{"product_id":"ds3231-rtc-module-precise-real-time-clock-i2c-with-at24c02","title":"DS3231 RTC Module Precise Real Time Clock I2C with AT24C02 EEPROM","description":"\u003ch2\u003eDS3231 RTC Module — Precise Real Time Clock with I2C \u0026amp; AT24C02 EEPROM\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eDS3231 RTC Module\u003c\/strong\u003e is a high-precision, low-cost real-time clock module widely used in Arduino, ESP32, NodeMCU, and Raspberry Pi projects. It features the \u003cstrong\u003eDS3231 temperature-compensated crystal oscillator (TCXO)\u003c\/strong\u003e for exceptional timekeeping accuracy, an integrated \u003cstrong\u003eAT24C02 EEPROM\u003c\/strong\u003e for non-volatile data storage, and a \u003cstrong\u003eCR2032 battery backup\u003c\/strong\u003e to maintain time even when the main power is off.\u003c\/p\u003e\u003cp\u003eWhether you’re building a digital clock, data logger, alarm system, or scheduled automation project, the DS3231 is the most reliable RTC module available for hobbyists and engineers in India.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e⏱️ \u003cstrong\u003eHigh Accuracy:\u003c\/strong\u003e ±2ppm from 0°C to +40°C — less than 1 minute drift per year\u003c\/li\u003e\n\u003cli\u003e🔋 \u003cstrong\u003eBattery Backup:\u003c\/strong\u003e CR2032 coin cell keeps time running when power is off\u003c\/li\u003e\n\u003cli\u003e💾 \u003cstrong\u003eAT24C02 EEPROM:\u003c\/strong\u003e 256 bytes of non-volatile memory for storing settings or data\u003c\/li\u003e\n\u003cli\u003e📶 \u003cstrong\u003eI2C Interface:\u003c\/strong\u003e Simple 2-wire communication (SDA + SCL) — easy to use with any microcontroller\u003c\/li\u003e\n\u003cli\u003e🌡️ \u003cstrong\u003eBuilt-in Temperature Sensor:\u003c\/strong\u003e ±3°C accuracy — readable via I2C\u003c\/li\u003e\n\u003cli\u003e📅 \u003cstrong\u003eFull Date \u0026amp; Time:\u003c\/strong\u003e Seconds, minutes, hours, day, date, month, year with leap year compensation up to 2100\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRTC IC:\u003c\/strong\u003e DS3231SN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEEPROM:\u003c\/strong\u003e AT24C02 — 256 bytes, I2C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e I2C (address 0x68 for RTC, 0x57 for EEPROM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 3.3V – 5.5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e ±2ppm (0°C to +40°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e CR2032 (not included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Sensor:\u003c\/strong\u003e ±3°C accuracy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePins:\u003c\/strong\u003e VCC, GND, SDA, SCL, SQW, 32K\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArduino UNO, Nano, Mega, Pro Mini\u003c\/li\u003e\n\u003cli\u003eESP32, ESP8266, NodeMCU\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi (3.3V I2C)\u003c\/li\u003e\n\u003cli\u003eSTM32 and other I2C-capable microcontrollers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUse Cases\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDigital clock and calendar display\u003c\/li\u003e\n\u003cli\u003eData logger with timestamped sensor readings\u003c\/li\u003e\n\u003cli\u003eAlarm clock and scheduled relay control\u003c\/li\u003e\n\u003cli\u003eAttendance and access control systems\u003c\/li\u003e\n\u003cli\u003eIoT devices requiring accurate time synchronisation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOrder now from Xsortex HUB\u003c\/strong\u003e and get fast delivery across India. Compatible with the popular \u003ccode\u003eRTClib\u003c\/code\u003e Arduino library — get started in minutes.\u003c\/p\u003e","brand":"Xsortex HUB","offers":[{"title":"Default Title","offer_id":52655798190212,"sku":"RTC-0001","price":249.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0996\/6472\/4100\/files\/rn-image_picker_lib_temp_f4632bdd-417d-4925-b627-4825826eb6a0.png?v=1786977150","url":"https:\/\/www.xsortexhub.com\/products\/ds3231-rtc-module-precise-real-time-clock-i2c-with-at24c02","provider":"Xsortex HUB","version":"1.0","type":"link"}