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-#!/usr/bin/python
-# Author: Zion Orent <zorent@ics.com>
-# Copyright (c) 2015 Intel Corporation.
-#
-# Permission is hereby granted, free of charge, to any person obtaining
-# a copy of this software and associated documentation files (the
-# "Software"), to deal in the Software without restriction, including
-# without limitation the rights to use, copy, modify, merge, publish,
-# distribute, sublicense, and/or sell copies of the Software, and to
-# permit persons to whom the Software is furnished to do so, subject to
-# the following conditions:
-#
-# The above copyright notice and this permission notice shall be
-# included in all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-import time, sys, signal, atexit
-import pyupm_mhz16 as upmMhz16
-
-# Instantiate a MHZ16 serial CO2 sensor on uart 0.
-# This example was tested on the Grove CO2 sensor module.
-myCO2 = upmMhz16.MHZ16(0)
-
-
-## Exit handlers ##
-# This stops python from printing a stacktrace when you hit control-C
-def SIGINTHandler(signum, frame):
- raise SystemExit
-
-# This function lets you run code on exit,
-# including functions from myCO2
-def exitHandler():
- print "Exiting"
- sys.exit(0)
-
-# Register exit handlers
-atexit.register(exitHandler)
-signal.signal(signal.SIGINT, SIGINTHandler)
-
-
-# make sure port is initialized properly. 9600 baud is the default.
-if (not myCO2.setupTty(upmMhz16.cvar.int_B9600)):
- print "Failed to setup tty port parameters"
- sys.exit(0)
-
-print ("Make sure that the sensor has had "
-"at least 3 minutes to warm up\n"
-"or you will not get valid results.\n"
-"The temperature reported is not the ambient temperature,\n"
-"but rather the temperature of the sensor elements.")
-
-time.sleep(1)
-
-while(1):
- if (not myCO2.getData()):
- print "Failed to retrieve data"
- else:
- outputStr = ("CO2 concentration: {0} PPM, "
- "Temperature (in C): {1}".format(
- myCO2.getGas(), myCO2.getTemperature()))
- print outputStr
-
- time.sleep(2)