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https://github.com/cmur2/python-bme680.git
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75 lines
1.9 KiB
Python
Executable File
75 lines
1.9 KiB
Python
Executable File
#!/usr/bin/env python
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import bme680
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import time
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print("""Display Temperature, Pressure, Humidity and Gas
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Press Ctrl+C to exit
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""")
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try:
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sensor = bme680.BME680(bme680.I2C_ADDR_PRIMARY)
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except IOError:
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sensor = bme680.BME680(bme680.I2C_ADDR_SECONDARY)
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# These calibration data can safely be commented
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# out, if desired.
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print('Calibration data:')
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for name in dir(sensor.calibration_data):
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if not name.startswith('_'):
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value = getattr(sensor.calibration_data, name)
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if isinstance(value, int):
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print('{}: {}'.format(name, value))
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# These oversampling settings can be tweaked to
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# change the balance between accuracy and noise in
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# the data.
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sensor.set_humidity_oversample(bme680.OS_2X)
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sensor.set_pressure_oversample(bme680.OS_4X)
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sensor.set_temperature_oversample(bme680.OS_8X)
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sensor.set_filter(bme680.FILTER_SIZE_3)
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sensor.set_gas_status(bme680.ENABLE_GAS_MEAS)
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print('\n\nInitial reading:')
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for name in dir(sensor.data):
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value = getattr(sensor.data, name)
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if not name.startswith('_'):
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print('{}: {}'.format(name, value))
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sensor.set_gas_heater_temperature(320)
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sensor.set_gas_heater_duration(150)
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sensor.select_gas_heater_profile(0)
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# Up to 10 heater profiles can be configured, each
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# with their own temperature and duration.
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# sensor.set_gas_heater_profile(200, 150, nb_profile=1)
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# sensor.select_gas_heater_profile(1)
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print('\n\nPolling:')
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try:
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while True:
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if sensor.get_sensor_data():
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output = '{0:.2f} C,{1:.2f} hPa,{2:.2f} %RH'.format(
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sensor.data.temperature,
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sensor.data.pressure / 100.0,
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sensor.data.humidity)
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if sensor.data.heat_stable:
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print('{0},{1} Ohms'.format(
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output,
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sensor.data.gas_resistance))
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else:
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print(output)
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time.sleep(1)
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except KeyboardInterrupt:
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pass
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