1 #!/usr/bin/python 2 # Author: Zion Orent <zorent (at] 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 24 import time, sys, signal, atexit 25 import pyupm_hm11 as upmHm11 26 27 # Instantiate a HM11 BLE Module on UART 0 28 my_ble_obj = upmHm11.HM11(0) 29 30 31 ## Exit handlers ## 32 # This stops python from printing a stacktrace when you hit control-C 33 def SIGINTHandler(signum, frame): 34 raise SystemExit 35 36 # This function lets you run code on exit, 37 # including functions from my_ble_obj 38 def exitHandler(): 39 print "Exiting" 40 sys.exit(0) 41 42 # Register exit handlers 43 atexit.register(exitHandler) 44 signal.signal(signal.SIGINT, SIGINTHandler) 45 46 47 bufferLength = 256 48 49 # make sure port is initialized properly. 9600 baud is the default. 50 if (not my_ble_obj.setupTty(upmHm11.cvar.int_B9600)): 51 print "Failed to setup tty port parameters" 52 sys.exit(0) 53 54 55 usageStr = ("Usage:\n" 56 "Pass a commandline argument (any argument) to this program\n" 57 "to query the radio configuration and output it. NOTE: the\n" 58 "radio must be in CONFIG mode for this to work.\n\n" 59 "Running this program without arguments will simply transmit\n" 60 "'Hello World!' every second, and output any data received from\n" 61 "another radio.\n\n") 62 print usageStr 63 64 # simple helper function to send a command and wait for a response 65 def sendCommand(bleObj, cmd): 66 bleBuffer = upmHm11.charArray(bufferLength) 67 bleObj.writeData(cmd, len(cmd)) 68 69 # wait up to 1 second 70 if (bleObj.dataAvailable(1000)): 71 bleObj.readData(bleBuffer, bufferLength) 72 bleData = "" 73 # read only the number of characters 74 # specified by myGPSSensor.readData 75 for x in range(0, bufferLength): 76 if (bleBuffer.__getitem__(x) == '\0'): 77 break 78 else: 79 bleData += bleBuffer.__getitem__(x) 80 print bleData 81 else: 82 print "Timed out waiting for response" 83 84 85 if (len(sys.argv) > 1): 86 print "Sending command line argument (" + sys.argv[1] + ")..." 87 sendCommand(my_ble_obj, sys.argv[1]) 88 else: 89 # query the module address 90 addr = "AT+ADDR?"; 91 print "Querying module address (" + addr + ")..." 92 93 sendCommand(my_ble_obj, addr) 94 time.sleep(1) 95 # query the module address 96 pin = "AT+PASS?"; 97 print "Querying module PIN (" + pin + ")..." 98 sendCommand(my_ble_obj, pin) 99 100 # Other potentially useful commands are: 101 # 102 # AT+VERS? - query module version 103 # AT+ROLE0 - set as slave 104 # AT+ROLE1 - set as master 105 # AT+CLEAR - clear all previous settings 106 # AT+RESET - restart the device 107 # 108 # A comprehensive list is available from the datasheet at: 109 # http://www.seeedstudio.com/wiki/images/c/cd/Bluetooth4_en.pdf 110 111
