Real-Time Digital Clock With Voice

Noridah , Ishak (2008) Real-Time Digital Clock With Voice. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This project use DS 1307 Serial Real-Time Clock and ISD2590 single-chip record and playback voice. LCD are uses to display seconds, minutes, hours, days, date, months and year information. DS 1307 Serial Real-Time Clock is a low-power; full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially via 2-wire, bi-directional bus. The clock/calendar provides second, minutes, hours, day, date, months and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap years. The clock operates in either 24-hour or 12-hour format with AM/PM indicator. The DS1307 has a build-in power senses circuit that's detects power failures and automatically switches to the battery supply. The ISD2590 have benefit of Winbond's ChipCorder technology is the use of on-chip nonvolatile memory, providing zero-power message storage. The massage is retained for up to 100 years typically without power. In addition, the device can be re-recorded typically over 100,000 times. It's designed to be used in microprocessor or microcontroller-based system. RTC with voice will display time, calendar, and voice to inform the time in each hour and any time when a switch button is pressed.

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