38 lines
1.5 KiB
Python
38 lines
1.5 KiB
Python
#!/usr/bin/python
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import Adafruit_BMP.BMP085 as BMP085
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# Default constructor will pick a default I2C bus.
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#
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# For the Raspberry Pi this means you should hook up to the only exposed I2C bus
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# from the main GPIO header and the library will figure out the bus number based
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# on the Pi's revision.
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#
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# For the Beaglebone Black the library will assume bus 1 by default, which is
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# exposed with SCL = P9_19 and SDA = P9_20.
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#sensor = BMP085.BMP085()
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# Optionally you can override the bus number:
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#sensor = BMP085.BMP085(busnum=2)
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# You can also optionally change the BMP085 mode to one of BMP085_ULTRALOWPOWER,
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# BMP085_STANDARD, BMP085_HIGHRES, or BMP085_ULTRAHIGHRES. See the BMP085
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# datasheet for more details on the meanings of each mode (accuracy and power
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# consumption are primarily the differences). The default mode is STANDARD.
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sensor = BMP085.BMP085(mode=BMP085.BMP085_ULTRAHIGHRES)
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# Please set your locale altitude
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# http://www.latlong.net/ Helps to find your Langitude and Latitude
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# http://www.mapcoordinates.net/ Helps to Find the Data in Meter
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locale_altitude = 570
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seapFloat = sensor.read_sealevel_pressure(locale_altitude)
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pressure = sensor.read_pressure()
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psea = pressure / pow(1.0 - locale_altitude/44330.0, 5.255)
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print 'Temp = {0:0.2f} *C'.format(sensor.read_temperature())
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print 'Altitude = {0:0.2f} m'.format(sensor.read_altitude(seapFloat))
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print 'Pressure = {0:0.2f} hPa'.format(sensor.read_pressure()/100)
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print "Pressure NN =%8.2f hPa" % (psea / 100.0)
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