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import numpy as np
import pyaudio
import threading
from utils import *
class Sender:
def __init__(self, start_freq=18500):
# initialize frequency related variables with default values
self.start_freq = start_freq
self.freq_range = 500
self.sampling_rate = 44100
self.bytes_per_transmit = 1
# initialize stream variables
self.p = pyaudio.PyAudio()
self.stream = self.p.open(format=pyaudio.paFloat32, channels=1, rate=44100, output=True)
def transmit_string(self, data):
data_list = string_to_binary(data)
play_data(data_list, self.start_freq, self.freq_range, self.bytes_per_transmit, self.stream)
def send_data(self):
while True:
user_input = input("Enter data to send: ")
if user_input == "exit" or user_input == "q":
self.stream.stop_stream()
self.stream.close()
break
self.transmit_string(user_input)
def main():
sender = Sender()
# Create a thread for sending data
send_thread = threading.Thread(target=sender.send_data)
# Start the threads
send_thread.start()
if __name__ == "__main__":
main()
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