如何设置处理程序以从Arduino UNO接收pyfirmata中的消息?
我有以下Python代码:
from logic.ModuleClass import Module
from events.EventDispatcherClass import Event
from pyfirmata import Arduino, util
import pyfirmata
class Comm(Module):
"""
Handles the communication between python and arduino
AttachTo: ""
"""
NAME = "Communicator"
def __init__(self, port):
super(Comm,self).__init__(Comm.NAME)
self.board = Arduino(port)
# start an iterator thread so that serial buffer doesn't overflow
it = util.Iterator(self.board)
it.start()
self.board.add_cmd_handler(pyfirmata.pyfirmata.STRING_DATA, self._messageHandler)
def _messageHandler(self, *args, **kwargs):
print args
def update(self):
super(Comm,self).update()
def writeData(self,data):
#print data
self.board.send_sysex(pyfirmata.pyfirmata.STRING_DATA,data)
def dispose(self):
super(Comm,self).dispose()
try:
self.board.exit()
except AttributeError:
print "exit() raised an AttributeError unexpectedly!"+self.toString()
在Arduino上,我发送了一个字符串:
Firmata.sendString("test");
我添加了_messageHandler(self,* args,** kwargs),我收回了我认为是字符代码的集合。我是python的新手,我不太确定如何获得从Arduino发送的原始字符串
答案 0 :(得分:0)
我找到了解决方案:
要将从arduino发送的字符串转换为pyfirmata,只需在python中使用以下代码:
def _messageHandler(self, *args, **kwargs):
print util.two_byte_iter_to_str(args)
那应该返回你期待的字符串。 FTW!