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网站单页站群,贸易公司网站建,图片网站怎么做排名,株洲正规竞价优化推荐四针脚0.96英寸OLED显示屏模块的具体参数如下表所示。 参数名称 参数特性 分辨率 128x64像素 通信方式 IIC 驱动芯片 SSD1306 屏幕颜色 白色、蓝色或黄蓝双色
元件#xff1a; 四针脚0.96英寸OLED显示屏模块 ESP32 DEVKIT_C开发板 杜邦线USB Type-C 接线#xf…四针脚0.96英寸OLED显示屏模块的具体参数如下表所示。 参数名称 参数特性 分辨率 128x64像素 通信方式 IIC 驱动芯片 SSD1306 屏幕颜色 白色、蓝色或黄蓝双色
元件 四针脚0.96英寸OLED显示屏模块 ESP32 DEVKIT_C开发板 杜邦线USB Type-C 接线 ESP32 DEVKIT_C DHT11 VIN或3V3 VCC GND GND D25 SCL D26 SDA
注OLED中的SCL和SDA引脚也可以连接到ESP32中的其他硬/软件IIC引脚只需在代码中做出相应的配置。 制作任意字符点阵 取模软件 https://download.csdn.net/download/qq_^44955826⁄_90075081?spm1001.2014.3001.5501 取模方法可参考该博客 micropython oled中文_MicroPython实例之TPYBoard开发板控制OLED显示中文-CSDN博客 代码 OLED.py import time from machine import Pin from SSD1306 import SSD1306_I2Cfrom machine import I2C #i2c I2C(0) #初始化IIC0使用默认引脚“SCL18、SDA19”传输速度400 Kbps i2c I2C(1) #初始化IIC1使用默认引脚“SCL25、SDA26”传输速度400 Kbps#from machine import SoftI2C #i2c SoftI2C(sclPin(5), sdaPin(4), freq100000) #i2c SoftI2C(sclPin(33), sdaPin(32), freq400000)OLED SSD1306_I2C(128, 64, i2c) #屏幕长度128像素屏幕宽度64像素#用到的UTF-8编码字库 fonts {0xE6B8A9: #“温”的UTF-8编码[0x00,0x23,0x12,0x12,0x83,0x42,0x42,0x13,0x10,0x27,0xE4,0x24,0x24,0x24,0x2F,0x00,0x00,0xF8,0x08,0x08,0xF8,0x08,0x08,0xF8,0x00,0xFC,0xA4,0xA4,0xA4,0xA4,0xFE,0x00], #温0xE6B9BF:[0x00,0x27,0x14,0x14,0x87,0x44,0x44,0x17,0x11,0x21,0xE9,0x25,0x23,0x21,0x2F,0x00,0x00,0xF8,0x08,0x08,0xF8,0x08,0x08,0xF8,0x20,0x20,0x24,0x28,0x30,0x20,0xFE,0x00], #湿0xE5BAA6:[0x01,0x00,0x3F,0x22,0x22,0x3F,0x22,0x22,0x23,0x20,0x2F,0x24,0x42,0x41,0x86,0x38,0x00,0x80,0xFE,0x20,0x20,0xFC,0x20,0x20,0xE0,0x00,0xF0,0x10,0x20,0xC0,0x30,0x0E], #度0xE58589:[0x01,0x21,0x11,0x09,0x09,0x01,0xFF,0x04,0x04,0x04,0x04,0x08,0x08,0x10,0x20,0xC0,0x00,0x08,0x08,0x10,0x20,0x00,0xFE,0x40,0x40,0x40,0x40,0x42,0x42,0x42,0x3E,0x00], #光0xE785A7:[0x00,0x7D,0x44,0x44,0x44,0x44,0x7D,0x44,0x44,0x44,0x44,0x7C,0x00,0x48,0x44,0x84,0x00,0xFC,0x44,0x44,0x44,0x94,0x08,0xFC,0x84,0x84,0x84,0xFC,0x00,0x88,0x44,0x44], #照0xE7839F:[0x10,0x13,0x12,0x16,0x5A,0x52,0x53,0x92,0x12,0x12,0x12,0x2A,0x27,0x42,0x43,0x82,0x00,0xFE,0x02,0x22,0x22,0x22,0xFE,0x22,0x22,0x52,0x4A,0x8A,0x02,0x02,0xFE,0x02], #烟0xE99BBE:[0x00,0x3F,0x01,0x7F,0x49,0x01,0x1D,0x08,0x1F,0x68,0x07,0x7A,0x0F,0x04,0x18,0x00,0x00,0xF8,0x00,0xFC,0x24,0x00,0x70,0x00,0xF0,0x20,0xC0,0x3C,0xE0,0x20,0xC0,0x00], #雾0xE28483: [0x00,0x00,0x00,0x00,0x20,0x33,0x04,0x08,0x08,0x08,0x08,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x40,0x00,0x00,0x00,0x40,0x80,0x00,0x00,0x00,0x00], #℃ }#先找出字符的utf-8编码再在fonts中找到对应的点阵最后将点阵输出到OLED上从而实现在OLED上显示汉字和特殊字符 def chinese(ch_str, x_axis, yaxis): offset 0 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] 16code | data_code[1] 8code | data_code[2]bytedata fonts[code]for y in range(0, 16):a bin(bytedata[y]).replace(0b, )while len(a) 8:a_ 0 ab bin(bytedata[y16]).replace(0b, )while len(b) 8:b_ 0 b_for x in range(0, 8):OLED.pixel(xaxis offset x, yyaxis, int(a[x])) OLED.pixel(xaxis offset x 8, yyaxis, int(b[x])) offset_ 16while True:chinese(温度, 0, 0)OLED.text(:23.67, 32, 5) #在第35行和第5列像素的位置存入字符“:23.67”chinese(℃, 80, 0)chinese(湿度, 0, 16)OLED.text(:53%, 32, 21)OLED.show() #将上述存入到SSD1306芯片中的字符显示到屏幕上time.sleep(1)OLED.fill(0) # 清屏chinese(光照, 0, 32)OLED.text(:12345LX, 32, 37)chinese(烟雾, 0, 48)OLED.text(:1234, 32, 53)OLED.show()time.sleep(1)OLED.fill(0)OLED.text(NO CLEAR SCREEN, 0, 5) #不清屏的后果 SSD1306.py #MicroPython SSD1306 OLED driver, I2C and SPI interfaces created by Adafruitimport time import framebuf# register definitions SET_CONTRAST const(0x81) SET_ENTIRE_ON const(0xa4) SET_NORM_INV const(0xa6) SET_DISP const(0xae) SET_MEM_ADDR const(0x20) SET_COL_ADDR const(0x21) SET_PAGE_ADDR const(0x22) SET_DISP_START_LINE const(0x40) SET_SEG_REMAP const(0xa0) SET_MUX_RATIO const(0xa8) SET_COM_OUT_DIR const(0xc0) SET_DISP_OFFSET const(0xd3) SET_COM_PIN_CFG const(0xda) SET_DISP_CLK_DIV const(0xd5) SET_PRECHARGE const(0xd9) SET_VCOM_DESEL const(0xdb) SET_CHARGE_PUMP const(0x8d)class SSD1306:def init(self, width, height, external_vcc):self.width widthself.height heightself.external_vcc external_vccself.pages self.height // 8# Note the subclass must initialize self.framebuf to a framebuffer.# This is necessary because the underlying data buffer is different# between I2C and SPI implementations (I2C needs an extra byte).self.poweron()self.init_display()def init_display(self):for cmd in (SET_DISP | 0x00, # off# address settingSET_MEM_ADDR, 0x00, # horizontal# resolution and layoutSET_DISP_START_LINE | 0x00,SET_SEG_REMAP | 0x01, # column addr 127 mapped to SEG0SET_MUX_RATIO, self.height - 1,SET_COM_OUT_DIR | 0x08, # scan from COM[N] to COM0SET_DISP_OFFSET, 0x00,SET_COM_PIN_CFG, 0x02 if self.height 32 else 0x12,# timing and driving schemeSET_DISP_CLK_DIV, 0x80,SET_PRECHARGE, 0x22 if self.external_vcc else 0xf1,SET_VCOM_DESEL, 0x30, # 0.83*Vcc# displaySET_CONTRAST, 0xff, # maximumSET_ENTIRE_ON, # output follows RAM contentsSET_NORM_INV, # not inverted# charge pumpSET_CHARGE_PUMP, 0x10 if self.external_vcc else 0x14,SET_DISP | 0x01): # onself.write_cmd(cmd)self.fill(0)self.show()def poweroff(self):self.write_cmd(SET_DISP | 0x00)def contrast(self, contrast):self.write_cmd(SET_CONTRAST)self.write_cmd(contrast)def invert(self, invert):self.write_cmd(SET_NORM_INV | (invert 1))def show(self):x0 0x1 self.width - 1if self.width 64:# displays with width of 64 pixels are shifted by 32x0 32x1 32self.write_cmd(SET_COL_ADDR)self.write_cmd(x0)self.write_cmd(x1)self.write_cmd(SET_PAGE_ADDR)self.write_cmd(0)self.write_cmd(self.pages - 1)self.write_framebuf()def fill(self, col):self.framebuf.fill(col)def pixel(self, x, y, col):self.framebuf.pixel(x, y, col)def scroll(self, dx, dy):self.framebuf.scroll(dx, dy)def text(self, string, x, y, col1):self.framebuf.text(string, x, y, col)class SSD1306_I2C(SSD1306):def init(self, width, height, i2c, addr0x3c, external_vccFalse):self.i2c i2cself.addr addrself.temp bytearray(2)# Add an extra byte to the data buffer to hold an I2C data/command byte# to use hardware-compatible I2C transactions. A memoryview of the# buffer is used to mask this byte from the framebuffer operations# (without a major memory hit as memoryview doesnt copy to a separate# buffer).self.buffer bytearray(((height // 8) * width) 1)self.buffer[0] 0x40 # Set first byte of data buffer to Co0, D/C1self.framebuf framebuf.FrameBuffer1(memoryview(self.buffer)[1:], width, height)super().init(width, height, external_vcc)def write_cmd(self, cmd):self.temp[0] 0x80 # Co1, D/C#0self.temp[1] cmdself.i2c.writeto(self.addr, self.temp)def write_framebuf(self):# Blast out the frame buffer using a single I2C transaction to support# hardware I2C interfaces.self.i2c.writeto(self.addr, self.buffer)def poweron(self):passclass SSD1306_SPI(SSD1306):def init(self, width, height, spi, dc, res, cs, external_vccFalse):self.rate 10 * 1024 * 1024dc.init(dc.OUT, value0)res.init(res.OUT, value0)cs.init(cs.OUT, value1)self.spi spiself.dc dcself.res resself.cs csself.buffer bytearray((height // 8) * width)self.framebuf framebuf.FrameBuffer1(self.buffer, width, height)super().init(width, height, external_vcc)def write_cmd(self, cmd):self.spi.init(baudrateself.rate, polarity0, phase0)self.cs.high()self.dc.low()self.cs.low()self.spi.write(bytearray([cmd]))self.cs.high()def write_framebuf(self):self.spi.init(baudrateself.rate, polarity0, phase0)self.cs.high()self.dc.high()self.cs.low()self.spi.write(self.buffer)self.cs.high()def poweron(self):self.res.high()time.sleep_ms(1)self.res.low()time.sleep_ms(10)self.res.high() 现象