19 lines
619 B
Python
Executable File
19 lines
619 B
Python
Executable File
#!/usr/bin/env python3
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import minimalmodbus
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import serial
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slave_address = 0x11
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instrument = minimalmodbus.Instrument('/dev/ttyUSB0', slave_address, close_port_after_each_call=True) # port name, slave address (in decimal)
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instrument.serial.baudrate = 115200
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instrument.serial.bytesize = 8
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instrument.serial.parity = serial.PARITY_EVEN
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instrument.serial.stopbits = 1
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instrument.serial.timeout = 0.05 # seconds
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instrument.mode = minimalmodbus.MODE_RTU # rtu or ascii mode
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instrument.clear_buffers_before_each_transaction = True
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# read
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CO2 = instrument.read_register(9, 1, functioncode=4) * 10
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print(CO2)
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