set and read the current date and time; set, clear, and detect two, independent, Time-of-Day alarms; perform certain conversions and calculations with time data; manage certain hardware inside the ...

Arduino Real Time Alarm Clock DS3231 with TM1638. Arduino Clock with Battery backup (real time clock), Time, Date, Alarm, Temperature, TM1638 seven segment module output and input, Display Sleep mode.

When you read “Arduino wristwatch”, you fall into the trap of envisioning an Arduino UNO clumsily strapped to someone’s wrist. [Marijo Blažević’s] creation is much more polished than that. A round ...

Abstract: This research explores the development of an Arduino-based Fingerprint Scan for Attendance-taking System aimed at addressing the shortcomings of traditional attendance methods in educational ...