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DS1307 AT24C32 RTC Module - Real-Time Clock with EEPROM for Arduino & Microcontrollers
Keep your projects perfectly on time with the DS1307 AT24C32 RTC Module from The Engineer Store, Bengaluru. This compact, reliable real-time clock module combines the DS1307 RTC chip with an AT24C32 32Kbit EEPROM, giving you accurate timekeeping and onboard non-volatile data storage over the I2C interface. Ideal for data loggers, alarm systems, attendance trackers, and any application requiring persistent date/time tracking - even during power outages thanks to its CR2032 battery backup. Fast shipping across India with expert technical support included.
Specifications
| RTC Chip | DS1307 (I2C Real-Time Clock) |
| EEPROM | AT24C32 - 32Kbit (4KB) Non-Volatile Memory |
| Communication | I2C (TWI) Interface - SDA & SCL |
| Operating Voltage | 3.3V - 5V DC |
| Timekeeping | Seconds, Minutes, Hours, Day, Date, Month, Year (with leap-year compensation up to 2100) |
| Clock Format | 12-hour (AM/PM) or 24-hour selectable |
| Battery Backup | CR2032 coin cell socket (battery may or may not be included) |
| Oscillator | 32.768 kHz crystal (onboard) |
| Square Wave Output | Programmable - 1Hz, 4.096kHz, 8.192kHz, or 32.768kHz |
| I2C Address (RTC) | 0x68 (fixed) |
| I2C Address (EEPROM) | 0x50 - 0x57 (configurable via A0, A1, A2 pads) |
| Board Dimensions | Approx. 28mm x 27mm x 8.4mm |
| Mounting | 4 mounting holes for secure installation |
| Pin Header | SDA, SCL, VCC, GND, SQ (square wave output), DS (optional DS18B20 temperature sensor header) |
| Compatibility | Arduino, ESP8266, ESP32, Raspberry Pi, STM32, PIC, and all I2C-capable microcontrollers |
| Type | Clock / Timing Module |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Accurate Timekeeping: DS1307 maintains seconds, minutes, hours, day, date, month, and year with automatic leap-year correction through 2100.
- Battery Backup: CR2032 coin cell keeps the clock running for years even when main power is disconnected - no time resets on power cycles.
- 32Kbit EEPROM Onboard: AT24C32 provides 4KB of non-volatile storage for logging data, storing calibration values, or saving configuration settings.
- Simple I2C Interface: Only two data lines (SDA & SCL) needed - easily connect multiple I2C devices on the same bus.
- Wide Voltage Compatibility: Works seamlessly with both 3.3V and 5V logic-level microcontrollers.
- Programmable Square Wave Output: Generate precise clock signals at 1Hz, 4.096kHz, 8.192kHz, or 32.768kHz for timing applications.
- Optional Temperature Sensor Header: Dedicated DS pin for adding a DS18B20 temperature sensor directly on the module.
- Compact & Mountable: Small form factor with four mounting holes for easy integration into enclosures and project boards.
- Extensive Library Support: Compatible with popular Arduino libraries like RTClib, DS1307RTC, and Wire - get running in minutes.
Why Choose This RTC Module?
- 100% authentic DS1307 and AT24C32 ICs sourced from trusted suppliers
- Dual functionality - real-time clock plus EEPROM storage on a single compact board
- Plug-and-play with Arduino IDE using widely available libraries and example code
- 1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse to most locations across India
- Expert technical support to help you with wiring, code, and troubleshooting
Wiring Guide (Arduino UNO)
| Module Pin | Arduino UNO Pin |
| VCC | 5V |
| GND | GND |
| SDA | A |
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy DS1307 AT24C32 RTC module Online in India
Purchase the DS1307 AT24C32 RTC module online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on DS1307 AT24C32 RTC module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy DS1307 AT24C32 RTC module at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
DS1307 AT24C32 RTC Module - Real-Time Clock with EEPROM for Arduino & Microcontrollers
Keep your projects perfectly on time with the DS1307 AT24C32 RTC Module from The Engineer Store, Bengaluru. This compact, reliable real-time clock module combines the DS1307 RTC chip with an AT24C32 32Kbit EEPROM, giving you accurate timekeeping and onboard non-volatile data storage over the I2C interface. Ideal for data loggers, alarm systems, attendance trackers, and any application requiring persistent date/time tracking - even during power outages thanks to its CR2032 battery backup. Fast shipping across India with expert technical support included.
Specifications
| RTC Chip | DS1307 (I2C Real-Time Clock) |
| EEPROM | AT24C32 - 32Kbit (4KB) Non-Volatile Memory |
| Communication | I2C (TWI) Interface - SDA & SCL |
| Operating Voltage | 3.3V - 5V DC |
| Timekeeping | Seconds, Minutes, Hours, Day, Date, Month, Year (with leap-year compensation up to 2100) |
| Clock Format | 12-hour (AM/PM) or 24-hour selectable |
| Battery Backup | CR2032 coin cell socket (battery may or may not be included) |
| Oscillator | 32.768 kHz crystal (onboard) |
| Square Wave Output | Programmable - 1Hz, 4.096kHz, 8.192kHz, or 32.768kHz |
| I2C Address (RTC) | 0x68 (fixed) |
| I2C Address (EEPROM) | 0x50 - 0x57 (configurable via A0, A1, A2 pads) |
| Board Dimensions | Approx. 28mm x 27mm x 8.4mm |
| Mounting | 4 mounting holes for secure installation |
| Pin Header | SDA, SCL, VCC, GND, SQ (square wave output), DS (optional DS18B20 temperature sensor header) |
| Compatibility | Arduino, ESP8266, ESP32, Raspberry Pi, STM32, PIC, and all I2C-capable microcontrollers |
| Type | Clock / Timing Module |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Accurate Timekeeping: DS1307 maintains seconds, minutes, hours, day, date, month, and year with automatic leap-year correction through 2100.
- Battery Backup: CR2032 coin cell keeps the clock running for years even when main power is disconnected - no time resets on power cycles.
- 32Kbit EEPROM Onboard: AT24C32 provides 4KB of non-volatile storage for logging data, storing calibration values, or saving configuration settings.
- Simple I2C Interface: Only two data lines (SDA & SCL) needed - easily connect multiple I2C devices on the same bus.
- Wide Voltage Compatibility: Works seamlessly with both 3.3V and 5V logic-level microcontrollers.
- Programmable Square Wave Output: Generate precise clock signals at 1Hz, 4.096kHz, 8.192kHz, or 32.768kHz for timing applications.
- Optional Temperature Sensor Header: Dedicated DS pin for adding a DS18B20 temperature sensor directly on the module.
- Compact & Mountable: Small form factor with four mounting holes for easy integration into enclosures and project boards.
- Extensive Library Support: Compatible with popular Arduino libraries like RTClib, DS1307RTC, and Wire - get running in minutes.
Why Choose This RTC Module?
- 100% authentic DS1307 and AT24C32 ICs sourced from trusted suppliers
- Dual functionality - real-time clock plus EEPROM storage on a single compact board
- Plug-and-play with Arduino IDE using widely available libraries and example code
- 1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse to most locations across India
- Expert technical support to help you with wiring, code, and troubleshooting
Wiring Guide (Arduino UNO)
| Module Pin | Arduino UNO Pin |
| VCC | 5V |
| GND | GND |
| SDA | A |
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy DS1307 AT24C32 RTC module Online in India
Purchase the DS1307 AT24C32 RTC module online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on DS1307 AT24C32 RTC module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy DS1307 AT24C32 RTC module at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.