2023年8月1日 星期二

Arduino uno 搭0.96寸 OLED模組，讓ChatGPT幫我們寫程式

 

接線方式：(參考：https://blog.jmaker.com.tw/arduino-ssd1306-oled/)



第一個程式，寫一個計時功能。(因為Arduino UNO沒有時鐘，所以改計時)

================================

#include <Wire.h>

#include <Adafruit_GFX.h>

#include <Adafruit_SSD1306.h>


#define SCREEN_WIDTH 128 // OLED display width, in pixels

#define SCREEN_HEIGHT 64 // OLED display height, in pixels


// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);


void setup() {

  // initialize and clear display

  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);  // Address 0x3C for 128x64

  display.clearDisplay();

  display.display();

}


void loop() {

  display.clearDisplay();

  display.setTextSize(2);

  display.setTextColor(WHITE);


  unsigned long currentTime = millis();

  unsigned long seconds = currentTime / 1000;

  unsigned long minutes = seconds / 60;

  unsigned long hours = minutes / 60;


  seconds = seconds % 60;

  minutes = minutes % 60;

  

  display.setCursor(0,0);

  if (hours < 10)

    display.print('0');

  display.print(hours, DEC);


  display.print(':');

  

  if (minutes < 10)

    display.print('0');

  display.print(minutes, DEC);


  display.print(':');

  

  if (seconds < 10)

    display.print('0');

  display.print(seconds, DEC);


  display.display();

  delay(1000);

}

==========================
實測可行。



第二個程式：把原本數字計時，改成指計。
===========================

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

#define CLOCK_CENTER_X 64
#define CLOCK_CENTER_Y 32
#define CLOCK_RADIUS 30

void setup() {
  // initialize and clear display
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);  // Address 0x3C for 128x64
  display.clearDisplay();
  display.display();
}

void loop() {
  display.clearDisplay();

  unsigned long currentTime = millis();
  unsigned long seconds = currentTime / 1000;
  unsigned long minutes = seconds / 60;
  unsigned long hours = minutes / 60;

  seconds = seconds % 60;
  minutes = minutes % 60;
  hours = hours % 12;

  // draw clock face
  display.drawCircle(CLOCK_CENTER_X, CLOCK_CENTER_Y, CLOCK_RADIUS, WHITE);
  
  // draw hour hand
  drawHand(hours / 12.0, CLOCK_RADIUS * 0.5, 4);
  
  // draw minute hand
  drawHand(minutes / 60.0, CLOCK_RADIUS * 0.7, 2);

  // draw second hand
  drawHand(seconds / 60.0, CLOCK_RADIUS * 0.9, 1);
  
  display.display();
  delay(1000);
}

void drawHand(float fraction, float handLength, uint8_t handWidth) {
  float angle = fraction * 2.0 * PI - PI / 2;
  int16_t x = (int16_t)(CLOCK_CENTER_X + cos(angle) * handLength);
  int16_t y = (int16_t)(CLOCK_CENTER_Y + sin(angle) * handLength);
  display.drawLine(CLOCK_CENTER_X, CLOCK_CENTER_Y, x, y, WHITE);
  display.drawLine(CLOCK_CENTER_X + 1, CLOCK_CENTER_Y, x + 1, y, WHITE);
  display.drawLine(CLOCK_CENTER_X, CLOCK_CENTER_Y + 1, x, y + 1, WHITE);
  display.drawLine(CLOCK_CENTER_X + 1, CLOCK_CENTER_Y + 1, x + 1, y + 1, WHITE);
}
========================
測試成功：





第三個程式：左邊指令，右邊數字時鐘

=第一次===

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

#define CLOCK_CENTER_X 32
#define CLOCK_CENTER_Y 32
#define CLOCK_RADIUS 30

void setup() {
  // initialize and clear display
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);  // Address 0x3C for 128x64
  display.clearDisplay();
  display.display();
}

void loop() {
  display.clearDisplay();

  unsigned long currentTime = millis();
  unsigned long seconds = currentTime / 1000;
  unsigned long minutes = seconds / 60;
  unsigned long hours = minutes / 60;

  seconds = seconds % 60;
  minutes = minutes % 60;
  hours = hours % 24;

  // draw clock face
  display.drawCircle(CLOCK_CENTER_X, CLOCK_CENTER_Y, CLOCK_RADIUS, WHITE);
 
  // draw hour hand
  drawHand(hours / 12.0, CLOCK_RADIUS * 0.5, 4);
 
  // draw minute hand
  drawHand(minutes / 60.0, CLOCK_RADIUS * 0.7, 2);

  // draw second hand
  drawHand(seconds / 60.0, CLOCK_RADIUS * 0.9, 1);

  // draw digital clock
  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.setCursor(70,0);
  if (hours < 10)
    display.print('0');
  display.print(hours, DEC);

  display.print(':');
 
  if (minutes < 10)
    display.print('0');
  display.print(minutes, DEC);

  display.print(':');
 
  if (seconds < 10)
    display.print('0');
  display.print(seconds, DEC);
 
  display.display();
  delay(1000);
}

void drawHand(float fraction, float handLength, uint8_t handWidth) {
  float angle = fraction * 2.0 * PI - PI / 2;
  int16_t x = (int16_t)(CLOCK_CENTER_X + cos(angle) * handLength);
  int16_t y = (int16_t)(CLOCK_CENTER_Y + sin(angle) * handLength);
  display.drawLine(CLOCK_CENTER_X, CLOCK_CENTER_Y, x, y, WHITE);
  display.drawLine(CLOCK_CENTER_X + 1, CLOCK_CENTER_Y, x + 1, y, WHITE);
  display.drawLine(CLOCK_CENTER_X, CLOCK_CENTER_Y + 1, x, y + 1, WHITE);
  display.drawLine(CLOCK_CENTER_X + 1, CLOCK_CENTER_Y + 1, x + 1, y + 1, WHITE);
}

數字超過寬度，跑到下一行。


請chatgpt修改：寬度

=====第二次============

#include <Wire.h> #include <Adafruit_GFX.h> #include <Adafruit_SSD1306.h> #define SCREEN_WIDTH 128 // OLED display width, in pixels #define SCREEN_HEIGHT 64 // OLED display height, in pixels // Declaration for an SSD1306 display connected to I2C (SDA, SCL pins) Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1); #define CLOCK_CENTER_X 32 #define CLOCK_CENTER_Y 32 #define CLOCK_RADIUS 30 void setup() { // initialize and clear display display.begin(SSD1306_SWITCHCAPVCC, 0x3C); // Address 0x3C for 128x64 display.clearDisplay(); display.display(); } void loop() { display.clearDisplay(); unsigned long currentTime = millis(); unsigned long seconds = currentTime / 1000; unsigned long minutes = seconds / 60; unsigned long hours = minutes / 60; seconds = seconds % 60; minutes = minutes % 60; hours = hours % 24; // draw clock face display.drawCircle(CLOCK_CENTER_X, CLOCK_CENTER_Y, CLOCK_RADIUS, WHITE); // draw hour hand drawHand(hours / 12.0, CLOCK_RADIUS * 0.5, 4); // draw minute hand drawHand(minutes / 60.0, CLOCK_RADIUS * 0.7, 2); // draw second hand drawHand(seconds / 60.0, CLOCK_RADIUS * 0.9, 1); // draw digital clock display.setTextSize(1); // reduce text size display.setTextColor(WHITE); display.setCursor(72,0); // adjust cursor position if (hours < 10) display.print('0'); display.print(hours, DEC); display.print(':'); if (minutes < 10) display.print('0'); display.print(minutes, DEC); display.print(':'); if (seconds < 10) display.print('0'); display.print(seconds, DEC); display.display(); delay(1000); } void drawHand(float fraction, float handLength, uint8_t handWidth) { float angle = fraction * 2.0 * PI - PI / 2; int16_t x = (int16_t)(CLOCK_CENTER_X + cos(angle) * handLength); int16_t y = (int16_t)(CLOCK_CENTER_Y + sin(angle) * handLength); display.drawLine(CLOCK_CENTER_X, CLOCK_CENTER_Y, x, y, WHITE); display.drawLine(CLOCK_CENTER_X + 1, CLOCK_CENTER_Y, x + 1, y, WHITE); display.drawLine(CLOCK_CENTER_X, CLOCK_CENTER_Y + 1, x, y + 1, WHITE); display.drawLine(CLOCK_CENTER_X + 1, CLOCK_CENTER_Y + 1, x + 1, y + 1, WHITE); }

是ok的。

拍照有斷線，實際是沒有的

at
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