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Diffstat (limited to 'examples/python/sx1276-lora.py')
-rw-r--r-- | examples/python/sx1276-lora.py | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/examples/python/sx1276-lora.py b/examples/python/sx1276-lora.py new file mode 100644 index 0000000..05d9700 --- /dev/null +++ b/examples/python/sx1276-lora.py @@ -0,0 +1,88 @@ +#!/usr/bin/python +# Author: Jon Trulson <jtrulson@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_sx1276 as sensorObj + +# Instantiate an SX1276 using default parameters +sensor = sensorObj.SX1276() + +## 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 +def exitHandler(): + print "Exiting" + sys.exit(0) + +# Register exit handlers +atexit.register(exitHandler) +signal.signal(signal.SIGINT, SIGINTHandler) + +print "Specify an argument to go into receive mode. Default is transmit" + +# 915Mhz +sensor.setChannel(915000000) + +# LORA configuration (rx and tx must be configured the same): +# Tx output power = 14 dBm +# LORA bandwidth = 125000 (can also be 250K and 500K) +# LORA spreading factor = 7 +# LORA coding rate = 1 (4/5) +# LORA preamble len = 8 +# LORA symbol timeout = 5 +# LORA fixed payload = false +# LORA IQ inversion = false +# LORA (rx) continuous Rx mode = true + +sensor.setTxConfig(sensor.MODEM_LORA, 14, 0, 125000, + 7, 1, 8, False, True, False, 0, False) + +sensor.setRxConfig(sensor.MODEM_LORA, 125000, 7, + 1, 0, 8, 5, False, 0, True, False, 0, False, True) + +count = 0 + +while True: + if (len(sys.argv) > 1): + # receive mode + print "Attempting to receive..." + rv = sensor.setRx(3000) + if (rv): + print "setRx returned ", rv + else: + print "Received Buffer: ", sensor.getRxBufferStr(); + # go back to sleep when done + + sensor.setSleep() + time.sleep(.25) + else: + # transmit mode + buffer = "Ping " + str(count) + count += 1 + print "Sending..." + buffer + sensor.sendStr(buffer, 3000) + sensor.setSleep(); + time.sleep(1); |