77 lines
2.3 KiB
Python
77 lines
2.3 KiB
Python
import bluetooth
|
|
import time
|
|
|
|
# 蓝牙服务器地址 (接收设备的 MAC 地址)
|
|
server_address = '0C:B7:89:58:8E:6E' # 替换为接收设备的蓝牙地址
|
|
|
|
# 文件路径 (需要从此文件中读取数据)
|
|
file_path = 'data.txt'
|
|
|
|
# 数据块大小 (1 KB)
|
|
chunk_size = 1024 # 每次发送 1 KB 数据块
|
|
|
|
def find_rfcomm_port(server_address):
|
|
"""查找蓝牙服务的RFCOMM端口"""
|
|
services = bluetooth.find_service(address=server_address)
|
|
|
|
for svc in services:
|
|
# 假设服务名称为 'Serial Port'，根据实际情况进行调整
|
|
if svc['name'] == 'Classic BlueTooth':
|
|
return svc['port']
|
|
|
|
return None
|
|
|
|
def send_file_contents(file_path, chunk_size, sock):
|
|
"""从文件中读取整个内容并分块发送"""
|
|
total_bytes_sent = 0
|
|
try:
|
|
with open(file_path, 'r') as file:
|
|
start_time = time.time() # 记录开始时间
|
|
|
|
while True:
|
|
# 读取数据块
|
|
data_chunk = file.read(chunk_size)
|
|
|
|
if not data_chunk:
|
|
# 文件读取完毕
|
|
break
|
|
|
|
# 发送数据块
|
|
sock.send(data_chunk.encode('utf-8'))
|
|
|
|
# 累计发送的字节数
|
|
total_bytes_sent += len(data_chunk)
|
|
|
|
end_time = time.time() # 记录结束时间
|
|
|
|
# 计算并打印累计发送速率
|
|
elapsed_time = end_time - start_time
|
|
if elapsed_time > 0:
|
|
total_send_rate = total_bytes_sent / elapsed_time
|
|
print(f"累计发送速率: {total_send_rate / 1024:.2f} KB/s")
|
|
|
|
except Exception as e:
|
|
print(f"读取文件时出错: {e}")
|
|
|
|
try:
|
|
# 查找RFCOMM端口
|
|
port = find_rfcomm_port(server_address)
|
|
if port is None:
|
|
print("无法找到蓝牙服务端口")
|
|
else:
|
|
# 创建蓝牙 socket
|
|
sock = bluetooth.BluetoothSocket(bluetooth.RFCOMM)
|
|
|
|
# 连接到蓝牙设备
|
|
sock.connect((server_address, port))
|
|
print(f"已连接到蓝牙设备，端口: {port}")
|
|
|
|
# 发送整个文件内容
|
|
send_file_contents(file_path, chunk_size, sock)
|
|
|
|
finally:
|
|
# 关闭 socket
|
|
if 'sock' in locals():
|
|
sock.close()
|
|
print("已断开蓝牙连接")
|