000 RTC_UPDATE_PERIOD = 1000 def __init__(self, host, port): # Available devices that we use self.gps = None self.rtc = None self.oled = None self.buzzer = None # GPS information self.last_gps_time = None self.last_gps_position = None self.ipcon = IPConnection() self.ipcon.register_callback(IPConnection.CALLBACK_ENUMERATE, self.cb_enumerate) self.ipcon.register_callback(IPConnection.CALLBACK_CONNECTED, self.cb_connected) self.ipcon.connect(host, int(port)) self.ipcon.enumerate() def cb_enumerate(self, uid, connected_uid, position, hardware_version, firmware_version, device_identifier, enumeration_type): if enumeration_type == IPConnection.ENUMERATION_TYPE_CONNECTED or \ enumeration_type == IPConnection.ENUMERATION_TYPE_AVAILABLE: # Initialize GPS if device_identifier == BrickletGPSV2.DEVICE_IDENTIFIER: self.gps = BrickletGPSV2(uid, self.ipcon) self.gps.set_date_time_callback_period(TimeServer.GPS_UPDATE_PERIOD) self.gps.set_coordinates_callback_period(TimeServer.GPS_UPDATE_PERIOD) self.gps.register_callback(BrickletGPSV2.CALLBACK_DATE_TIME, self.cb_time_updated) self.gps.register_callback(BrickletGPSV2.CALLBACK_COORDINATES, self.cb_location_updated) # Initialize OLED display if device_identifier == BrickletOLED128x64.DEVICE_IDENTIFIER: self.oled = BrickletOLED128x64(uid, self.ipcon) self.oled.clear_display() # Initialize RTC if device_identifier == BrickletRealTimeClock.DEVICE_IDENTIFIER: self.rtc = BrickletRealTimeClock(uid, self.ipcon) self.rtc.register_callback(BrickletRealTimeClock.CALLBACK_DATE_TIME, self.cb_rtc_time_update) self.rtc.set_date_time_callback_period(TimeServer.RTC_UPDATE_PERIOD) def cb_connected(self, connected_reason): self.ipcon.enumerate() def cb_time_updated(self, d, t): fix, satelite_num = self.gps.get_status() if fix: year, d = d % 100, int(d/100) month, d = d % 100, int(d/100) day = d % 100 millisecond, t= t % 1000, int(t/1000) second, t = t % 100, int(t/100) minute, t = t % 100, int(t/100) hour = t % 100 self.last_gps_time = datetime(2000+year, month, day, hour, minute, second, microsecond=millisecond*1000, tzinfo=from_zone) self.update_rtc_time(self.last_gps_time) if self.oled: self.oled.write_line(3, 2, "GPS Time: %02d:%02d:%02d.%02d" % (self.last_gps_time.hour, self.last_gps_time.minute, self.last_gps_time.second, millisecond/10)) self.oled.write_line(4, 2, "GPS Date: %02d.%02d.%d" % (self.last_gps_time.day, self.last_gps_time.month, self.last_gps_time.year)) def cb_location_updated(self, latitude, ns, longitude, ew): fix, satelite_num = self.gps.get_status() if fix: self.last_gps_position=GpsLocation(latitude, ns, longitude, ew) if self.oled: self.oled.write_line(6, 1, "Location: %.2f %s %.2f %s" % (self.last_gps_position.latitude, ns, self.last_gps_position.longitude, ew)) def update_rtc_time(self, dt): if self.rtc: self.rtc.set_date_time(dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second, dt.microsecond/10000, dt.weekday()+1) def cb_rtc_time_update(self, year, month, day, hour, minute, second, centisecond, weekday, timestamp): if self.oled: self.oled.write_line(0, 2, "RTC Time: %02d:%02d:%02d.%02d" % (hour, minute, second, centisecond)) self.oled.write_line(1, 2, "RTC Date: %02d.%02d.%d" % (day, month, year)) def get_current_time(self): if self.rtc: year, month, day, hour, minute, second, centisecond, weekday = self.rtc.get_date_time() dt = datetime(year, month, day, hour, minute, second, 0, tzinfo=from_zone) timestamp = (calendar.timegm(dt.timetuple()) * 1000 )+(centisecond*10) # I'm not sure if this is the best way return timestamp else: return 0
class HardwareTimeSource: GPS_UPDATE_PERIOD = 5000 RTC_UPDATE_PERIOD = 1000 def __init__(self, host, port): # Available devices that we use self.gps = None self.rtc = None self.oled = None self.time_handler=None # GPS information self.last_gps_time = None self.last_gps_position = None self.ipcon = IPConnection() self.ipcon.register_callback(IPConnection.CALLBACK_ENUMERATE, self._cb_enumerate) self.ipcon.register_callback(IPConnection.CALLBACK_CONNECTED, self._cb_connected) self.ipcon.connect(host, int(port)) self.ipcon.enumerate() def _cb_enumerate(self, uid, connected_uid, position, hardware_version, firmware_version, device_identifier, enumeration_type): if enumeration_type == IPConnection.ENUMERATION_TYPE_CONNECTED or \ enumeration_type == IPConnection.ENUMERATION_TYPE_AVAILABLE: # Initialize GPS if device_identifier == BrickletGPSV2.DEVICE_IDENTIFIER: self.gps = BrickletGPSV2(uid, self.ipcon) self.gps.set_date_time_callback_period(HardwareTimeSource.GPS_UPDATE_PERIOD) self.gps.set_coordinates_callback_period(HardwareTimeSource.GPS_UPDATE_PERIOD) self.gps.register_callback(BrickletGPSV2.CALLBACK_DATE_TIME, self._cb_time_updated) self.gps.register_callback(BrickletGPSV2.CALLBACK_COORDINATES, self._cb_location_updated) # Initialize OLED display if device_identifier == BrickletOLED128x64.DEVICE_IDENTIFIER: self.oled = BrickletOLED128x64(uid, self.ipcon) self.oled.clear_display() # Initialize RTC if device_identifier == BrickletRealTimeClock.DEVICE_IDENTIFIER: self.rtc = BrickletRealTimeClock(uid, self.ipcon) self.rtc.register_callback(BrickletRealTimeClock.CALLBACK_DATE_TIME, self._cb_rtc_time_update) self.rtc.set_date_time_callback_period(HardwareTimeSource.RTC_UPDATE_PERIOD) if self.rtc and self.gps and self.ready_handler: # We are ready to server time self.ready_handler() def _cb_connected(self, connected_reason): self.ipcon.enumerate() def _cb_time_updated(self, d, t): fix, satelite_num = self.gps.get_status() if fix: year, d = d % 100, int(d/100) month, d = d % 100, int(d/100) day = d % 100 millisecond, t= t % 1000, int(t/1000) second, t = t % 100, int(t/100) minute, t = t % 100, int(t/100) hour = t % 100 self.last_gps_time = datetime(2000+year, month, day, hour, minute, second, microsecond=millisecond*1000, tzinfo=utc_zone) if self.time_handler: self.time_handler(self.last_gps_time) if self.oled: self.oled.write_line(3, 2, "GPS Time: %02d:%02d:%02d.%02d" % (self.last_gps_time.hour, self.last_gps_time.minute, self.last_gps_time.second, millisecond/10)) self.oled.write_line(4, 2, "GPS Date: %02d.%02d.%d" % (self.last_gps_time.day, self.last_gps_time.month, self.last_gps_time.year)) def _cb_location_updated(self, latitude, ns, longitude, ew): fix, satelite_num = self.gps.get_status() if fix: self.last_gps_position=GpsLocation(latitude, ns, longitude, ew) if self.oled: self.oled.write_line(6, 1, "Location: %.2f %s %.2f %s" % (self.last_gps_position.latitude, ns, self.last_gps_position.longitude, ew)) def _cb_rtc_time_update(self, year, month, day, hour, minute, second, centisecond, weekday, timestamp): if self.oled: self.oled.write_line(0, 2, "RTC Time: %02d:%02d:%02d.%02d" % (hour, minute, second, centisecond)) self.oled.write_line(1, 2, "RTC Date: %02d.%02d.%d" % (day, month, year)) def register_gps_time_handler(self, gps_time_handler): self.time_handler=gps_time_handler def register_bricklets_discovery_finished(self, ready_handler): self.ready_handler=ready_handler def get_rtc_time(self): if self.rtc: year, month, day, hour, minute, second, centisecond, weekday = self.rtc.get_date_time() dt = datetime(year, month, day, hour, minute, second, centisecond*10000, tzinfo=utc_zone) return dt else: raise Exception("RTC is not initialized!") def update_rtc_time(self, dt): if self.rtc: # TODO: Check if dt has timezone set to UTC, throw exception otherwise self.rtc.set_date_time(dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second, dt.microsecond/10000, dt.weekday()+1) else: raise Exception("RTC is not initialized!")