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64
NPM/firmware_version.py
Normal file
64
NPM/firmware_version.py
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'''
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Script to get NPM firmware version
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need parameter: port
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/usr/bin/python3 /var/www/nebuleair_pro_4g/NPM/firmware_version.py ttyAMA5
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'''
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import serial
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import requests
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import json
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import sys
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parameter = sys.argv[1:] # Exclude the script name
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#print("Parameters received:")
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port='/dev/'+parameter[0]
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ser = serial.Serial(
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port=port,
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baudrate=115200,
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parity=serial.PARITY_EVEN,
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stopbits=serial.STOPBITS_ONE,
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bytesize=serial.EIGHTBITS,
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timeout = 1
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)
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ser.write(b'\x81\x17\x68') #firmware version
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while True:
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try:
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byte_data = ser.readline()
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formatted = ''.join(f'\\x{byte:02x}' for byte in byte_data)
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#print(formatted)
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'''
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la réponse est de type
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\x81\x17\x00\x10\x46\x12
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avec
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\x81 address
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\x17 command code
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\x00 state
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\x10\x46 firmware version
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\x12 checksum
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'''
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# Extract byte 4 and byte 5
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byte4 = byte_data[3] # 4th byte (index 3)
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byte5 = byte_data[4] # 5th byte (index 4)
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firmware_version = int(f"{byte4:02x}{byte5:02x}")
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data = {
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'firmware_version': firmware_version,
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}
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json_data = json.dumps(data)
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print(json_data)
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break
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except KeyboardInterrupt:
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print("User interrupt encountered. Exiting...")
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time.sleep(3)
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exit()
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except:
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# for all other kinds of error, but not specifying which one
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print("Unknown error...")
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time.sleep(3)
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exit()
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69
NPM/get_data.py
Executable file
69
NPM/get_data.py
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'''
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Script to get NPM values
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need parameter: port
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/usr/bin/python3 /var/www/nebuleair_pro_4g/NPM/get_data.py ttyAMA5
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'''
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import serial
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import requests
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import json
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import sys
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parameter = sys.argv[1:] # Exclude the script name
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#print("Parameters received:")
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port='/dev/'+parameter[0]
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ser = serial.Serial(
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port=port,
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baudrate=115200,
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parity=serial.PARITY_EVEN,
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stopbits=serial.STOPBITS_ONE,
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bytesize=serial.EIGHTBITS,
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timeout = 1
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)
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ser.write(b'\x81\x11\x6E') #data10s
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#ser.write(b'\x81\x12\x6D') #data60s
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while True:
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try:
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byte_data = ser.readline()
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#print(byte_data)
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stateByte = int.from_bytes(byte_data[2:3], byteorder='big')
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Statebits = [int(bit) for bit in bin(stateByte)[2:].zfill(8)]
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PM1 = int.from_bytes(byte_data[9:11], byteorder='big')/10
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PM25 = int.from_bytes(byte_data[11:13], byteorder='big')/10
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PM10 = int.from_bytes(byte_data[13:15], byteorder='big')/10
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#print(f"State: {Statebits}")
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#print(f"PM1: {PM1}")
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#print(f"PM25: {PM25}")
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#print(f"PM10: {PM10}")
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#create JSON
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data = {
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'capteurID': 'nebuleairpro1',
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'sondeID':'USB2',
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'PM1': PM1,
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'PM25': PM25,
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'PM10': PM10,
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'sleep' : Statebits[0],
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'degradedState' : Statebits[1],
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'notReady' : Statebits[2],
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'heatError' : Statebits[3],
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't_rhError' : Statebits[4],
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'fanError' : Statebits[5],
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'memoryError' : Statebits[6],
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'laserError' : Statebits[7]
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}
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json_data = json.dumps(data)
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print(json_data)
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break
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except KeyboardInterrupt:
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print("User interrupt encountered. Exiting...")
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time.sleep(3)
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exit()
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except:
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# for all other kinds of error, but not specifying which one
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print("Unknown error...")
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time.sleep(3)
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exit()
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103
NPM/get_data_modbus.py
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103
NPM/get_data_modbus.py
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'''
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Script to get NPM data via Modbus
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need parameter: port
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/usr/bin/python3 /var/www/nebuleair_pro_4g/NPM/get_data_modbus.py ttyAMA5
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Modbus RTU
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[Slave Address][Function Code][Starting Address][Quantity of Registers][CRC]
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Pour récupérer les 5 cannaux (a partir du registre 0x80)
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Request
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\x01\x03\x00\x80\x00\x0A\xE4\x1E
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\x01 Slave Address (slave device address)
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\x03 Function code (read multiple holding registers)
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\x00\x80 Starting Address (The request starts reading from holding register address 0x80 or 128)
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\x00\x0A Quantity of Registers (Requests to read 0x0A or 10 consecutive registers starting from address 50)
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\xE4\x1E Cyclic Redundancy Check (checksum )
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'''
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import serial
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import requests
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import json
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import sys
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import crcmod
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parameter = sys.argv[1:] # Exclude the script name
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#print("Parameters received:")
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port='/dev/'+parameter[0]
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ser = serial.Serial(
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port=port,
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baudrate=115200,
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parity=serial.PARITY_EVEN,
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stopbits=serial.STOPBITS_ONE,
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bytesize=serial.EIGHTBITS,
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timeout = 0.5
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)
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# Define Modbus CRC-16 function
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crc16 = crcmod.predefined.mkPredefinedCrcFun('modbus')
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# Request frame without CRC
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data = b'\x01\x03\x00\x80\x00\x0A'
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# Calculate CRC
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crc = crc16(data)
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crc_low = crc & 0xFF
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crc_high = (crc >> 8) & 0xFF
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# Append CRC to the frame
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request = data + bytes([crc_low, crc_high])
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print(f"Request frame: {request.hex()}")
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ser.write(request)
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while True:
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try:
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byte_data = ser.readline()
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formatted = ''.join(f'\\x{byte:02x}' for byte in byte_data)
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print(formatted)
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# Extract LSW (first 2 bytes) and MSW (last 2 bytes)
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lsw_channel1 = int.from_bytes(byte_data[3:5], byteorder='little')
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msw_chanel1 = int.from_bytes(byte_data[5:7], byteorder='little')
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raw_value_channel1 = (msw_chanel1 << 16) | lsw_channel1
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lsw_channel2 = int.from_bytes(byte_data[7:9], byteorder='little')
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msw_chanel2 = int.from_bytes(byte_data[9:11], byteorder='little')
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raw_value_channel2 = (msw_chanel2 << 16) | lsw_channel2
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lsw_channel3 = int.from_bytes(byte_data[11:13], byteorder='little')
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msw_chanel3 = int.from_bytes(byte_data[13:15], byteorder='little')
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raw_value_channel3 = (msw_chanel3 << 16) | lsw_channel3
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lsw_channel4 = int.from_bytes(byte_data[15:17], byteorder='little')
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msw_chanel4 = int.from_bytes(byte_data[17:19], byteorder='little')
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raw_value_channel4 = (msw_chanel1 << 16) | lsw_channel4
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lsw_channel5 = int.from_bytes(byte_data[19:21], byteorder='little')
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msw_chanel5 = int.from_bytes(byte_data[21:23], byteorder='little')
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raw_value_channel5 = (msw_chanel5 << 16) | lsw_channel5
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print(f"Channel 1 (0.2->0.5): {raw_value_channel1}")
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print(f"Channel 2 (0.5->1.0): {raw_value_channel2}")
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print(f"Channel 3 (1.0->2.5): {raw_value_channel3}")
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print(f"Channel 4 (2.5->5.0): {raw_value_channel4}")
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print(f"Channel 5 (5.0->10.): {raw_value_channel5}")
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break
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except KeyboardInterrupt:
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print("User interrupt encountered. Exiting...")
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time.sleep(3)
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exit()
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except:
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# for all other kinds of error, but not specifying which one
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print("Unknown error...")
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time.sleep(3)
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exit()
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