esp32与0.96寸屏幕实现信息传输

esp32与0.96寸屏幕实现信息传输代码

示例代码:

#include <Wire.h> 
#include "SSD1306Wire.h" 

SSD1306Wire display(0x3c, SDA, SCL);   // ADDRESS, SDA, SCL

void drawLines() {
  for (int16_t i = 0; i < display.getWidth(); i += 4) {
    display.drawLine(0, 0, i, display.getHeight() - 1);
    display.display();
    delay(10);
  }
  for (int16_t i = 0; i < display.getHeight(); i += 4) {
    display.drawLine(0, 0, display.getWidth() - 1, i);
    display.display();
    delay(10);
  }
  delay(250);

  display.clear();
  for (int16_t i = 0; i < display.getWidth(); i += 4) {
    display.drawLine(0, display.getHeight() - 1, i, 0);
    display.display();
    delay(10);
  }
  for (int16_t i = display.getHeight() - 1; i >= 0; i -= 4) {
    display.drawLine(0, display.getHeight() - 1, display.getWidth() - 1, i);
    display.display();
    delay(10);
  }
  delay(250);

  display.clear();
  for (int16_t i = display.getWidth() - 1; i >= 0; i -= 4) {
    display.drawLine(display.getWidth() - 1, display.getHeight() - 1, i, 0);
    display.display();
    delay(10);
  }
  for (int16_t i = display.getHeight() - 1; i >= 0; i -= 4) {
    display.drawLine(display.getWidth() - 1, display.getHeight() - 1, 0, i);
    display.display();
    delay(10);
  }
  delay(250);
  display.clear();
  for (int16_t i = 0; i < display.getHeight(); i += 4) {
    display.drawLine(display.getWidth() - 1, 0, 0, i);
    display.display();
    delay(10);
  }
  for (int16_t i = 0; i < display.getWidth(); i += 4) {
    display.drawLine(display.getWidth() - 1, 0, i, display.getHeight() - 1);
    display.display();
    delay(10);
  }
  delay(250);
}

// Adapted from Adafruit_SSD1306
void drawRect(void) {
  for (int16_t i = 0; i < display.getHeight() / 2; i += 2) {
    display.drawRect(i, i, display.getWidth() - 2 * i, display.getHeight() - 2 * i);
    display.display();
    delay(10);
  }
}

// Adapted from Adafruit_SSD1306
void fillRect(void) {
  uint8_t color = 1;
  for (int16_t i = 0; i < display.getHeight() / 2; i += 3) {
    display.setColor((color % 2 == 0) ? BLACK : WHITE); // alternate colors
    display.fillRect(i, i, display.getWidth() - i * 2, display.getHeight() - i * 2);
    display.display();
    delay(10);
    color++;
  }
  // Reset back to WHITE
  display.setColor(WHITE);
}

// Adapted from Adafruit_SSD1306
void drawCircle(void) {
  for (int16_t i = 0; i < display.getHeight(); i += 2) {
    display.drawCircle(display.getWidth() / 2, display.getHeight() / 2, i);
    display.display();
    delay(10);
  }
  delay(1000);
  display.clear();

  // This will draw the part of the circel in quadrant 1
  // Quadrants are numberd like this:
  //   0010 | 0001
  //  ------|-----
  //   0100 | 1000
  //
  display.drawCircleQuads(display.getWidth() / 2, display.getHeight() / 2, display.getHeight() / 4, 0b00000001);
  display.display();
  delay(200);
  display.drawCircleQuads(display.getWidth() / 2, display.getHeight() / 2, display.getHeight() / 4, 0b00000011);
  display.display();
  delay(200);
  display.drawCircleQuads(display.getWidth() / 2, display.getHeight() / 2, display.getHeight() / 4, 0b00000111);
  display.display();
  delay(200);
  display.drawCircleQuads(display.getWidth() / 2, display.getHeight() / 2, display.getHeight() / 4, 0b00001111);
  display.display();
}

void printBuffer(void) {
  // Initialize the log buffer
  // allocate memory to store 8 lines of text and 30 chars per line.
  display.setLogBuffer(5, 20);  //5表述屏幕显示5行，20表示每行存放的char的长度

  // Some test data
  const char* test[] = {
    "Hello",
    "World" ,
    "----",
    "Show off",
    "how",
    "the log buffer",
    "is",
    "working.",
    "Even",
    "scrolling is",
    "working"
  };

  for (uint8_t i = 0; i < 11; i++) {
    display.clear();
    // Print to the screen
    display.println(test[i]);
    // Draw it to the internal screen buffer
    display.drawLogBuffer(0, 0);
    // Display it on the screen
    display.display();
    delay(500);
  }
}

void setup() {
  display.init();

  display.flipScreenVertically();

  display.setContrast(255);

  drawLines();
  delay(1000);
  display.clear();

  drawRect();
  delay(1000);
  display.clear();

  fillRect();
  delay(1000);
  display.clear();

  drawCircle();
  delay(1000);
  display.clear();

  printBuffer();
  delay(1000);
  display.clear();
}

void loop() {
  
  display.init();
  display.flipScreenVertically();
  printBuffer();
  delay(1000);
  display.clear();
 }

程序弄好了，接下来是接线图：

VS Code platform IDE软件使用：

最终结果：

ps:图片屏幕展示内容与示例代码实现不一样，图片里的是我另一个代码

赏

谢谢观看