plottipy.py 文件源码

def listen(self):
        eol = b'\n'
        eol_len = len(eol)
        line = bytearray()

        while True:
            try:
                c = self.serial.read(1)
                if c:
                    line += c
                    if line[-eol_len:] == eol:
                        print(line)
                        sample = struct.unpack('<' + 'h'*(len(line[:-eol_len])//2), line[:-eol_len])
                        print(sample)
                        self.emitter.emit(sample[-2:])
                        line = bytearray()
            except SerialException:
                return
            except AttributeError:
                return
            except struct.error:
                continue