如何通过串口（每约100-200毫秒）更新周期性信息图？我需要RTOS吗？

I'm sending positioning information (x,y,z coordinates in double data type) from a microcontroller via a Serial Communication Interface (SCI). I would like to use a program to receive this information and update this coordinate every time I receive a new coordinate, preferably in Python. I'm sending positioning information (x,y,z coor