物联网开发笔记（90）- 使用Micropython开发ESP32开发板之合宙ESP32 C3开发板通过串口SPI控制st7789v TFT液晶屏2寸

一、目的

        这一节我们学习如何使用合宙的ESP32 C3开发板控制2寸彩色TFT显示屏模块，分辨率240*320，SPI接口，ST7789v驱动芯片。

二、环境

        ESP32 C3 + Thonny + 2寸 ST7789v 显示屏模块 + 几根杜邦线 + Win10

接线方法：

三、st7789驱动、字库、字模制作
        st7789py.py，font.py，vga2_bold_16x32.py和字模制作方法请从下文获取，谢谢！

物联网开发笔记（89）- 使用Micropython开发ESP32开发板之合宙ESP32 C3开发板通过串口SPI控制st7789 TFT液晶屏1.3寸_魔都飘雪的博客-CSDN博客使用Micropython开发ESP32开发板之合宙ESP32 C3开发板通过串口SPI控制st7789 TFT 1.3寸液晶屏https://blog.csdn.net/zhusongziye/article/details/129347036?spm=1001.2014.3001.5501四、演示代码

from machine import Pin,SPI,PWM
import vga2_bold_16x32 as font
from font import Chine
import st7789py

blk = PWM(Pin(8),duty = (600),freq = 1000)

cs = Pin(7,Pin.OUT) # CS片选信号单独列出来，点亮屏幕前需要先拉低

spi = SPI(1,baudrate = 60_000_000,polarity = 1,sck = Pin(2),mosi = Pin(3),miso = None)
tft = st7789py.ST7789(spi,320,240, reset=Pin(10,Pin.OUT), dc = Pin(6,Pin.OUT),cs = None,backlight=None, rotation=0) #0-3

#16*32字体函数
def ByteOpera16x32(num,dat):
  byte= [0x01,0x02,0x04,0x8,0x10,0x20,0x40,0x80]
  if dat&byte[num]:
    return 1
  else:
    return 0

def LcdShowCh_16x32(n, x_axis, y_axis):
  for i in range(4): 
    for a in range(16): 
      for b in range(8):
        if(ByteOpera16x32(b,Chine.chine[n*64+i*16+a])): 
          tft.pixel(x_axis+a,y_axis+i*8+b,st7789py.color565(1,255,1))
        else:
          tft.pixel(x_axis+a,y_axis+i*8+b,st7789py.color565(0,0,0))
          
def main():
    cs.off() # CS片选信号需要先拉低
    #tft.fill(0xfff0)
    tft.text(font,"Welcome China",0,10,st7789py.color565(0,0,255), st7789py.color565(255,0,0))
    
    for i in range(6):
        LcdShowCh_16x32(i,i*16,42)
    
    while True:
        pass

if __name__ == "__main__":
    main()
    

五、演示效果

六、屏幕购买

某宝链接：

https://item.taobao.com/item.htm?spm=a1z09.2.0.0.5b662e8dlsVUXt&id=656021718301&_u=5p01rch773dhttps://item.taobao.com/item.htm?spm=a1z09.2.0.0.5b662e8dlsVUXt&id=656021718301&_u=5p01rch773d