esp32驱动SSD1306的oled显示汉字(micropython)

时间：2024-11-11 10:04:26

1.完整源码：

主函数oled.py

from ssd1306 import SSD1306_SPI

from ssd1306 import SSD1306

import font

import machine

def draw_chinese(lcd,ch_str,x_axis,y_axis):

  offset_=0

  y_axis=y_axis*16#中文高度一行占8个

  x_axis=(x_axis*16)#中文宽度占16个

  for k in ch_str:

      code = 0x00#将中文转成16进制编码

      data_code = k.encode("utf-8")

      code |= data_code[0]<<16

      code |= data_code[1]<<8

      code |= data_code[2]

      byte_data=font.byte2[code]

      for y in range(0,16):

          a_=bin(byte_data[y]).replace('0b','')

          while len(a_)<8:

              a_='0'+a_

          b_=bin(byte_data[y+16]).replace('0b','')

          while len(b_)<8:

              b_='0'+b_

          for x in range(0,8):

              lcd.pixel(x_axis+x-offset_,y+y_axis,int(a_[x]))#文字的上半部分

              lcd.pixel(x_axis+x+8-offset_,y+y_axis,int(b_[x]))#文字的下半部分

      offset_+=16

WIDTH = const(128)

HEIGHT = const (64)

pdc = machine.Pin(27, machine.Pin.OUT)

pcs = machine.Pin(26, machine.Pin.OUT)

prst = machine.Pin(18, machine.Pin.OUT)

spi = machine.SPI(baudrate=100000, polarity=1, phase=0, sck=machine.Pin(0), mosi=machine.Pin(2), miso=machine.Pin(4))

spi.init(baudrate=200000) # set the baudrate

ssd = SSD1306_SPI(WIDTH, HEIGHT, spi, pdc, prst, pcs)

draw_chinese(ssd,'我',0,0)

draw_chinese(ssd,'我',1,1)

draw_chinese(ssd,'我',2,2)

draw_chinese(ssd,'我',3,3)

ssd.show()

　　字体包font.py

byte2={

  0xE997B9:

    [0x20,0x17,0x00,0x42,0x41,0x5F,0x41,0x41,0x4F,0x49,0x49,0x49,0x49,0x41,0x41,0x40,

    0x00,0xFC,0x04,0x04,0x04,0xF4,0x04,0x04,0xE4,0x24,0x24,0xA4,0x44,0x04,0x14,0x08],#闹

  0xe68891:

    [0x04,0x0E,0x78,0x08,0x08,0xFF,0x08,0x08,0x0A,0x0C,0x18,0x68,0x08,0x08,0x2B,0x10,

    0x40,0x50,0x48,0x48,0x40,0xFE,0x40,0x44,0x44,0x48,0x30,0x22,0x52,0x8A,0x06,0x02],#我

  0xE9929F:

    [0x10,0x10,0x3C,0x20,0x41,0xBD,0x11,0x11,0xFD,0x11,0x11,0x10,0x14,0x18,0x10,0x00,

    0x20,0x20,0x20,0x20,0xFC,0x24,0x24,0x24,0x24,0xFC,0x24,0x20,0x20,0x20,0x20,0x20],#钟

  0xE697B6:

    [0x00,0x00,0x7C,0x44,0x45,0x44,0x44,0x7C,0x44,0x44,0x44,0x44,0x7C,0x44,0x00,0x00,

    0x08,0x08,0x08,0x08,0xFE,0x08,0x08,0x08,0x88,0x48,0x48,0x08,0x08,0x08,0x28,0x10]

}

　2.　esp硬件spi接线

oled                                  esp32   

GND                                 GND

VCC                                 VCC

D0                                    P0(SCK)

D1                                    P2(MOSI)

RES                                 P18(RST)

DC                                   P27(DC)

CS                                   P26(CS)

3. 汉字取模

使用工具PCtoLCD2002完美版，参数设置如下图：

esp32驱动SSD1306的oled显示汉字(micropython)

生成字节数组：

0x04,0x0E,0x78,0x08,0x08,0xFF,0x08,0x08,0x0A,0x0C,0x18,0x68,0x08,0x08,0x2B,0x10,

0x40,0x50,0x48,0x48,0x40,0xFE,0x40,0x44,0x44,0x48,0x30,0x22,0x52,0x8A,0x06,0x02

4.显示效果

esp32驱动SSD1306的oled显示汉字(micropython)

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