Created
October 31, 2025 02:33
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| #include <Wire.h> | |
| #include <Adafruit_GFX.h> | |
| #include "Adafruit_LEDBackpack.h" | |
| Adafruit_7segment matrix = Adafruit_7segment(); | |
| int hours = 12; | |
| int minutes = 0; | |
| int seconds = 0; | |
| void setup() { | |
| matrix.begin(0x70); | |
| matrix.setBrightness(8); | |
| } | |
| void loop() { | |
| // แสดงเวลาในรูปแบบ HH:MM | |
| int displayValue = hours * 100 + minutes; | |
| matrix.print(displayValue, DEC); | |
| // แสดงเครื่องหมาย colon (:) กระพริบ | |
| matrix.drawColon(seconds % 2 == 0); | |
| matrix.writeDisplay(); | |
| // อัปเดตเวลา | |
| seconds++; | |
| if (seconds >= 60) { | |
| seconds = 0; | |
| minutes++; | |
| if (minutes >= 60) { | |
| minutes = 0; | |
| hours++; | |
| if (hours >= 24) { | |
| hours = 0; | |
| } | |
| } | |
| } | |
| delay(1000); | |
| } |
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