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111 lines
3.5 KiB
Python
111 lines
3.5 KiB
Python
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#!/usr/bin/python
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# Author: Zion Orent <zorent@ics.com>
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# Copyright (c) 2015 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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import time, sys, signal, atexit
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import pyupm_hm11 as upmHm11
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# Instantiate a HM11 BLE Module on UART 0
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my_ble_obj = upmHm11.HM11(0)
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## Exit handlers ##
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# This 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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# including functions from my_ble_obj
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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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bufferLength = 256
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# make sure port is initialized properly. 9600 baud is the default.
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if (not my_ble_obj.setupTty(upmHm11.cvar.int_B9600)):
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print "Failed to setup tty port parameters"
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sys.exit(0)
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usageStr = ("Usage:\n"
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"Pass a commandline argument (any argument) to this program\n"
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"to query the radio configuration and output it. NOTE: the\n"
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"radio must be in CONFIG mode for this to work.\n\n"
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"Running this program without arguments will simply transmit\n"
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"'Hello World!' every second, and output any data received from\n"
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"another radio.\n\n")
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print usageStr
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# simple helper function to send a command and wait for a response
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def sendCommand(bleObj, cmd):
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bleBuffer = upmHm11.charArray(bufferLength)
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bleObj.writeData(cmd, len(cmd))
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# wait up to 1 second
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if (bleObj.dataAvailable(1000)):
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bleObj.readData(bleBuffer, bufferLength)
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bleData = ""
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# read only the number of characters
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# specified by myGPSSensor.readData
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for x in range(0, bufferLength):
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if (bleBuffer.__getitem__(x) == '\0'):
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break
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else:
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bleData += bleBuffer.__getitem__(x)
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print bleData
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else:
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print "Timed out waiting for response"
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if (len(sys.argv) > 1):
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print "Sending command line argument (" + sys.argv[1] + ")..."
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sendCommand(my_ble_obj, sys.argv[1])
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else:
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# query the module address
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addr = "AT+ADDR?";
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print "Querying module address (" + addr + ")..."
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sendCommand(my_ble_obj, addr)
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time.sleep(1)
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# query the module address
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pin = "AT+PASS?";
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print "Querying module PIN (" + pin + ")..."
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sendCommand(my_ble_obj, pin)
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# Other potentially useful commands are:
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#
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# AT+VERS? - query module version
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# AT+ROLE0 - set as slave
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# AT+ROLE1 - set as master
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# AT+CLEAR - clear all previous settings
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# AT+RESET - restart the device
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#
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# A comprehensive list is available from the datasheet at:
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# http://www.seeedstudio.com/wiki/images/c/cd/Bluetooth4_en.pdf
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