Arduion+1.8TFT(SPI)显示屏的图片显示

news/2024/10/19 15:34:45/

刚入手了一块UNO Arduion开发板,手头还有一块1.8寸的TF屏幕,初学者就想着能不能用来显示一下图片

显示屏图片

 接线方式

 代码部分 

使用了LCDWIKI_GUI和LCDWIKI_SPI两个库

// IMPORTANT: LCDWIKI_SPI LIBRARY MUST BE SPECIFICALLY
// CONFIGURED FOR EITHER THE TFT SHIELD OR THE BREAKOUT BOARD.//This program is a demo of how to display scroll.//Set the pins to the correct ones for your development shield or breakout board.
//when using the BREAKOUT BOARD only and using these software spi lines to the LCD,
//You can use any free pin to define the pins,
//if you don't need to control the LED pin,you can set it to 3.3Vand set the pin definition to -1.
//for example
//pin usage as follow:
//                      CS   RS   RST   SDA   CLK   VCC   GND    
//Arduino Mega2560&Uno  A5   A3   A4    A2    A1    5V    GND//Remember to set the pins to suit your display module!
/********************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, QD electronic SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE 
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
**********************************************************************************/
#include <LCDWIKI_GUI.h> //Core graphics library
#include <LCDWIKI_SPI.h> //Hardware-specific library#include "qq_logo.h"//包含的图像字符文件//paramters define
#define MODEL ST7735S
#define CS   A5
#define CD   A3
#define RST  A4
#define SDA  A2
#define SCK  A1
#define LED  -1   //if you don't need to control the LED pin,you should set it to -1 and set it to 3.3V//the definiens of software spi mode as follow:
//if the IC model is known or the modules is unreadable,you can use this constructed function
LCDWIKI_SPI my_lcd(MODEL,CS,CD,-1,SDA,RST,SCK,LED); //model,cs,dc,sdo,sda,reset,sck,led#define BLACK   0x0000
#define BLUE    0x001F
#define RED     0xF800
#define GREEN   0x07E0
#define CYAN    0x07FF
#define MAGENTA 0xF81F
#define YELLOW  0xFFE0
#define WHITE   0xFFFFchar *color_name[] = { "BLUE", "GREEN", "RED", "WHITE" ,"CYAN","MAGENTA","YELLOW"};
uint16_t color_mask[] = { 0x001F, 0x07E0, 0xF800, 0xFFFF,0x07FF,0xF81F,0xFFE0 };void showpic(void)
{my_lcd.Set_Addr_Window(20, 20, 59, 59);//59-20+1 共40个像素点 my_lcd.Push_Any_Color(qq, 1600, 1, 1);}void setup()
{my_lcd.Init_LCD();my_lcd.Fill_Screen(BLACK);//show_pic();
}void loop() 
{my_lcd.Invert_Display(false);my_lcd.Set_Rotation(0);showpic();delay(5000);}

图像代码,由image2lcd转码得到

#ifndef __FONT_H
#define __FONT_H #ifdef __AVR__
#include <avr/pgmspace.h>
#elif defined(ESP8266)
#include <pgmspace.h>
#else
#define PROGMEM
#endifconst unsigned char qq[] PROGMEM = { /* 0X00,0X10,0X28,0X00,0X28,0X00,0X01,0X1B, */
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};
#endif

经历了很多问题 

如驱动设置与接口就卡了一阵子

爆动态内存,把图片数组标识成PORGRAM才能正常编译

刚开始显示图片是歪的 后来才发现设置的显示区域是(20,20)到(60,60),实际应为(20,20)到(59,59)正好是40*40像素的图片

还有就是试过更大像素的图片,但是始终显示不全,还没有探究的到问题的解决办法


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