DS1302 RTC Real Time Clock Module with battery

DS1302 RTC Real Time Clock Module with Battery

Accurate Timekeeping Module for Arduino, ESP, and Microcontrollers

The DS1302 RTC (Real-Time Clock) Module is a low-power timekeeping solution that keeps track of seconds, minutes, hours, days, date, month, and year—even during power outages—thanks to its onboard backup CR1220 coin cell battery.

With serial interface and onboard crystal oscillator, this module is ideal for data logging, alarms, timers, clocks, and time-stamped projects using Arduino, Raspberry Pi, or ESP boards.

✅ Key Features

• Real-Time Clock (RTC) counts seconds, minutes, hours, day, date, month, and year

• Leap-year compensation and 12/24 hour format

• Onboard CR1220 battery holder for power backup

• Simple 3-wire serial interface

• Onboard 32.768kHz crystal oscillator for accurate timing

• Extremely low power consumption in backup mode

🔧 Specifications

📦 Package Includes

• 1 × DS1302 RTC Module with Battery Holder

• 1 × CR1220 Coin Cell Battery (included or optional based on kit)

💡 Tip: Compatible with popular libraries like DS1302RTC in the Arduino ecosystem. A perfect choice for time-sensitive and low-power embedded applications.