NEW: sync RTC command

logger/Makefile

@@ -21,6 +21,8 @@ help:
 	@ echo "                        supervisor daemon tool (requires root)"
 	@ echo ""
 	@ echo "    make tail-exec   -- Follow the logger's execution.log"
+	@ echo ""
+	@ echo "    make sync-rtc    -- Send the current system time to the board"
 
 apt-install:
 	sudo apt-get install python python3-pip supervisor
@@ -54,3 +56,6 @@ undeploy:
 
 tail-exec:
 	tail -F logs/execution.log
+
+sync-rtc:
+	${VENV}/bin/python${PYVER} run.py --syncrtc

logger/app/main.py

@@ -281,6 +281,40 @@ class Meteorologger:
                 logging.debug("serial closed")
         return None
 
+    def sync_rtc(self, port_index=None):
+
+        if isinstance(port_index, int):
+            serial_port = self.SERIAL_PORTS[port_index]
+        else:
+            serial_port = self.SERIAL_PORTS[0]
+
+        # if present, the board will be reseted
+        ser = serial.Serial(serial_port, self.CFG['ARDUINO']['BAUD_RATE'],
+                            timeout=self.SERIAL_READ_TIMEOUT, xonxoff=True)
+        print("Serial open <port='{}', baudrate={}>"
+              .format(ser.port, ser.baudrate))
+
+        time.sleep(self.BOARD_RESET_TIMEOUT)
+
+        ser.flush()
+
+        command_ser = 'setrtc' + self.SERIAL_CSV_SEP + \
+            datetime.now().strftime('%Y-%m-%d-%H-%M-%S'
+                                    .replace('-', self.SERIAL_CSV_SEP))
+
+        result = ser.write(bytes(command_ser, 'utf8'))
+
+        print("sent: '{}' ({} bytes)".format(command_ser, result))
+
+        time.sleep(self.CFG['ARDUINO']['RESPONSE_DELAY'])
+
+        result_line = ser.readline()
+
+        print("read: {} ({} bytes)".format(result_line, len(result_line)))
+
+        ser.close()
+
+
     def setup_logging(self):
         if self.verbose:
             # logging.basicConfig(

logger/run.py

@@ -2,4 +2,7 @@ from app import Meteorologger
 import sys
 
 if __name__ == '__main__':
-    Meteorologger(verbose = False if '-s' in sys.argv else True).run()
+    if '--syncrtc' in sys.argv:
+        Meteorologger().sync_rtc()
+    else:
+        Meteorologger(verbose = False if '-s' in sys.argv else True).run()