DS1302 Real Time Clock RTC Module

DS1302 Real Time Clock RTC Module 

The DS1302 RTC Module keeps track of the seconds, minutes, hours, day, date, month, and year, including automatic leap-year correction. It supports both 12-hour and 24-hour formats. The module includes a CR2032 coin cell battery holder, allowing it to retain time information for years without external power.

With its simple communication interface, small size, and stable operation, this module is ideal for time-based automation and data-logging applications.

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Features

• DS1302 low-power timekeeping IC
• Measures seconds, minutes, hours, day, date, month, year
• Supports 12-hour and 24-hour clock formats
• Built-in RAM (31 bytes) for user data storage
• Trickle-charge support for rechargeable batteries (if needed)
• 3-wire serial interface for easy communication
• Retains time with battery backup when main power is off
• On-board crystal oscillator for stable timekeeping
• CR2032 battery holder included
• Compact and easily mountable module

Applications

• Time-based automation systems
• Data logging and event recording
• Digital clocks and timers
• Home automation and HVAC controllers
• Security systems and access control
• Embedded systems requiring real-time monitoring
• Attendance systems
• Alarms and scheduling devices