142 lines
5.1 KiB
Python
142 lines
5.1 KiB
Python
import json
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import serial
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import time
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# Record the start time of the script
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start_time = time.time()
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# Define the path to the JSON file
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file_path = "/var/www/nebuleair_pro_4g/loop/data.json" # Replace with your actual file path
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url="data.nebuleair.fr"
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#get config
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def load_config(config_file):
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try:
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with open(config_file, 'r') as file:
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config_data = json.load(file)
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return config_data
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except Exception as e:
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print(f"Error loading config file: {e}")
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return {}
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# Define the config file path
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config_file = '/var/www/nebuleair_pro_4g/config.json'
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# Load the configuration data
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config = load_config(config_file)
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# Access the shared variables
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baudrate = config.get('SaraR4_baudrate', 115200)
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device_id = config.get('deviceID', '').upper()
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need_to_log = config.get('loop_log', False)
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ser = serial.Serial(
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port='/dev/ttyAMA2',
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baudrate=baudrate, #115200 ou 9600
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parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
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stopbits=serial.STOPBITS_ONE,
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bytesize=serial.EIGHTBITS,
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timeout = 2
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)
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def read_complete_response(serial_connection, timeout=2, end_of_response_timeout=2):
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response = bytearray()
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serial_connection.timeout = timeout
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end_time = time.time() + end_of_response_timeout
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while True:
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if serial_connection.in_waiting > 0:
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data = serial_connection.read(serial_connection.in_waiting)
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response.extend(data)
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end_time = time.time() + end_of_response_timeout # Reset timeout on new data
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elif time.time() > end_time:
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break
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time.sleep(0.1) # Short sleep to prevent busy waiting
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return response.decode('utf-8')
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# Open and read the JSON file
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try:
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with open(file_path, 'r') as file:
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# Load the data from the file
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data = json.load(file)
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# Print the content of the JSON file
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if need_to_log:
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print("Data from JSON file:")
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print(json.dumps(data, indent=4)) # Pretty print the JSON data
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message = f"{data['PM1']},{data['PM25']},{data['PM10']}"
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#Write Data to saraR4
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#1. Open sensordata.json (with correct data size)
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size_of_string = len(message)
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command = f'AT+UDWNFILE="sensordata.json",{size_of_string}\r'
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ser.write((command + '\r').encode('utf-8'))
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response_SARA_1 = read_complete_response(ser)
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if need_to_log:
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print("Open JSON:")
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print(response_SARA_1)
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time.sleep(1)
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#2. Write to shell
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ser.write(message.encode())
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response_SARA_2 = read_complete_response(ser)
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if need_to_log:
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print("Write to memory:")
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print(response_SARA_2)
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#3. Send to endpoint (with device ID)
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command= f'AT+UHTTPC=0,4,"/pro_4G/data.php?sensor_id={device_id}","server_response.txt","sensordata.json",4\r'
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ser.write((command + '\r').encode('utf-8'))
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response_SARA_3 = read_complete_response(ser)
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if need_to_log:
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print("Send data:")
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print(response_SARA_3)
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# Split response into lines
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lines = response_SARA_3.strip().splitlines()
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# +UUHTTPCR: <profile_id>,<http_command>,<http_result>
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# <http_result>: 1 pour sucess et 0 pour fail
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# +UUHTTPCR: 0,4,1 -> OK
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# +UUHTTPCR: 0,4,0 -> error
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# Extract HTTP response code from the last line
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http_response = lines[-1] # "+UUHTTPCR: 0,4,0"
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parts = http_response.split(',')
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# Check HTTP result
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if len(parts) == 3 and parts[-1] == '0': # The third value indicates success
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print("*****")
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print("!ATTENTION!")
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print("error: HTTP operation failed.")
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print("*****")
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print("resetting the URL (domain name):")
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command = f'AT+UHTTP=0,1,"{url}"\r'
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ser.write((command + '\r').encode('utf-8'))
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response_SARA_31 = read_complete_response(ser)
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if need_to_log:
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print(response_SARA_31)
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else:
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print("HTTP operation successful.")
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#4. Read reply from server
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ser.write(b'AT+URDFILE="server_response.txt"\r')
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response_SARA_4 = read_complete_response(ser)
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if need_to_log:
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print("Reply from server:")
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print(response_SARA_4)
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#5. empty json
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ser.write(b'AT+UDELFILE="sensordata.json"\r')
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response_SARA_5 = read_complete_response(ser)
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if need_to_log:
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print("Empty JSON:")
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print(response_SARA_5)
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# Calculate and print the elapsed time
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elapsed_time = time.time() - start_time
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if need_to_log:
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print(f"Elapsed time: {elapsed_time:.2f} seconds")
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print("-----------------")
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except Exception as e:
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print(f"Error reading the JSON file: {e}") |