求助，这是什么意思，行空板报错

|                           |
|      PinPong v0.5.2       |
|    Designed by DFRobot    |
|___________________________|

[01] Python3.7.3 Linux-4.4.143-67-rockchip-g01bbbc5d1312-aarch64-with-debian-10.11 Board: UNIHIKER
selected -> board: UNIHIKER serial: /dev/ttyS3
[10] Opening /dev/ttyS3
[32] Firmata ID: 3.8
[22] Arduino compatible device found and connected to /dev/ttyS3
[40] Retrieving analog map...
Traceback (most recent call last):
  File "/root/mindplus/cache/xkb.mp/.cache-file.py", line 28, in <module>
    Board().begin()
  File "/usr/local/lib/python3.7/dist-packages/pinpong/board.py", line 1369, in begin
    self.board = pymata4.Pymata4(com_port=self.serial, arduino_wait=2, baud_rate=115200, name = self.boardname)
  File "/usr/local/lib/python3.7/dist-packages/pinpong/base/pymata4.py", line 396, in __init__
    raise RuntimeError('*** Analog map retrieval timed out. ***'
RuntimeError: *** Analog map retrieval timed out. ***
Do you have Arduino connectivity and do you have the correct Firmata sketch uploaded to the board?
root@unihiker:~/mindplus/cache/xkb.mp#

看下这里https://mc.dfrobot.com.cn/thread-314045-1-1.html