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#!/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)
# FSK configuration (rx and tx must be configured the same):
# Tx output power = 14 dBm
# FSK freq deviation = 25000 Hz
# FSK bandwidth = 50000 bps
# FSK AFC bandwidth = 83333 Hz
# FSK datarate = 50000 bps
# FSK preamble len = 5
# FSK fixed length payload = false
# FSK CRC check = true
# FSK (rx) continuous Rx mode = False
sensor.setTxConfig(sensor.MODEM_FSK, 14, 25000, 0,
50000, 0, 5, False, True, False, 0, False)
sensor.setRxConfig(sensor.MODEM_FSK, 50000, 50000,
0, 83333, 5, 0, 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);
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