{"product_id":"ds3231-rtc-module-at24c32-iic-precision-clock-memory","title":"DS3231 RTC Module AT24C32 IIC Precision Clock \u0026 Memory","description":"\u003ch2\u003eDS3231 Precision Real-Time Clock Module with AT24C32 IIC Memory\u003c\/h2\u003e\n\u003cp\u003eKeep your Arduino, Raspberry Pi, or microcontroller projects perfectly on schedule with this \u003cstrong\u003eDS3231 RTC (Real-Time Clock) Module\u003c\/strong\u003e. Featuring the industry-trusted DS3231 chip paired with AT24C32 EEPROM memory over an IIC (I²C) interface, this compact SMD module delivers exceptional timekeeping accuracy — even during power interruptions. Available with or without a backup CR2032 battery to suit your exact project needs.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Precision Timekeeping:\u003c\/strong\u003e The DS3231 chip uses a temperature-compensated crystal oscillator (TCXO) for extremely accurate time tracking across varying temperatures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAT24C32 EEPROM Memory:\u003c\/strong\u003e 32K bits of non-volatile memory for storing data that persists through power cycles — ideal for logging and configuration storage.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIIC \/ I²C Interface:\u003c\/strong\u003e Simple two-wire communication makes integration with Arduino, Raspberry Pi, ESP8266\/ESP32, and other microcontrollers effortless.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery Backup Support:\u003c\/strong\u003e Optional onboard CR2032 coin cell battery holder keeps the clock running even when main power is disconnected.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact SMD Package:\u003c\/strong\u003e Small form factor fits neatly into tight enclosures and breadboard setups.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo Variants Available:\u003c\/strong\u003e Choose the version with a pre-installed battery or the module only — perfect for sourcing exactly what your project requires.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Works seamlessly with popular platforms including Arduino UNO, Nano, Mega, Raspberry Pi, STM32, and more.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip:\u003c\/strong\u003e DS3231 + AT24C32\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e IIC \/ I²C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMemory:\u003c\/strong\u003e 32K-bit EEPROM (AT24C32)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e SMD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 Module\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × DS3231 AT24C32 IIC RTC Module (with or without battery, as selected)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGreat for Projects Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino \u0026amp; Raspberry Pi clocks and timers\u003c\/li\u003e\n  \u003cli\u003eData loggers with timestamping\u003c\/li\u003e\n  \u003cli\u003eAutomated scheduling systems\u003c\/li\u003e\n  \u003cli\u003eIoT sensor nodes requiring accurate time references\u003c\/li\u003e\n  \u003cli\u003eEEPROM data storage experiments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLooking for other maker tools and electronics accessories? Check out our \u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e or the \u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge – DIY Tool\u003c\/a\u003e for your workshop needs.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between the DS3231 module with battery and without battery?\u003c\/h4\u003e\n\u003cp\u003eA: The version with a battery includes a pre-installed CR2032 coin cell that keeps the DS3231 real-time clock running even when the main power supply is disconnected. The version without a battery is the bare module — ideal if you already have a battery on hand or plan to power the RTC continuously from your main circuit.\u003c\/p\u003e\n\u003ch4\u003eQ: Is the DS3231 AT24C32 IIC module compatible with Arduino and Raspberry Pi?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The DS3231 module uses a standard I²C (IIC) two-wire interface, making it fully compatible with Arduino UNO, Nano, Mega, Raspberry Pi (all models), ESP8266, ESP32, STM32, and virtually any microcontroller that supports I²C communication. Numerous open-source libraries are available for quick integration.\u003c\/p\u003e\n\u003ch4\u003eQ: What can I store in the AT24C32 EEPROM memory on this module?\u003c\/h4\u003e\n\u003cp\u003eA: The AT24C32 provides 32K bits (4KB) of non-volatile EEPROM storage, also accessible over the I²C bus. You can use it to save configuration settings, calibration data, event logs, or any small dataset that needs to persist after power is removed from your project.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between the DS3231 module with battery and without battery?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The version with a battery includes a pre-installed CR2032 coin cell that keeps the DS3231 real-time clock running even when the main power supply is disconnected. The version without a battery is the bare module — ideal if you already have a battery on hand or plan to power the RTC continuously from your main circuit.\"}}, {\"@type\": \"Question\", \"name\": \"Is the DS3231 AT24C32 IIC module compatible with Arduino and Raspberry Pi?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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You can use it to save configuration settings, calibration data, event logs, or any small dataset that needs to persist after power is removed from your project.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"DS3231 RTC Module AT24C32 IIC Precision Clock \u0026 Memory\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/ds3231-rtc-module-at24c32-iic-precision-clock-memory\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"Default Title","offer_id":44166541606999,"sku":"\u003cnone\u003e","price":13.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/S92cec3ac2f974c1b8608b4011945eb0ah_392d482e-397f-457b-ac3b-966549698d04.webp?v=1786740143","url":"https:\/\/axlcustomersupport.com\/products\/ds3231-rtc-module-at24c32-iic-precision-clock-memory","provider":"Axl","version":"1.0","type":"link"}