【得捷电子Follow me第4期】入门任务：开发环境搭建，BLINK，驱动液晶显示器进行显示

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【得捷电子Follow me第4期】入门任务：开发环境搭建，BLINK，驱动液晶显示器进行显示 [复制链接]

 

本次是用的板子是WIZnet家的W5500-EVB-Pico，它是基树莓派pico和w5500与一身的板子，能够方便的连接上互联网，实物如下图所示

 

由于排针焊接错了方向，暂时通过杜邦线连接

开发环境是micropython ，micropython简单易上手，对新手友好教程也比较多

引脚图

 

 

参考了Pico LCD 1.14 - Waveshare Wiki的资料成功点亮了屏幕和blink

 

代码如下

 

from machine import Pin,SPI,PWM
import framebuf
import time,utime

BL = 13
DC = 8
RST = 12
MOSI = 11
SCK = 10
CS = 9

led = machine.Pin(25,machine.Pin.OUT)

class LCD_1inch14(framebuf.FrameBuffer):
    def __init__(self):
        self.width = 240
        self.height = 135
        
        self.cs = Pin(CS,Pin.OUT)
        self.rst = Pin(RST,Pin.OUT)
        
        self.cs(1)
        self.spi = SPI(1)
        self.spi = SPI(1,1000_000)
        self.spi = SPI(1,10000_000,polarity=0, phase=0,sck=Pin(SCK),mosi=Pin(MOSI),miso=None)
        self.dc = Pin(DC,Pin.OUT)
        self.dc(1)
        self.buffer = bytearray(self.height * self.width * 2)
        super().__init__(self.buffer, self.width, self.height, framebuf.RGB565)
        self.init_display()
        
        self.red   =   0x07E0
        self.green =   0x001f
        self.blue  =   0xf800
        self.white =   0xffff
        
    def write_cmd(self, cmd):
        self.cs(1)
        self.dc(0)
        self.cs(0)
        self.spi.write(bytearray([cmd]))
        self.cs(1)

    def write_data(self, buf):
        self.cs(1)
        self.dc(1)
        self.cs(0)
        self.spi.write(bytearray([buf]))
        self.cs(1)

    def init_display(self):
        """Initialize dispaly"""  
        self.rst(1)
        self.rst(0)
        self.rst(1)
        
        self.write_cmd(0x36)
        self.write_data(0x70)

        self.write_cmd(0x3A) 
        self.write_data(0x05)

        self.write_cmd(0xB2)
        self.write_data(0x0C)
        self.write_data(0x0C)
        self.write_data(0x00)
        self.write_data(0x33)
        self.write_data(0x33)

        self.write_cmd(0xB7)
        self.write_data(0x35) 

        self.write_cmd(0xBB)
        self.write_data(0x19)

        self.write_cmd(0xC0)
        self.write_data(0x2C)

        self.write_cmd(0xC2)
        self.write_data(0x01)

        self.write_cmd(0xC3)
        self.write_data(0x12)   

        self.write_cmd(0xC4)
        self.write_data(0x20)

        self.write_cmd(0xC6)
        self.write_data(0x0F) 

        self.write_cmd(0xD0)
        self.write_data(0xA4)
        self.write_data(0xA1)

        self.write_cmd(0xE0)
        self.write_data(0xD0)
        self.write_data(0x04)
        self.write_data(0x0D)
        self.write_data(0x11)
        self.write_data(0x13)
        self.write_data(0x2B)
        self.write_data(0x3F)
        self.write_data(0x54)
        self.write_data(0x4C)
        self.write_data(0x18)
        self.write_data(0x0D)
        self.write_data(0x0B)
        self.write_data(0x1F)
        self.write_data(0x23)

        self.write_cmd(0xE1)
        self.write_data(0xD0)
        self.write_data(0x04)
        self.write_data(0x0C)
        self.write_data(0x11)
        self.write_data(0x13)
        self.write_data(0x2C)
        self.write_data(0x3F)
        self.write_data(0x44)
        self.write_data(0x51)
        self.write_data(0x2F)
        self.write_data(0x1F)
        self.write_data(0x1F)
        self.write_data(0x20)
        self.write_data(0x23)
        
        self.write_cmd(0x21)

        self.write_cmd(0x11)

        self.write_cmd(0x29)

    def show(self):
        self.write_cmd(0x2A)
        self.write_data(0x00)
        self.write_data(0x28)
        self.write_data(0x01)
        self.write_data(0x17)
        
        self.write_cmd(0x2B)
        self.write_data(0x00)
        self.write_data(0x35)
        self.write_data(0x00)
        self.write_data(0xBB)
        
        self.write_cmd(0x2C)
        
        self.cs(1)
        self.dc(1)
        self.cs(0)
        self.spi.write(self.buffer)
        self.cs(1)
  
if __name__=='__main__':
    pwm = PWM(Pin(BL))
    pwm.freq(1000)
    pwm.duty_u16(32768)#max 65535

    LCD = LCD_1inch14()
    #color BRG
    LCD.fill(LCD.white)

 
    LCD.show()
    LCD.text("Hello Word !!",90,40,LCD.red)

    LCD.show()

    
    while(1):
        
        led.value(1)
        utime.sleep(2)
        led.value(0)
        utime.sleep(2)


            
    
    time.sleep(1)
    LCD.fill(0xFFFF)

点亮效果图