DS1302 RTC Real Time Clock Module without Battery
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020

DS1302 RTC Real Time Clock Module without Battery

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  • Product SKU: KG069
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The DS1302 RTC (Real Time Clock) Module is a commonly used module designed for accurate timekeeping in electronic systems.

Here's an overview of the DS1302 RTC module:

Purpose: The DS1302 module is intended for providing real-time clock functionality to electronic devices, maintaining accurate time and date information.

Functionality: It offers real-time clock functions, including time and date keeping, as well as the ability to set alarms and maintain time during a power interruption.

Backup Power: The module often includes a backup battery (usually a CR2032 coin cell battery) that allows it to keep time even when the main power source is disconnected.


Real-Time Clock: The DS1302 module's primary function is to accurately keep track of time and date.

Backup Battery: The presence of a backup battery ensures that timekeeping is maintained even during power outages.

Digital Interface: It communicates with microcontrollers using a simple digital interface.

Alarms: The module often supports setting alarms that can trigger specific actions at predetermined times.

Data Storage: Time and date information can be stored in a battery-backed RAM register.


Timekeeping: Used in a wide range of applications requiring accurate timekeeping, such as digital clocks, timers, and data loggers.

Automation: Integrated into automation systems where time-sensitive actions need to be scheduled.

Data Logging: Employed in data logging systems to timestamp recorded data.

IoT Projects: Suitable for IoT projects requiring synchronized time across devices.

Using the DS1302 RTC Module:

Wiring: Connect the module's pins to the appropriate pins on your microcontroller or development board.

Powering the Module: Provide the module with the required power supply (usually 5V) and ground connection.

Backup Battery: Install the backup battery (CR2032) to ensure timekeeping during power disruptions.

Programming: Write code for your microcontroller platform to communicate with the module, read time and date data, and set alarms if necessary.


Backup Battery Life: The backup battery's lifespan can affect how long the module retains time during power interruptions.

Accuracy: The DS1302 provides basic accuracy suitable for most applications, but for higher precision requirements, more advanced RTC modules might be preferable.

When integrating the DS1302 RTC Real Time Clock Module into a project, understanding its features, backup battery requirements, accuracy, and programming considerations are essential for achieving reliable timekeeping functionality.

NOTE: Here we not provide Battery with Module.

Technical Details : DS1302 RTC Module

  • Input Supply Voltage (VDC) : 3.3
  • Operating Voltage (VDC) : 2V ~ 5.5
  • Operating Temperature (°C) : -40 to 85
  • Storage condition (℃) : -55 to 125

Physical Attributes

  • Length * Width * Height (mm): 43 x 23 x 10
  • Weight (gm) : 6

Integration with Arduino: DS1302 RTC Module

DS1302 RTC

Sample Code

Product Video


Package Includes

  • 1 x DS1302 RTC Real Time Clock Module without Battery

Customer Reviews

Based on 4 reviews
Very handy module

This is a module that does not use SMD components and also no unwanted EERPOM which comes with other versions in market. Since regular components are used very easy for troubleshooting by DIY people.


Value for money,good working

mohd. mukhtaar
Works perfect

I have tested for two days...Works perfect

rahul sharma
very good product