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--- pm:prj2021:avaduva:ceasalarma [2021/06/01 02:18]
roxana.scurtu
+++ pm:prj2021:avaduva:ceasalarma [2021/06/02 18:03] (current)
roxana.scurtu
@@ Line 35: / Line 35: @@
 ==SCHEMA BLOC:==
-{{:pm:prj2021:avaduva:blank_diagram.png?200|}}
+{{:pm:prj2021:avaduva:blank_diagram.png?550|}}
+**Update:
+N-am mai foosit baterie, cum am decis initial si am conectat prin usb placuta la pc-ul meu
+==SCHEMA ELECTRICA:==
+*
+*
+*
+{{:pm:prj2021:avaduva:schema_ro.png?550|}}
+*
+*
+*
+==Cum functioneaza?==
+Am folosit un Breadboard, pentru ca nu aveam pe placuta suficienti pini pentru toate componentele.
+Prin intermediul modulului RTC- real time clock preiau ora si data exacta, folosindu-ma de libraria DS1302
+LCD-ul ales de mine are modulul I2C integrat, l-as fi putut folosi si pe cel fara modul integrat, dar doar pe acesta l-am mai gasit disponibil.
+Interfata I2C are 4 pini, i am conectat direct la arduiono.
+By default LCD-ul afiseaza ora si data exacta pe care le ia prin intermediul modulului RTC.
+In momentul in care doresc sa setez alarma, apas pe primul buton si imi va intra in modul de setare al alarmei, afisandu-mi pe display :
+hour= ? , min=? pe care le pot seta de pe al 2-lea si al 3-lea buton.Prin intermediul celui de-al 4-lea buton ies din modul de setare al alarmei si voi avea alarma setata.
+Daca de exemplu am setat alarma in 3h 5m, cand se va scurge timpul, buzzer ul se va activa printr-un feedback sonor.
+{{:pm:prj2021:avaduva:20210601_155151.jpg?550|}}
+==SOFTWARE DESIGN:==
+<code>
+//am inclus biblioteca 12C si cea pt rtc(DS1302.h)
+#include <Wire.h>
+#include <LiquidCrystal_I2C.h>
+// Set the LCD address to 0x27 for a 16 chars and 2 line display
+LiquidCrystal_I2C lcd(0x3F, 16, 2);
+#include <DS1302.h>
+int Hour;
+int Min;
+//am setat pinii - in functie de cum i am pus eu pe placuta
+int pset = 8; // pushbutton for setting alarm
+int phour = 9; // pushbutton for hour
+int pmin = 10; // pushbutton for minutes
+int pexit = 11; // pushbutton for exit of set alarm
+int buzzer = 6;
+int h;
+int m;
+//Am definit starea butoanelor
+int buttonforset = 0; // pushbutton state for setting alarm
+int buttonforhour = 0; // pushbutton state for hour
+int buttonformin = 0;// pushbutton state for minutes
+int buttonforexit = 0; // pushbutton state for exit of set alarm
+int activate=0;
+ Time t;
+// Init the DS1302
+//pinii de pe placuta
+DS1302 rtc(2, 3, 4);
+void setup()
+{
+ pinMode(pset, INPUT);
+ pinMode(phour, INPUT);
+ pinMode(pmin, INPUT);
+ pinMode(pexit, INPUT);
+ // Set the clock to run-mode, and disable the write protection
+ rtc.halt(false);
+ rtc.writeProtect(false);
+ // Setup LCD to 16x2 characters
+ lcd.begin();
+// le putem decomenta daca vrem sa folosim valorile deja existente in DS1302
+ //rtc.setDOW(SATURDAY); // Set Day-of-Week to FRIDAY
+ //rtc.setTime(10, 0, 0); // Set the time to 12:00:00 (24hr format)
+ //rtc.setDate(11, 11, 2017); // Set the date to August 6th, 2010
+}
+void loop()
+{
+ if (activate == 0) {
+// Display time on the right conrner upper line
+ lcd.setCursor(0, 0);
+ lcd.print("Time: ");
+ lcd.setCursor(6, 0);
+ lcd.print(rtc.getTimeStr());
+ // Display abbreviated Day-of-Week in the lower left corner
+ //lcd.setCursor(0, 1);
+ //lcd.print(rtc.getDOWStr(FORMAT_SHORT));
+ // Display date in the lower right corner
+ lcd.setCursor(0, 1);
+ lcd.print("Date: ");
+ lcd.setCursor(6, 1);
+ lcd.print(rtc.getDateStr());
+ t = rtc.getTime();
+ Hour = t.hour;
+ Min = t.min;
+ buttonforset = digitalRead(pset);
+ } // setting button pressed
+ if (buttonforset == HIGH) {
+ activate =1;
+ lcd.clear(); }
+ while(activate== 1){
+ lcd.setCursor(0,0);
+ lcd.print("Set Alarm");
+ lcd.setCursor(0,1);
+ lcd.print("Hour= ");
+ lcd.setCursor(9,1);
+ lcd.print("Min= ");
+ buttonforhour = digitalRead(phour); // set hour for alarm
+ if (buttonforhour == HIGH){
+ h++;
+ lcd.setCursor(5,1);
+ lcd.print(h);
+ if (h>23){
+ h=0;
+ lcd.clear(); }
+ delay(100);
+ }
+ buttonformin = digitalRead(pmin); // set minutes for alarm
+ if (buttonformin == HIGH){
+ m++;
+ lcd.setCursor(13,1);
+ lcd.print(m);
+ if (m>59){
+ m=0;
+ lcd.clear();}
+ delay(100);
+ }
+lcd.setCursor(5,1);
+ lcd.print(h);
+ lcd.setCursor(13,1);
+ lcd.print(m);
+ buttonforexit = digitalRead(pexit); // exit from set alarm mode
+ if (buttonforexit == HIGH){
+ activate = 0;
+ lcd.clear();
+   }
+ }
+ if (Hour== h && Min== m) {
+ tone(6,400,300);}
+ delay (500);
+}
+</code>
+==REZULTATE==
+[[https://www.youtube.com/watch?v=0oWU8FnWFjw|rezultat clip]]
+==CONCLUZII==
+A fostun proiect interesant, singurele probleme pe care le-am intampinat au fost cu arduino- programul instalat, avand diferite probleme cu fisierele si cu setarile, dar ciecuitul si codul nu mi-au dat batai de cap.
+==BIBLIOGRAFIE==
+[[pm:prj2021:avaduva:ceasalarma|lpdfproiect]]
+https://github.com/fdebrabander/Arduino-LiquidCrystal-I2C-library
+https://www.arduino.cc/reference/en/libraries/ds3231/
+https://howtomechatronics.com/tutorials/arduino/arduino-ds3231-real-time-clock-tutorial/