2.4-2.8-3.2 inch screen resolution is too small. How to adjust it?
Solution to adjust the resolution to 480x360:
1. After installing the driver, open config.txt file:
sudo nano /boot/config.txt
2. Change '320 240 ' to '480 360' (take '2.4inch RPI display for RPI 3a+' as an example)
3. Press Ctrl+X, ready to exit; Press Y to confirm and save; Press Enter to exit.
4. Restart：
sudo reboot