53 lines
1.7 KiB
Python
53 lines
1.7 KiB
Python
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import serial
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import csv
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import time
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from datetime import datetime
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# Configure the serial port
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ser = serial.Serial('/dev/ttyS0', baudrate=9600, timeout=1)
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# Open the CSV file for writing
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csv_filename = 'gps_data.csv'
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csv_file = open(csv_filename, 'w', newline='')
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csv_writer = csv.writer(csv_file)
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# Write the header row
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csv_writer.writerow(['Timestamp', 'Latitude', 'Longitude'])
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try:
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while True:
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# Read a line from the GPS device
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line = ser.readline().decode('ascii', errors='replace').strip()
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# Check if it's a GPRMC sentence (which contains coordinate data)
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if line.startswith('$GPRMC'):
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parts = line.split(',')
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if len(parts) >= 7 and parts[2] == 'A': # 'A' means data is valid
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# Extract latitude and longitude
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lat = float(parts[3][:2]) + float(parts[3][2:]) / 60
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if parts[4] == 'S':
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lat = -lat
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lon = float(parts[5][:3]) + float(parts[5][3:]) / 60
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if parts[6] == 'W':
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lon = -lon
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# Get current timestamp
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timestamp = datetime.now().isoformat()
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# Write to CSV
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csv_writer.writerow([timestamp, lat, lon])
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csv_file.flush() # Ensure data is written to file
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print(f"Recorded: {timestamp}, Lat: {lat}, Lon: {lon}")
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time.sleep(1) # Wait for 1 second before reading next line
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except KeyboardInterrupt:
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print("Script terminated by user")
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finally:
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# Close the serial port and CSV file
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ser.close()
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csv_file.close()
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print(f"Data saved to {csv_filename}")
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