【MicroPython ESP32】1.8“tft ST7735带中文驱动显示示例

【MicroPython ESP32】1.8"tft ST7735带中文驱动显示示例

本实例基于Thonny平台开发
效果演示

驱动屏幕和开发板

驱动屏幕采用的是合宙1.8"tft屏幕
开发板采用的esp32Dev

接线说明

sck(SCL) =Pin(18)
mosi（SDA）=Pin(23)
dc = Pin(21)
cs = Pin(16)
rst（RES）= Pin(22)
BL--不接

MicroPython固件

采用的是带中文字库的固件，固件资源下载地址：https://github.com/kaixindelele/ssd1306-MicroPython-ESP32-Chinese/

根据个人开发板情况选择对应的固件。

`ST7735`驱动模块

st7735.py代码（保存到MicroPython设备上）

from time import sleep_ms
from ustruct import pack
from machine import SPI,Pin
from micropython import const
import framebuf#   ST7735V registers definitionsNOP     = const(0x00) # No Operation
SWRESET = const(0x01) # Software resetSLPIN   = const(0x10) # Sleep in & booster off
SLPOUT  = const(0x11) # Sleep out & booster on
PTLON   = const(0x12) # Partial mode on
NORON   = const(0x13) # Partial off (Normal)INVOFF  = const(0x20) # Display inversion off
INVON   = const(0x21) # Display inversion on
DISPOFF = const(0x28) # Display off
DISPON  = const(0x29) # Display on
CASET   = const(0x2A) # Column address set
RASET   = const(0x2B) # Row address set
RAMWR   = const(0x2C) # Memory write
RGBSET  = const(0x2D) # Display LUT setPTLAR   = const(0x30) # Partial start/end address set
COLMOD  = const(0x3A) # Interface pixel format
MADCTL  = const(0x36) # Memory data access control# panel function commands
FRMCTR1 = const(0xB1) # In normal mode (Full colors)
FRMCTR2 = const(0xB2) # In Idle mode (8-colors)
FRMCTR3 = const(0xB3) # In partial mode + Full colors
INVCTR  = const(0xB4) # Display inversion controlPWCTR1  = const(0xC0) # Power control settings
PWCTR2  = const(0xC1) # Power control settings
PWCTR3  = const(0xC2) # In normal mode (Full colors)
PWCTR4  = const(0xC3) # In Idle mode (8-colors)
PWCTR5  = const(0xC4) # In partial mode + Full colors
VMCTR1  = const(0xC5) # VCOM controlGMCTRP1 = const(0xE0)
GMCTRN1 = const(0xE1)class ST7735(framebuf.FrameBuffer):def __init__(self, width, height, spi, dc, rst, cs, rot=0, bgr=0):if dc is None:raise RuntimeError('TFT must be initialized with a dc pin number')dc.init(dc.OUT, value=0)if cs is None:raise RuntimeError('TFT must be initialized with a cs pin number')cs.init(cs.OUT, value=1)if rst is not None:rst.init(rst.OUT, value=1)else:self.rst =Noneself.spi = spiself.rot = rotself.dc = dcself.rst = rstself.cs = csself.height = heightself.width = widthself.buffer = bytearray(self.height * self.width*2)super().__init__(self.buffer, self.width, self.height, framebuf.RGB565SW, self.width)if (self.rot ==0):madctl=0x00elif (self.rot ==1):madctl=0xa0elif (self.rot ==2):madctl=0xc0else :madctl=0x60if bgr==0:madctl|=0x08self.madctl = pack('>B', madctl)self.reset()self._write(SLPOUT)sleep_ms(120)for command, data in ((COLMOD,  b"\x05"),(MADCTL,  pack('>B', madctl)),):self._write(command, data)if self.width==80 or self.height==80:self._write(INVON, None)else:self._write(INVOFF, None)buf=bytearray(128)for i in range(32):buf[i]=i*2buf[i+96]=i*2for i in range(64):buf[i+32]=iself._write(RGBSET, buf)#self._write(NORON)#sleep_ms(10)self.show()self._write(DISPON)#sleep_ms(100)def reset(self):if self.rst is None:self._write(SWRESET)sleep_ms(50)returnself.rst.off()sleep_ms(50)self.rst.on()sleep_ms(50)def _write(self, command, data = None):self.cs.off()self.dc.off()self.spi.write(bytearray([command]))self.cs.on()if data is not None:self.cs.off()self.dc.on()self.spi.write(data)self.cs.on()def show(self):if self.width==80 or self.height==80:if self.rot==0 or self.rot==2:self._write(CASET,pack(">HH", 26, self.width+26-1))self._write(RASET,pack(">HH", 1, self.height+1-1))else:self._write(CASET,pack(">HH", 1, self.width+1-1))self._write(RASET,pack(">HH", 26, self.height+26-1))else:if self.rot==0 or self.rot==2:self._write(CASET,pack(">HH", 0, self.width-1))self._write(RASET,pack(">HH", 0, self.height-1))else:self._write(CASET,pack(">HH", 0, self.width-1))self._write(RASET,pack(">HH", 0, self.height-1))self._write(RAMWR,self.buffer)def rgb(self,r,g,b):return ((r&0xf8)<<8)|((g&0xfc)<<3)|((b&0xf8)>>3)

文件架构

实例驱动代码

from st7735 import ST7735
from machine import Pin,SPI
import time# 初始化SPI
spi=SPI(2, baudrate=20000000, polarity=0, phase=0, sck=Pin(18), mosi=Pin(23))# 初始化LCD  rot 是显示方向，bgr是默认显示的颜色
lcd= ST7735 (128, 160, spi,dc=Pin(21),cs=Pin(16),rst=Pin(22),rot=2,bgr=0)lcd.font_load('./GB2312-12.fon') # 加载字体 lcd.text("MicroPython嵌入式学习",2,5,0x5836)
lcd.text("Perseverance9527",16,19,0xff45)
lcd.text("Perseverance9527",16,33,0x07e0)
lcd.text("Perseverance9527",16,47,0xf800)
lcd.text("Perseverance9527",16,61,0xFFE0)
lcd.text("Perseverance9527",16,75,0xEF7D)
lcd.text("Perseverance9527",16,89,0x4208)
lcd.text("Perseverance9527",16,104,0x001f)
lcd.text("Perseverance9527",16,119,0x4208)
lcd.text("Perseverance9527",16,133,0x00ff)
lcd.text("Perseverance9527",16,147,0x0fff)
lcd.show() # 显示出来

运行代码前需要上传对应的字体达到MicroPython设备上。

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【MicroPython ESP32】1.8“tft ST7735带中文驱动显示示例

【MicroPython ESP32】1.8"tft ST7735带中文驱动显示示例

驱动屏幕和开发板

接线说明

MicroPython固件

`ST7735`驱动模块

文件架构

实例驱动代码

【MicroPython ESP32】1.8“tft ST7735带中文驱动显示示例相关推荐

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【MicroPython ESP32】1.8“tft ST7735带中文驱动显示示例

【MicroPython ESP32】1.8"tft ST7735带中文驱动显示示例

驱动屏幕和开发板

接线说明

MicroPython固件

ST7735驱动模块

文件架构

实例驱动代码

【MicroPython ESP32】1.8“tft ST7735带中文驱动显示示例相关推荐

最新文章

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`ST7735`驱动模块