Cilj ovog rada bio je projektirati funkcionalni digitalni sat s mogućnošću automatskog podešavanja. Prije svega bilo je potrebno pronaći odgovarajuće sklopovlje te sve povezati preko arduino platforme. Arduino je platforma namijenjena za izgradnju elektroničkih projekata. Za preuzimanje točnog vremena sa satelita korišten je GPS Neo 6M modul. Za pohranjivanje i osvježavanje tog vremena bio je potreban RTC, a odabran je modul DS1307. Podatke je bilo još potrebno prikazati, a to je bilo potrebno napraviti pomoću matričnih pokaznika. Odabran je dvadesetčetverosatni prikaz gdje su po dva matrična pokaznika prikazivala po jedan segment (sat, minuta, sekunda). Na kraju je programski ostvaren i meni zbog lakšeg pristupa opcijama poput odabira zone, ručnog postavljanja i prisilne sinkronizacije. Korištena su četiri tipkala koja su bila dostatna za navigaciju menijem. Nakon što je sve bilo završeno cijeli sklop bilo je potrebno zaštititi. Napravljeno je kućište od pleksiglasa.

The goal of this paper was to develop an automatically synchronized watch. Firstly, it was necessary to obtain all the needed hardware and connect it to Arduino. Arduino is a platform with a purpose of building electronical projects. GPS Neo 6M module was used to get the needed time information from satellite. Storing and updating the time from GPS was task of RTC module DS1307. All the data obtained had to be shown on 8x8 matrices. The format used to display the time was 24 hour format and each time segment (hour, minute, second) got 2 matrices. In the end, the menu was created so it could be easier to access different options such as zone choosing, manual time setting and force time synchronization. Cruising through the menu was made possible with only four buttons. After all that was finished, hardware needed to be protected by making a case. The case was made from plexiglass.