3.5inch RPi LCD 能在raspberry Pi3上正常使用吗

注意事项电源VDD最后接上
排针焊接在液晶屏时注意不要虚焊，也可以用万用表测量一下
RW脚注意一定要接地
调节电位器可以调节液晶对比度
#!/usr/bin/python

#

from time import sleep
from datetime import datetime
from time import sleep

class Adafruit_CharLCD:

# commands
LCD_CLEARDISPLAY = 0x01
LCD_RETURNHOME = 0x02
LCD_ENTRYMODESET = 0x04
LCD_DISPLAYCONTROL = 0x08
LCD_CURSORSHIFT = 0x10
LCD_FUNCTIONSET = 0x20
LCD_SETCGRAMADDR = 0x40
LCD_SETDDRAMADDR = 0x80

# flags for display entry mode
LCD_ENTRYRIGHT = 0x00
LCD_ENTRYLEFT = 0x02
LCD_ENTRYSHIFTINCREMENT = 0