我一直在尝试使用PyQt5连接到蓝牙设备(常规的,低能耗的HC-06),但没有成功。我可以使用标准python调用连接到同一设备。我在MacOS上运行Python 3.7。当我运行下面的代码时,出现错误:“未知错误”,我很高兴知道自己在做错什么。
import sys
import bluetooth
import os
from PyQt5.QtWidgets import QApplication, QWidget
from PyQt5.QtCore import Qt
from PyQt5 import QtBluetooth
class bluetoothTest(QWidget):
def __init__(self, parent = None):
super(bluetoothTest, self).__init__(parent)
self.connectToRobot()
self.app = QApplication(sys.argv)
self.win = QWidget()
self.win.show()
sys.exit(self.app.exec_())
def connectToRobot(self):
self.sock = QtBluetooth.QBluetoothSocket(bluetooth.RFCOMM)
self.sock.connected.connect(self.connectedToBluetooth)
self.sock.readyRead.connect(self.receivedBluetoothMessage)
self.sock.disconnected.connect(self.disconnectedFromBluetooth)
self.sock.error.connect(self.socketError)
port = 1
self.sock.connectToService(QtBluetooth.QBluetoothAddress("98:D3:C1:FD:2C:46"),port)
def socketError(self,error):
print(self.sock.errorString())
def connectedToBluetooth(self):
self.sock.write('A'.encode())
def disconnectedFromBluetooth(self):
self.print('Disconnected from bluetooth')
def receivedBluetoothMessage(self):
while sock.canReadLine():
line = sock.readLine()
print(line)
def main():
# deal with a bluetooth bug on mac
if sys.platform == 'darwin':
os.environ['QT_EVENT_DISPATCHER_CORE_FOUNDATION'] = '1'
app = QApplication(sys.argv)
ex = bluetoothTest()
ex.show()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
我的代码的问题是“常规”蓝牙和Qt蓝牙功能的混合,特别是以下代码:
self.sock = QtBluetooth.QBluetoothSocket(bluetooth.RFCOMM)
应该是
self.sock = QtBluetooth.QBluetoothSocket(QtBluetooth.QBluetoothServiceInfo.RfcommProtocol)