70 lines
2.4 KiB
Python
70 lines
2.4 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_GPIO.SPI as SPI
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import Adafruit_MAX31855.MAX31855 as MAX31855
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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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# Uncomment one of the blocks of code below to configure your Pi or BBB to use
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# software or hardware SPI.
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# Raspberry Pi software SPI configuration.
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CLK = 25
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CS = 24
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DO = 18
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sensor = MAX31855.MAX31855(CLK, CS, DO)
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# Raspberry Pi hardware SPI configuration.
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#SPI_PORT = 0
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#SPI_DEVICE = 0
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#sensor = MAX31855.MAX31855(spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE))
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# BeagleBone Black software SPI configuration.
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#CLK = 'P9_12'
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#CS = 'P9_15'
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#DO = 'P9_23'
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#sensor = MAX31855.MAX31855(CLK, CS, DO)
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# BeagleBone Black hardware SPI configuration.
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#SPI_PORT = 1
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#SPI_DEVICE = 0
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#sensor = MAX31855.MAX31855(spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE))
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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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internal = sensor.readInternalC()
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print('Thermocouple Temperature: {0:0.3F}*C / {1:0.3F}*F'.format(temp, c_to_f(temp)))
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print(' Internal Temperature: {0:0.3F}*C / {1:0.3F}*F'.format(internal, c_to_f(internal)))
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time.sleep(1.0)
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