RTC DS1302 Real Time Clock Module for Arduino – Accurate Timekeeping Solution

The RTC DS1302 Real Time Clock Module for Arduino is a low-power timekeeping device designed to maintain accurate date and time data even when your main power source is disconnected. Equipped with a built-in rechargeable backup battery, this module ensures that timekeeping continues seamlessly, making it essential for automation, data logging, and time-based control systems.

This compact yet powerful module uses the DS1302 IC, a popular real-time clock chip that communicates via a simple serial interface. It supports second, minute, hour, day, date, month, and year tracking, including leap-year compensation up to 2100. Whether you’re developing an alarm clock, a digital data logger, or a time-based security system, the DS1302 RTC ensures your project never loses track of time.

Features

1. Accurate Timekeeping:
   The DS1302 module provides precise time and date tracking with minimal drift, ensuring long-term stability.

2. Battery Backup:
   Includes a coin-cell holder for a backup battery, preserving time data during power loss.

3. Low Power Consumption:
   Ideal for battery-powered projects with minimal standby current.

4. Easy Integration:
   Works directly with Arduino, Raspberry Pi, and most microcontrollers using simple 3-wire communication.

5. Compact and Durable Design:
   Small form factor fits perfectly into embedded systems and DIY circuits.

6. Leap Year Correction:
   Automatically adjusts for leap years and months with varying days.

7. Readable Data Format:
   Provides both binary and BCD-coded output for easy data processing.

Technical Specifications

• Operating Voltage: 3.3V to 5V DC

• Interface Type: 3-Wire Serial Communication

• Data Retention: Up to 10 years with battery backup

• Current Consumption: < 300nA during backup mode

• Clock Range: Seconds, Minutes, Hours, Day, Date, Month, Year

• Temperature Range: -40°C to +85°C

• Battery Type: CR2032 (not included)

• Chip Used: DS1302 RTC IC

Applications

1. Arduino Clocks:
   Create digital clocks, wall clocks, or alarm clocks with accurate timing.

2. Data Logging Projects:
   Record time-stamped data for sensors, temperature logs, or IoT devices.

3. Home Automation:
   Automate lights, fans, or irrigation systems based on time schedules.

4. Smart Energy Systems:
   Monitor energy usage with accurate time records for analysis.

5. Attendance Systems:
   Maintain precise entry and exit time records for personnel management.

The DS1302 RTC module’s wide range of applications makes it a valuable addition to both beginner and professional electronic projects.

Working Principle

The DS1302 operates using a three-wire serial interface, communicating with the microcontroller through clock (SCLK), data (I/O), and reset (RST) pins. It maintains continuous timekeeping internally, powered by the backup battery when the main supply is off. The chip uses BCD format to represent date and time data, ensuring easy conversion and readability by Arduino libraries.

When connected to Arduino, developers can use the RTClib or DS1302 library to access time and date data easily. Once initialized, the module provides real-time clock readings with precise second-to-second accuracy.

Why Choose RTC from Electroxbd?

When you buy from Electroxbd, you get more than just an electronic module — you receive reliability, quality assurance, and expert support. All our products are tested before shipping to ensure flawless performance.

• 100% Original and tested module

• Affordable pricing across Bangladesh

• Fast delivery to all districts

• Trusted source for electronic components

Office Address:
H#1/1, Opposite of RH Chhatrabash, Madrasa More, Debisingpara, Boalia, Rajshahi, Bangladesh

Choose Electroxbd – Trusted Source for Reliable Electronic Parts for your next Arduino timekeeping project.

Common Questions:

Q: What is the price of RTC DS1302 Real Time Clock Module for Arduino in Bangladesh?

A: The latest price of RTC DS1302 Real Time Clock Module for Arduino in Bangladesh is 150 BDT.

Q: Where to buy RTC DS1302 Real Time Clock Module for Arduino in Bangladesh?

A: You can buy the RTC DS1302 Real Time Clock Module for Arduino at the best price from ElectroXBD in Bangladesh.