ESP8266直驱TFT屏幕显示JPEG图片

mckk520 · 发表于 2020-4-11 21:37:54

ESP8266直驱TFT屏幕显示JPEG图片，
8266开SPIFFS，直接把XX.jpg图片放在SPIFFS里，读取并显示在屏幕上，下一步，WEB网页直接上传图片，保存在SPIFFS，并更新显示在屏幕上
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=========代码如下，=========

//====================================================================================
// Libraries
//====================================================================================
// Call up the SPIFFS FLASH filing system this is part of the ESP Core
#define FS_NO_GLOBALS
#include <FS.h>
// JPEG decoder library
#include <JPEGDecoder.h>
// SPI library, built into IDE
#include <SPI.h>
// Call up the TFT library
#include <TFT_eSPI.h> // Hardware-specific library for ESP8266
// The TFT control pins are set in the User_Setup.h file <<<<<<<<<<<<<<<<< NOTE!
// that can be found in the "src" folder of the library
// Invoke TFT library
TFT_eSPI tft = TFT_eSPI();
//====================================================================================
// Setup
//====================================================================================
void setup()
{
delay(10);
Serial.begin(115200); // Used for messages and the C array generator
delay(10);
Serial.println("");
Serial.println("NodeMCU decoder test!");
SPIFFS.begin();
Serial.println(" SPIFFS.begin(); !");
Serial.println("");
tft.begin();
tft.setRotation(0); // 0 & 2 Portrait. 1 & 3 landscape
tft.fillScreen(TFT_BLACK);
if (!SPIFFS.begin())
{
Serial.println("SPIFFS initialisation failed!");
while (1) yield(); // Stay here twiddling thumbs waiting
}
Serial.println("\r\nInitialisation done.");
listFiles(); // Lists the files so you can see what is in the SPIFFS
if (!SPIFFS.begin())
{
Serial.println("SPIFFS initialisation failed!，SPIFFS初始化失败 ");
if (!SPIFFS.begin())
{
Serial.println("SPIFFS初始化失败22 ");
while (1) yield(); // Stay here twiddling thumbs waiting //呆在这里，手忙脚乱地等着
}
}
Serial.println("\r\nInitialisation done初始化完成.");
listFiles(); // Lists the files so you can see what is in the SPIFFS //列出文件，以便查看SPIFFS中的内容
}
//====================================================================================
// Loop
//====================================================================================
void loop()
{
// Note the / before the SPIFFS file name must be present, this means the file is in
// the root directory of the SPIFFS, e.g. "/Tiger.jpg" for a file called "Tiger.jpg"
tft.setRotation(0); // portrait
tft.fillScreen(random(0xFFFF));
drawJpeg("/BaboonL", 0, 16); //1
delay(2000);
tft.fillScreen(random(0xFFFF));
drawJpeg("/BaboonP.jpg", 4, 0);//2
delay(2000);
tft.setRotation(1); // landscape
//tft.fillScreen(random(0xFFFF));
drawJpeg("/EagleEye.jpg", 0, 0);//3
delay(2000);
tft.fillScreen(TFT_BLACK);
drawJpeg("/Mouse.jpg", 0, 4);//4
delay(2000);
/*****************
tft.setRotation(0); // portrait
tft.fillScreen(random(0xFFFF));
drawJpeg("/EagleEye160.jpg", 0, 16);
delay(2000);
tft.fillScreen(random(0xFFFF));
drawJpeg("/tiger160.jpg", 4, 0);
delay(2000);
tft.setRotation(1); // landscape
//tft.fillScreen(random(0xFFFF));
drawJpeg("/arduino160.jpg", 0, 0);
delay(2000);
tft.fillScreen(TFT_BLACK);
drawJpeg("/Baboon160.jpg", 0, 4);
delay(2000);
tft.fillScreen(random(0xFFFF));
drawJpeg("/Mouse160.jpg", 0, 11);
delay(2000);
****************/
//=============================
// Create arrays from the jpeg images and send them to the serial port for copy and
// pasting into a sketch (used to make arrays fot the TFT_FLASH_Jpeg sketch)
//createArray("/EagleEye160.jpg");
//createArray("/tiger160.jpg");
//createArray("/Baboon160.jpg");
//createArray("/Mouse160.jpg");
//while(1) yield(); // Stay here
}
//====================================================================================