stm32f4_pythonGUI_realtime Youtube: https://www.youtube.com/watch?v=Ks8fWrLTWw8 download matplotlib： sudo apt-get install python-matplotlib http://matplotlib.org/1.3.1/users/installing.html Type: ~$ sudo chmod 777 /dev/ttyUSB0 ~$ python gui.py '/dev/ttyUSB0'