58 lines
2.2 KiB
Python
58 lines
2.2 KiB
Python
#!/usr/bin/python
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# Copyright (c) 2014 Adafruit Industries
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# Author: Tony DiCola
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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# Can enable debug output by uncommenting:
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#import logging
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#logging.basicConfig(level=logging.DEBUG)
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import time
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import Adafruit_MCP9808.MCP9808 as MCP9808
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# Define a function to convert celsius to fahrenheit.
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def c_to_f(c):
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return c * 9.0 / 5.0 + 32.0
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# Default constructor will use the default I2C address (0x18) and 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 = MCP9808.MCP9808()
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# Optionally you can override the address and/or bus number:
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#sensor = MCP9808.MCP9808(address=0x20, busnum=2)
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# Initialize communication with the sensor.
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sensor.begin()
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# Loop printing measurements every second.
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print('Press Ctrl-C to quit.')
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while True:
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temp = sensor.readTempC()
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print('Temperature: {0:0.3F}*C / {1:0.3F}*F'.format(temp, c_to_f(temp)))
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time.sleep(1.0)
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