1#!/usr/bin/python
2# Author: Jon Trulson <jtrulson@ics.com>
3# Copyright (c) 2015 Intel Corporation.
4#
5# Permission is hereby granted, free of charge, to any person obtaining
6# a copy of this software and associated documentation files (the
7# "Software"), to deal in the Software without restriction, including
8# without limitation the rights to use, copy, modify, merge, publish,
9# distribute, sublicense, and/or sell copies of the Software, and to
10# permit persons to whom the Software is furnished to do so, subject to
11# the following conditions:
12#
13# The above copyright notice and this permission notice shall be
14# included in all copies or substantial portions of the Software.
15#
16# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23
24import time, sys, signal, atexit
25import pyupm_ad8232 as upmAD8232
26
27# Instantiate a AD8232 sensor on digital pins 10 (LO+), 11 (LO-)
28# and an analog pin, 0 (OUTPUT)
29myAD8232 = upmAD8232.AD8232(10, 11, 0)
30
31
32## Exit handlers ##
33# This function stops python from printing a stacktrace when you hit control-C
34def SIGINTHandler(signum, frame):
35	raise SystemExit
36
37# This function lets you run code on exit, including functions from myAD8232
38def exitHandler():
39	print "Exiting"
40	sys.exit(0)
41
42# Register exit handlers
43atexit.register(exitHandler)
44signal.signal(signal.SIGINT, SIGINTHandler)
45
46
47# Output the raw numbers from the ADC, for plotting elsewhere.
48# A return of 0 indicates a Lead Off (LO) condition.
49# In theory, this data could be fed to software like Processing
50# (https://www.processing.org/) to plot the data just like an
51# EKG you would see in a hospital.
52while(1):
53	print myAD8232.value()
54	time.sleep(.001)
55