Arduino – CLCD with I2C – Time (hh:mm:ss) + Switch 2
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#include <Wire.h> #include <LiquidCrystal_I2C.h> LiquidCrystal_I2C lcd(0x27, 16, 2); #define buttonHourUp 5 #define buttonMinuteUp 4 unsigned long times=0; int timesSecond=0; int timesMinute=0; int timesHour=0; unsigned long cnt=0; int timeBar=0; void setup() { pinMode(buttonHourUp, INPUT); pinMode(buttonMinuteUp, INPUT); lcd.init(); delay(1000); lcd.backlight(); lcd.setCursor(0,0); lcd.print(" = Clock! = "); times=millis() / 1000; delay(2000); lcd.clear(); } void loop() { if (digitalRead(buttonHourUp)==HIGH && cnt==0) { timesHour++; if (timesHour>=12) { timesHour=0; } cnt=millis(); } else if (digitalRead(buttonMinuteUp)==HIGH && cnt==0) { timesMinute++; if (timesMinute>=60) { timesMinute=0; } cnt=millis(); } else if (millis() > cnt+300) { cnt=0; } if (millis()/1000 > times) { timesSecond++; times=millis() / 1000; if (timesSecond>=60) { timesMinute++; timesSecond=0; if (timesMinute>=60) { timesHour++; timesMinute=0; if (timesHour>=12) { timesHour=0; } } } } lcd.setCursor(4,0); if (timesHour<10) { lcd.print("0"); } lcd.print(timesHour); lcd.print(":"); if (timesMinute<10) { lcd.print("0"); } lcd.print(timesMinute); lcd.print(":"); if (timesSecond<10) { lcd.print("0"); } lcd.print(timesSecond); lcd.setCursor(0,1); timeBar=map(timesSecond, 0, 59, -1, 15); for (int i=0;i<16;i++) { if (i <= timeBar) { if (timesMinute % 2 == 0) { lcd.write(255); } else { lcd.write(160); } } else { if (timesMinute % 2 == 0) { lcd.write(160); } else { lcd.write(255); } } } } |