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USRPB20xmini_LoRa_receive_UDP.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# SPDX-License-Identifier: GPL-3.0
#
# GNU Radio Python Flow Graph
# Title: LoRa Receiver to UDP socket with USRP
# Author: FlUxIuS
# Copyright: PentHertz
# Description: Example of a schema that receive LoRa frames and write to an UDP socket to be decoded with the Scapy Layer
# GNU Radio version: 3.8.0.0
from distutils.version import StrictVersion
if __name__ == '__main__':
import ctypes
import sys
if sys.platform.startswith('linux'):
try:
x11 = ctypes.cdll.LoadLibrary('libX11.so')
x11.XInitThreads()
except:
print("Warning: failed to XInitThreads()")
from PyQt5 import Qt
from gnuradio import eng_notation
from gnuradio import qtgui
from gnuradio.filter import firdes
import sip
from gnuradio import gr
import sys
import signal
from argparse import ArgumentParser
from gnuradio.eng_arg import eng_float, intx
from gnuradio import uhd
import time
from gnuradio.qtgui import Range, RangeWidget
import lora
from gnuradio import qtgui
class LoRa_usrp_receive_to_UDP(gr.top_block, Qt.QWidget):
def __init__(self):
gr.top_block.__init__(self, "LoRa Receiver to UDP socket with USRP")
Qt.QWidget.__init__(self)
self.setWindowTitle("LoRa Receiver to UDP socket with USRP")
qtgui.util.check_set_qss()
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "LoRa_usrp_receive_to_UDP")
try:
if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
self.restoreGeometry(self.settings.value("geometry").toByteArray())
else:
self.restoreGeometry(self.settings.value("geometry"))
except:
pass
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 1e6
self.freq_slider = freq_slider = 868e6
self.channel_freq = channel_freq = 868.2e6
##################################################
# Blocks
##################################################
self._freq_slider_range = Range(867e6, 869e6, 1, 868e6, 200)
self._freq_slider_win = RangeWidget(self._freq_slider_range, self.set_freq_slider, 'Frequency', "counter_slider", float)
self.top_grid_layout.addWidget(self._freq_slider_win)
self._channel_freq_tool_bar = Qt.QToolBar(self)
self._channel_freq_tool_bar.addWidget(Qt.QLabel('Channel frequency' + ": "))
self._channel_freq_line_edit = Qt.QLineEdit(str(self.channel_freq))
self._channel_freq_tool_bar.addWidget(self._channel_freq_line_edit)
self._channel_freq_line_edit.returnPressed.connect(
lambda: self.set_channel_freq(eng_notation.str_to_num(str(self._channel_freq_line_edit.text()))))
self.top_grid_layout.addWidget(self._channel_freq_tool_bar)
self.uhd_usrp_source_0 = uhd.usrp_source(
",".join(("", "")),
uhd.stream_args(
cpu_format="fc32",
args='',
channels=[],
),
)
self.uhd_usrp_source_0.set_center_freq(freq_slider, 0)
self.uhd_usrp_source_0.set_gain(0, 0)
self.uhd_usrp_source_0.set_antenna('RX2', 0)
self.uhd_usrp_source_0.set_bandwidth(samp_rate, 0)
self.uhd_usrp_source_0.set_samp_rate(samp_rate)
self.uhd_usrp_source_0.set_time_unknown_pps(uhd.time_spec())
self.qtgui_waterfall_sink_x_0 = qtgui.waterfall_sink_c(
1024, #size
firdes.WIN_HAMMING, #wintype
channel_freq, #fc
samp_rate, #bw
"", #name
1 #number of inputs
)
self.qtgui_waterfall_sink_x_0.set_update_time(0.10)
self.qtgui_waterfall_sink_x_0.enable_grid(True)
self.qtgui_waterfall_sink_x_0.enable_axis_labels(True)
labels = ['', '', '', '', '',
'', '', '', '', '']
colors = [0, 0, 0, 0, 0,
0, 0, 0, 0, 0]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in range(1):
if len(labels[i]) == 0:
self.qtgui_waterfall_sink_x_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_waterfall_sink_x_0.set_line_label(i, labels[i])
self.qtgui_waterfall_sink_x_0.set_color_map(i, colors[i])
self.qtgui_waterfall_sink_x_0.set_line_alpha(i, alphas[i])
self.qtgui_waterfall_sink_x_0.set_intensity_range(-140, 10)
self._qtgui_waterfall_sink_x_0_win = sip.wrapinstance(self.qtgui_waterfall_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_grid_layout.addWidget(self._qtgui_waterfall_sink_x_0_win)
self.qtgui_freq_sink_x_0 = qtgui.freq_sink_c(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
freq_slider, #fc
samp_rate, #bw
"", #name
1
)
self.qtgui_freq_sink_x_0.set_update_time(0.10)
self.qtgui_freq_sink_x_0.set_y_axis(-140, 10)
self.qtgui_freq_sink_x_0.set_y_label('Relative Gain', 'dB')
self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
self.qtgui_freq_sink_x_0.enable_autoscale(False)
self.qtgui_freq_sink_x_0.enable_grid(False)
self.qtgui_freq_sink_x_0.set_fft_average(1.0)
self.qtgui_freq_sink_x_0.enable_axis_labels(True)
self.qtgui_freq_sink_x_0.enable_control_panel(True)
labels = ['', '', '', '', '',
'', '', '', '', '']
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "dark blue"]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in range(1):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_grid_layout.addWidget(self._qtgui_freq_sink_x_0_win)
self.lora_message_socket_sink_0 = lora.message_socket_sink('127.0.0.1', 40868, 0)
self.lora_lora_receiver_0 = lora.lora_receiver(samp_rate, 868e6, [channel_freq], 125000, 7, False, 4, True, False, False, 1, False, False)
##################################################
# Connections
##################################################
self.msg_connect((self.lora_lora_receiver_0, 'frames'), (self.lora_message_socket_sink_0, 'in'))
self.connect((self.uhd_usrp_source_0, 0), (self.lora_lora_receiver_0, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.qtgui_freq_sink_x_0, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.qtgui_waterfall_sink_x_0, 0))
def closeEvent(self, event):
self.settings = Qt.QSettings("GNU Radio", "LoRa_usrp_receive_to_UDP")
self.settings.setValue("geometry", self.saveGeometry())
event.accept()
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.qtgui_freq_sink_x_0.set_frequency_range(self.freq_slider, self.samp_rate)
self.qtgui_waterfall_sink_x_0.set_frequency_range(self.channel_freq, self.samp_rate)
self.uhd_usrp_source_0.set_samp_rate(self.samp_rate)
self.uhd_usrp_source_0.set_bandwidth(self.samp_rate, 0)
def get_freq_slider(self):
return self.freq_slider
def set_freq_slider(self, freq_slider):
self.freq_slider = freq_slider
self.qtgui_freq_sink_x_0.set_frequency_range(self.freq_slider, self.samp_rate)
self.uhd_usrp_source_0.set_center_freq(self.freq_slider, 0)
def get_channel_freq(self):
return self.channel_freq
def set_channel_freq(self, channel_freq):
self.channel_freq = channel_freq
Qt.QMetaObject.invokeMethod(self._channel_freq_line_edit, "setText", Qt.Q_ARG("QString", eng_notation.num_to_str(self.channel_freq)))
self.qtgui_waterfall_sink_x_0.set_frequency_range(self.channel_freq, self.samp_rate)
def main(top_block_cls=LoRa_usrp_receive_to_UDP, options=None):
if StrictVersion("4.5.0") <= StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
style = gr.prefs().get_string('qtgui', 'style', 'raster')
Qt.QApplication.setGraphicsSystem(style)
qapp = Qt.QApplication(sys.argv)
tb = top_block_cls()
tb.start()
tb.show()
def sig_handler(sig=None, frame=None):
Qt.QApplication.quit()
signal.signal(signal.SIGINT, sig_handler)
signal.signal(signal.SIGTERM, sig_handler)
timer = Qt.QTimer()
timer.start(500)
timer.timeout.connect(lambda: None)
def quitting():
tb.stop()
tb.wait()
qapp.aboutToQuit.connect(quitting)
qapp.exec_()
if __name__ == '__main__':
main()