boardManager.py 文件源码

def search(self):
        #Return the 1st board founded with Exode installed
        logCore("Searching for a board...")
        boardList=[]

        #  Search a port
        if platform.system() == 'Windows':
            ports = windows_ports()
        elif platform.system() == 'Darwin':
            ports = [i[0] for i in list_ports.comports()]
        else:
            ports = glob.glob("/dev/ttyUSB*") + glob.glob("/dev/ttyACM*")

        for p in ports:
            try:
                logCore("Try to connect to :"+p)
                sr = serial.Serial(p, 9600)
            except (serial.serialutil.SerialException, OSError) as e:
                continue

            time.sleep(2)
            # This bit array execute the function checkExode()
            # on the board
            sr.write(bytearray([2, 0, ID('checkExode')]))
            sr.flush()
            time.sleep(0.25)

            # the board should answer 202,404
            ans= [0,0]
            if sr.inWaiting()>0:
                ans[0] = int.from_bytes(sr.read(), byteorder='little')
                ans[1] = int.from_bytes(sr.read(4), byteorder='little', signed=False)

            logCore(p+" answered "+str(ans))
            if ans != [202,404]:
                continue
            else:
                logCore("Arduino board detected with Exode at : "+p)
                boardList.append(p)

        return boardList