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