--- product_id: 419364000 title: "10Pcs Tiny RTC I2C DS1307 AT24C32 Real Time Clock Module for AVR ARM PIC SMD" brand: "aitiao" price: "€ 26.72" currency: EUR in_stock: true reviews_count: 1 category: "Aitiao" url: https://www.desertcart.pt/products/419364000-10pcs-tiny-rtc-i2c-ds1307-at24c32-real-time-clock-module store_origin: PT region: Portugal --- # DS1307 RTC chip precision 32KB I2C EEPROM memory Seamless I2C two-wire interface 10Pcs Tiny RTC I2C DS1307 AT24C32 Real Time Clock Module for AVR ARM PIC SMD **Brand:** aitiao **Price:** € 26.72 **Availability:** ✅ In Stock ## Summary > ⏳ Never miss a beat with precision timing on your side! ## Quick Answers - **What is this?** 10Pcs Tiny RTC I2C DS1307 AT24C32 Real Time Clock Module for AVR ARM PIC SMD by aitiao - **How much does it cost?** € 26.72 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/419364000-10pcs-tiny-rtc-i2c-ds1307-at24c32-real-time-clock-module) ## Best For - aitiao enthusiasts ## Why This Product - Trusted aitiao brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ample Non-Volatile Memory:** 32KB EEPROM offers reliable data storage that retains info even during power loss. - • **Compact & Lightweight Design:** At just 28x26x8mm and 7g, these modules fit effortlessly into any embedded system. - • **Plug & Play I2C Connectivity:** Two-wire I2C interface guarantees easy integration and cascading with other devices. - • **Bulk Pack for Pro-Level Projects:** 10 modules per pack empower you to scale your IoT or embedded solutions without delay. - • **Precision Timekeeping, Always On:** DS1307 RTC chip ensures accurate real-time clock functionality for your microcontroller projects. ## Overview This 10-pack of DS1307 I2C Real Time Clock modules features a highly accurate RTC chip paired with 32KB of non-volatile EEPROM memory. Designed for seamless integration via a two-wire I2C interface, these compact modules are perfect for AVR, ARM, PIC, Arduino, and Raspberry Pi projects requiring reliable timekeeping and data retention. Ideal for professionals scaling embedded systems, each module is lightweight and ready to cascade with other I2C devices (battery not included). ## Description Features: 1. Two wire I2C interface. 2. Hour:Minutes : Seconds AM/PM.3. Day Month, Date - Year. 4. DS1307 based RTC.5. 1Hz output pin. 6. 56 Bytes of Non-volatile memory available to user. 7. The DS1307 is accessed via the I2C protocol. Specifications:Item size: 28*26*8mmNet weight: 7gPackage Includes: 10* DS1307 I2C Real Time Clock Module (without battery) Review: Ground pins not connected - boards require modifications before they will work - The ground pins at both of the headers are completely isolated. This is a common issue with this type of board. While soldering in pins or wires to connect the module to your circuit, add a wire from the ground pin to the outermost pin of the unused DS18B20, where ground is routed to the large pad under the crystal X1, and to pin 4 of the two ICs. The boards work fine otherwise. ## Features - DS1307 I2C real-time clock chip (RTC) 24C32 32K I2C EEPROM memory - Solve the problem DS1307 with backup battery can not read and write - Fully charged, it can provide the DS1307 timing - Connected to the clock pin of DS1307 to provide clock signal for microcontroller. Can be cascaded to other I2C devices - package includes: 10Pcs DS1307 I2C real time clock module (without battery) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09PYRNCQM | | Best Sellers Rank | #927 in Computer Memory | | Brand | AITIAO | | Built-In Media | Others | | Compatible Devices | Microcontrollers (Arduino, Raspberry Pi models), other I2C devices | | Connectivity Technology | I2C | | Customer Reviews | 4.5 out of 5 stars 4 Reviews | | Included Components | Others | | Item Dimensions L x W x H | 1.1"L x 1.02"W x 0.31"H | | Manufacturer | AITIAO | | Memory Storage Capacity | 0.06 KB | | Model Name | DS1307 | | Number of Items | 10 | | Operating System | Linux | | Processor Brand | AITIAO | | Processor Count | 1 | | UPC | 701715511514 | | Unit Count | 10 Count | | Warranty Description | 1 | ## Product Details - **Brand:** AITIAO - **Connectivity Technology:** I2C - **Included Components:** Others - **Memory Storage Capacity:** 0.06 KB - **Model Name:** DS1307 ## Images ![10Pcs Tiny RTC I2C DS1307 AT24C32 Real Time Clock Module for AVR ARM PIC SMD - Image 1](https://m.media-amazon.com/images/I/81MYPe-IQ0L.jpg) ## Customer Reviews ### ⭐⭐⭐ Ground pins not connected - boards require modifications before they will work *by A***R on September 8, 2023* The ground pins at both of the headers are completely isolated. This is a common issue with this type of board. While soldering in pins or wires to connect the module to your circuit, add a wire from the ground pin to the outermost pin of the unused DS18B20, where ground is routed to the large pad under the crystal X1, and to pin 4 of the two ICs. The boards work fine otherwise. ## Frequently Bought Together - AITIAO 10Pcs Tiny RTC I2C DS1307 AT24C32 Real Time Clock Module for AVR ARM PIC SMD - LiCB CR2032 3V Lithium Battery(10-Pack) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/419364000-10pcs-tiny-rtc-i2c-ds1307-at24c32-real-time-clock-module](https://www.desertcart.pt/products/419364000-10pcs-tiny-rtc-i2c-ds1307-at24c32-real-time-clock-module) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-11-02*