android-使用Python通过蓝牙串行进行通信

概述您如何通过蓝牙和Python处理和接收串行数据？我正在尝试制作一个简单的Python服务器,该服务器通过蓝牙将数据访问为explainedhere.我的server.py文件在发送文本“temp”时发送一个随机数,它是：#!/usr/bin/envpythonimportosimportglobimporttimeimportrandomfrombl

您如何通过蓝牙和Python处理和接收串行数据？

我正在尝试制作一个简单的Python服务器,该服务器通过蓝牙将数据访问为explained here.

我的server.py文件在发送文本“ temp”时发送一个随机数,它是：

#!/usr/bin/env pythonimport osimport globimport timeimport randomfrom bluetooth import *def read_temp():    return random.random()server_sock=BluetoothSocket( RFCOMM )server_sock.bind(("",PORT_ANY))server_sock.Listen(1)port = server_sock.getsockname()[1]uuID = "94f39d29-7d6d-437d-973b-fba39e49d4ee"advertise_service( server_sock, "TestServer",                   service_ID = uuID,                   service_classes = [ uuID, SERIAL_PORT_CLASS ],                   profiles = [ SERIAL_PORT_PROfile ], #                   protocols = [ OBEX_UUID ]                     )while True:              print "Waiting for connection on RFCOMM channel %d" % port    clIEnt_sock, clIEnt_info = server_sock.accept()    print "Accepted connection from ", clIEnt_info    try:        data = clIEnt_sock.recv(1024)        if len(data) == 0: break        print "received [%s]" % data        if data == 'temp':            data = str(read_temp())+'!'            clIEnt_sock.send(data)        else:            data = 'WTF!'             clIEnt_sock.send(data)        print "sending [%s]" % data    except IOError:        pass    except KeyboardInterrupt:        print "disconnected"        clIEnt_sock.close()        server_sock.close()        print "all done"        break

当我第一次运行它时,我得到了错误：

bluetooth.btcommon.BluetoothError: (2, 'No such file or directory')

可以通过启用兼容模式并通过编辑文件/lib/systemd/system/bluetooth.service并更改行来加载串行配置文件来修复Googled showed

ExecStart=/usr/lib/bluetooth/bluetoothd

至：

ExecStart=/usr/lib/bluetooth/bluetoothd -C

然后运行sudo sdptool add SP.

现在python server.py似乎可以正常运行,并且我可以将运行它的机器与我的AndroID手机配对.但是,似乎无法接收任何数据.

我曾经尝试使用蓝牙终端仿真应用程序,例如BlueTerm,BT Simple Terminal和Arduino BT,但是当我连接到服务器时,输入文本并按Enter,则server.py没有响应.它最初将报告“ Accepted connection …”并且已接收到空字符串,但此后将什么也没有接收到.

由于没有报告任何明显的错误,所以我不确定如何诊断问题.如何确定问题是否出在我的Python代码中？还是服务器上的蓝牙配置？还是我的AndroID手机？

解决方法:

正确的代码是：

#!/usr/bin/env python"""A simple test server that returns a random number when sent the text "temp" via Bluetooth serial."""import osimport globimport timeimport randomfrom bluetooth import *server_sock = BluetoothSocket( RFCOMM )server_sock.bind(("",PORT_ANY))server_sock.Listen(1)port = server_sock.getsockname()[1]uuID = "94f39d29-7d6d-437d-973b-fba39e49d4ee"advertise_service( server_sock, "TestServer",                   service_ID = uuID,                   service_classes = [ uuID, SERIAL_PORT_CLASS ],                   profiles = [ SERIAL_PORT_PROfile ], #                   protocols = [ OBEX_UUID ]                     )print "Waiting for connection on RFCOMM channel %d" % portclIEnt_sock, clIEnt_info = server_sock.accept()print "Accepted connection from ", clIEnt_infowhile True:              try:        req = clIEnt_sock.recv(1024)        if len(req) == 0:            break        print "received [%s]" % req        data = None        if req in ('temp', '*temp'):            data = str(random.random())+'!'        else:            pass        if data:            print "sending [%s]" % data            clIEnt_sock.send(data)    except IOError:        pass    except KeyboardInterrupt:        print "disconnected"        clIEnt_sock.close()        server_sock.close()        print "all done"        break

总结

以上是内存溢出为你收集整理的android-使用Python通过蓝牙串行进行通信全部内容，希望文章能够帮你解决android-使用Python通过蓝牙串行进行通信所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。