Penjadwalan dan durasi aktif relay dengan setting melalui tombol berbasis arduino

Untuk mengatur jadwalnya, pada contoh ini menggunakan 3 tombol yaitu set, up dan down. adapun komponen yang digunakan adalah :

1. Arduino uno
2. rtc ds3231
3. lcd 16×02 i2c
4. relay 8 channel

Skema penjadwalan relay menggunakan arduino :

koding arduino penjadwalan relay :

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#define pinTombolSet        A0 #define pinTombolUp         A1 #define pinTombolDown       A2   #define pinRelay1           2 #define pinRelay2           3 #define pinRelay3           4 #define pinRelay4           5 #define pinRelay5           6 #define pinRelay6           7 #define pinRelay7           8 #define pinRelay8           9   #define relayOn             LOW #define jumlahRelay         8   #include <Wire.h> #include <LiquidCrystal_I2C.h> #include "Sodaq_DS3231.h" #include "EEPROM.h"   LiquidCrystal_I2C lcd(0x3F, 16, 2);//coba juga 0x27   byte setting[jumlahRelay * 4]; byte menu = 0; char buf[32]; DateTime now; byte detikSebelumnya = 60; byte pinRelay[] = {pinRelay1, pinRelay2, pinRelay3, pinRelay4, pinRelay5, pinRelay6, pinRelay7, pinRelay8};   void setup() {   pinMode(pinTombolSet, INPUT_PULLUP);   pinMode(pinTombolUp, INPUT_PULLUP);   pinMode(pinTombolDown, INPUT_PULLUP);     for (byte i = 0; i < jumlahRelay; i++)   {     digitalWrite(pinRelay[i], !relayOn);     pinMode(pinRelay[i], OUTPUT);   }     Serial.begin(9600);   Serial.println(F("Penjadwalan dan durasi aktif relay dengan setting melalui tombol berbasis arduino"));   Serial.println(F("https://www.semesin.com/project"));   Serial.println();       Wire.begin();   rtc.begin();   DateTime dt(2011, 11, 10, 15, 18, 0, 5); // set tanggal dan waktu (format): tahun, bulan tanggal, jam, menit, detik, hari (1=minggu, 7=sabtu)   rtc.setDateTime(dt);     Wire.beginTransmission(0x3F);   if (Wire.endTransmission())   {     lcd = LiquidCrystal_I2C(0x27, 16, 2);   }   lcd.begin();     lcd.backlight();   lcd.print("Jadwal relay");   lcd.setCursor(0, 1);   lcd.print("www.Semesin.com");   delay(3000);     lcd.clear();     if (EEPROM.read(0) != 12)   {     EEPROM.update(0, 12);     for (byte i = 0; i < jumlahRelay * 4; i++)     {       setting[i] = 0;     }     EEPROM.put(1, setting);   }   EEPROM.get(1, setting);     Serial.println("Sistem mulai");   }     void loop() {   now = rtc.now();   if (detikSebelumnya != now.second())   {     detikSebelumnya = now.second();     if (now.second() == 0)     {       for (byte i = 0; i < jumlahRelay; i++)       {         uint16_t unixNow = (now.hour() * 60) +  now.minute();         uint16_t unixWaktu = ((setting[(i * 4) + 0] * 60) +  setting[(i * 4) + 1]);         uint16_t unixDurasi = ((setting[(i * 4) + 2] * 60) +  setting[(i * 4) + 3]);         if (unixNow == unixWaktu)         {           digitalWrite(pinRelay[i], LOW);           Serial.print("Relay ");           Serial.print(i + 1);           Serial.println(" aktif");         }         if (unixNow == unixWaktu + unixDurasi)         {           digitalWrite(pinRelay[i], HIGH);           Serial.print("Relay ");           Serial.print(i + 1);           Serial.println(" tidak aktif");         }       }     }     if (!menu)     {       sprintf(buf, "%02d/%02d/%04d", now.date(), now.month(), now.year());       lcd.setCursor(3, 0);       lcd.print(buf);       sprintf(buf, "%02d:%02d:%02d", now.hour(), now.minute(), now.second());       lcd.setCursor(4, 1);       lcd.print(buf);     }   }     if (menu)   {     if (!digitalRead(pinTombolUp))     {       delay(50);       while (!digitalRead(pinTombolUp))       {         setting[menu - 1]++;         if ((menu - 1) % 2)         {           if (setting[menu - 1] >= 60)           {             setting[menu - 1] = 0;           }         }         else         {           if (setting[menu - 1] >= 24)           {             setting[menu - 1] = 0;           }         }           tampilanMenu();         delay(100);       }     }     if (!digitalRead(pinTombolDown))     {       delay(50);       while (!digitalRead(pinTombolDown))       {           if ((menu - 1) % 2)         {           if (setting[menu - 1] == 0)           {             setting[menu - 1] = 59;           }           else           {             setting[menu - 1]--;           }         }         else         {           if (setting[menu - 1] == 0)           {             setting[menu - 1] = 23;           }           else           {             setting[menu - 1]--;           }         }           tampilanMenu();         delay(100);       }     }   }     if (!digitalRead(pinTombolSet))   {     delay(50);     if (!digitalRead(pinTombolSet))     {       menu++;         if (menu == jumlahRelay * 4 + 1)       {         menu = 0;         lcd.clear();         lcd.noCursor();         EEPROM.put(1, setting);       }       else       {         lcd.clear();         lcd.setCursor(2, 0);         lcd.print("Set Relay ");         lcd.print(((menu - 1) / 4) + 1);         tampilanMenu();       }               long miliisTekanPanjang = millis() + 3000;       while (!digitalRead(pinTombolSet))       {         if (miliisTekanPanjang < millis())         {           menu = 0;           lcd.clear();           lcd.noCursor();           EEPROM.put(1, setting);           }       }     }   } } void tampilanMenu() {   sprintf(buf, "%s : %02d:%02d", ((menu - 1) % 4) / 2 ? "Durasi" : "Waktu ", setting[(menu - 1) & 0xFE], setting[((menu - 1) & 0xFE) + 1]);   lcd.setCursor(0, 1);   lcd.print(buf);     lcd.setCursor(((menu - 1) % 2) ? 12 : 9, 1);   lcd.cursor(); }