2.4inch_LCD_demo Source Code

The Python source code of 2.4inch_LCD_demo is provided for your reference.

#!/usr/bin/python
"""
Please make sure the 2.4inch LCD Moudle is connected to the correct pins.
The following table describes how to connect the 2.4inch LCD Module to the 40-pin header.
-------------------------------------------------
__2.4inch LCD Module___Pin Number_____Pin Name
    VCC                  17           3.3 V Power
    GND                  39             GND
    DIN                  19           SPI MOSI
    CLK                  23           SPI SCLK
    CS                   24           SPI CE0
    DC                   40            GPIO44
    RST                  11            GPIO42
    BL                   18            GPIO51
-------------------------------------------------
"""

import os
import sys
import time
import logging
from PIL import Image

sys.path.append("..")

import VisionFive.boardtype as board_t
from lib import LCD2inch4_lib

"""
Demo modification ans new function description
------------------------------------------------------------
  I.   add the clear() function to fill LCD screen with white
  II.  give a hexadecimal value of white
  III. cycle through multiple pictures
---------------------------------------------------------------
"""

WHITE = 0xFF


def main():
    print("-----------lcd demo-------------")

    # Determining cpu Type: 1 means visionfive1; 2 means visionfive 2
    vf_t = board_t.boardtype()
    if vf_t == 1:
        SPI_DEVICE = "/dev/spidev0.0"
    elif vf_t == 2:
        SPI_DEVICE = "/dev/spidev1.0"
    else:
        print("This module can only be run on a VisionFive board!")
        return 0

    """The initialization settings of 2inch and 2.4inch are distinguished"""
    disp = LCD2inch4_lib.LCD_2inch4(11, 40, SPI_DEVICE)
    # disp.lcd_init()
    disp.lcd_init_2inch4()

    disp.lcd_clear(WHITE)

    if vf_t == 1:
        image = Image.open("./visionfive.bmp")
    elif vf_t == 2:
        image = Image.open("./visionfive2.png")
    else:
        return

    disp.lcd_ShowImage(image, 0, 0)
    time.sleep(2)

    """add the part of displaying pictures circularly"""
    while True:
        try:
            print(time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(time.time())))

            """rotate the picture 90 degrees anticlockwise"""
            """to keep consistent with the display direction of other pictures"""
            image = Image.open("./LCD_2inch4_parrot.bmp")
            image = image.transpose(Image.Transpose.ROTATE_90)
            disp.lcd_ShowImage(image, 0, 0)
            time.sleep(0.5)

            image = Image.open("./LCD_2inch.jpg")
            disp.lcd_ShowImage(image, 0, 0)
            time.sleep(0.5)

            if vf_t == 1:
                image = Image.open("./visionfive.bmp")
            elif vf_t == 2:
                image = Image.open("./visionfive2.png")
            else:
                return
            disp.lcd_ShowImage(image, 0, 0)
            time.sleep(0.5)

        except KeyboardInterrupt:
            break

    print("Exit demo!")


if __name__ ==