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_grovegprs as sensorObj 26 27# Instantiate a GroveGPRS Module on UART 0 28sensor = sensorObj.GroveGPRS(0) 29 30## Exit handlers ## 31# This stops python from printing a stacktrace when you hit control-C 32def SIGINTHandler(signum, frame): 33 raise SystemExit 34 35# This function lets you run code on exit 36def exitHandler(): 37 print "Exiting" 38 sys.exit(0) 39 40# Register exit handlers 41atexit.register(exitHandler) 42signal.signal(signal.SIGINT, SIGINTHandler) 43 44# Set the baud rate, 19200 baud is the default. 45if (sensor.setBaudRate(19200)): 46 print "Failed to set baud rate" 47 sys.exit(0) 48 49 50usageStr = ("Usage:\n" 51"If an argument is supplied on the command line, that argument is\n" 52"sent to the module and the response is printed out.\n\n" 53"If no argument is used, then the manufacturer and the current\n" 54"saved profiles are queried and the results printed out.\n\n") 55print usageStr 56 57# simple helper function to send a command and wait for a response 58def sendCommand(sensor, cmd): 59 # commands need to be terminated with a carriage return 60 cmd += "\r"; 61 sensor.writeDataStr(cmd) 62 63 # wait up to 1 second 64 if (sensor.dataAvailable(1000)): 65 print "Returned: ", 66 print sensor.readDataStr(1024) 67 else: 68 print "Timed out waiting for response" 69 70 71if (len(sys.argv) > 1): 72 print "Sending command line argument (" + sys.argv[1] + ")..." 73 sendCommand(sensor, sys.argv[1]) 74else: 75 # query the module manufacturer 76 print "Querying module manufacturer (AT+CGMI)..." 77 sendCommand(sensor, "AT+CGMI"); 78 79 time.sleep(1); 80 81 # query the saved profiles 82 print "Querying the saved profiles (AT&V)..." 83 sendCommand(sensor, "AT&V"); 84 85 # A comprehensive list is available from the datasheet at: 86 # http://www.seeedstudio.com/wiki/images/7/72/AT_Commands_v1.11.pdf 87