Raspberry Pi 3(服务器)上的 Python 蓝牙错误

Question

Listening for connections on port:  0  
Traceback (most recent call last):    
File "server.py", line 29, in <module>
runServer()       
File "server.py", line 19, in runServer
profiles = [ bluetooth.SERIAL_PORT_PROFILE ]      
File "/usr/lib/python2.7/dist-packages/bluetooth/bluez.py", line 176, in advertise_service
raise BluetoothError (str (e)) 
bluetooth.btcommon.BluetoothError: (2, 'No such file or directory')

这是我在树莓派 3 模型 B 上运行以下脚本时遇到的错误。

import bluetooth
name="bt_server"
target_name="siggen"
uuid="222705e1-e1e6-47f5-aa92-1c5ae849f3f1"
def runServer():
serverSocket=bluetooth.BluetoothSocket( bluetooth.RFCOMM )
port=bluetooth.PORT_ANY
serverSocket.bind(("",port))
print "Listening for connections on port: ", port   
serverSocket.listen(1)
port=serverSocket.getsockname()[1]
#the missing piece
bluetooth.advertise_service( serverSocket, "SampleServer",
service_id = uuid,
service_classes = [ uuid, bluetooth.SERIAL_PORT_CLASS ],
profiles = [ bluetooth.SERIAL_PORT_PROFILE ] 
)
inputSocket, address=serverSocket.accept()
print "Got connection with" , address
data=inputSocket.recv("1024")
print "received [%s] n " % data    
inputSocket.close()
serverSocket.close()  
runServer()

我有 bluez 版本 5.37。我点击了这些链接(链接1)和(链接2)。他们似乎没有解决问题。

我可以使用以下终端命令将我的安卓连接到树莓派

SDPtool Add SP

它没有给出任何回应。

sudo rfcomm listen hci0&

设备已连接(使用蓝色术语应用程序)

cat/dev/rfcomm0

此端口用于接收数据

此外，以下脚本有效

import bluetooth
server_sock=bluetooth.BluetoothSocket( bluetooth.RFCOMM )
port = 1
server_sock.bind(("",port))
server_sock.listen(1)
client_sock,address = server_sock.accept()
print("Accepted connection from ",address)
data = client_sock.recv(1024)
print("received [%s]" % data)
client_sock.close()
server_sock.close()

因此，蓝牙是完全正常工作的。我唯一的问题是个人资料。我无法弄清楚问题是什么。感谢任何形式的帮助。

提前感谢您的帮助！

Answer 1

你需要安装 libbluetooth-dev，就像下面这样：

sudo apt-get install libbluetooth-dev