sudo su
rpi-rw
cd /tmp
git clone https://github.com/pyserial/pyserial.git
cd pyserial
python setup.py install
pistar-watchdog.service stop
systemctl stop mmdvmhost.timer
systemctl stop mmdvmhost.service
git clone https://github.com/VR2VYE/MHI-TJC.git
cd ~/MHI-TJC
python nextion.py TJC3224T024-.tft /dev/ttyUSB0 （ USB0就是你LCD所接的端口，如果不是USB就更改为你LCD所接的端口）