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Previously, the C++ and C versions of this driver were separate. Now the C++ implementation wraps the C implementation. In addition, the C++ init() function has been deprecated. It currently does nothing, and examples have been modified to remove it's calls. This function will be removed in a separate release. The examples have been further modified to update all detected devices and print their respective temperatures, instead of only reporting the on the first device detected. Signed-off-by: Jon Trulson <jtrulson@ics.com>
71 lines
2.4 KiB
Python
Executable File
71 lines
2.4 KiB
Python
Executable File
#!/usr/bin/python
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# Author: Jon Trulson <jtrulson@ics.com>
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# Copyright (c) 2016-2017 Intel Corporation.
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in 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,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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from __future__ import print_function
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import time, sys, signal, atexit
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from upm import pyupm_ds18b20 as sensorObj
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def main():
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## Exit handlers ##
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# This function stops python from printing a stacktrace when you hit control-C
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def SIGINTHandler(signum, frame):
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raise SystemExit
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# This function lets you run code on exit
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def exitHandler():
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print("Exiting...")
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sys.exit(0)
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# Register exit handlers
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atexit.register(exitHandler)
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signal.signal(signal.SIGINT, SIGINTHandler)
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print("Initializing...")
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# Instantiate an DS18B20 instance using the default values (uart 0)
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sensor = sensorObj.DS18B20(0)
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print("Found", sensor.devicesFound(), "device(s)")
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print()
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if (not sensor.devicesFound()):
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sys.exit(1);
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# update and print available values every 2 seconds
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while (1):
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# update our values for all of the detected sensors
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sensor.update(-1)
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# we show both C and F for temperature for the sensors
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for i in range(sensor.devicesFound()):
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print("Device:", i, end=' ')
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print("Temperature:", sensor.getTemperature(i), "C /", end=' ')
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print(sensor.getTemperature(i, True), "F")
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print()
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time.sleep(2)
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if __name__ == '__main__':
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main()
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