{"product_id":"gravity-i2c-ds1307-rtc-module","title":"Gravity: I2C DS1307 RTC Module","description":"\u003cp\u003eThe upgraded Gravity I2C DS1307 RTC module is a compact and cost-effective Real Time Clock suitable for applications like time clocks and data loggers. This newer version is smaller and includes a high-precision crystal oscillator that significantly reduces time errors to about 1 second in 24 hours. The module is powered by a single-cell CR1220 battery, expected to last 3 to 5 years, and maintains a 4KB EEPROM for recording alarm and event information. Users can adjust the I2C address easily. With its Gravity I2C interface, the module connects seamlessly to the DFRobot Gravity IO expansion shield. It's compatible with the Arduino DS1307 library from DFRobot, facilitating straightforward time-setting and display functions, making it a practical choice for Data Acquisition (DA) applications.\u003c\/p\u003e\n\u003cp\u003eNote: The CR1220 cell battery does \u003cstrong\u003eNOT\u003c\/strong\u003e come with the module, but you can buy one here\u003c\/p\u003e\n\u003ch2\u003eConnection Diagram - DFRduino UNO R3\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/3274\/files\/Gravity_I2C_DS1307_RTC_Module_features_1_feda77a1-8345-4bdc-920b-9635471a0038.jpg?v=1710842169\u0026amp;width=700\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating voltage: 5V\u003c\/li\u003e\n\u003cli\u003eInterface: I2C (Gravity PH2.0-4P Interface \u0026amp; XH2.54 Pins)\u003c\/li\u003e\n\u003cli\u003eIC Output Data: Hour, Minutes, Seconds, Week, Day, Month, Year\u003c\/li\u003e\n\u003cli\u003eLeap-year Compensation\u003c\/li\u003e\n\u003cli\u003eAccurate calendar up to the year 2100\u003c\/li\u003e\n\u003cli\u003e1Hz Output Pin\u003c\/li\u003e\n\u003cli\u003e56 Bytes of Non-volatile memory available\u003c\/li\u003e\n\u003cli\u003e4KB ROM of EEPROM\u003c\/li\u003e\n\u003cli\u003eSize: 0.81\" x 1.06\" (22mm x 27mm)\u003c\/li\u003e\n\u003cli\u003eWeight: 6g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\nProduct wiki\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSchematic \u0026amp; Layout\u003c\/li\u003e\n\u003cli\u003eDFRobot DS1307 RTC Library\u003c\/li\u003e\n\u003cli\u003eDFRobot DS1307 RTC Repository\u003c\/li\u003e\n\u003cli\u003eTime Synchronization with Computer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePinout\u003c\/h3\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/3274\/files\/Gravity_I2C_DS1307_RTC_Module_contents_06e1009e-7188-4d40-8537-3453279e32c6.jpg?v=1710842297\u0026amp;width=700\"\u003e\u003c\/p\u003e\n\u003ctable width=\"284\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"104\"\u003eNum\u003c\/td\u003e\n\u003ctd width=\"74\"\u003eLabel\u003c\/td\u003e\n\u003ctd width=\"106\"\u003eDescription\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eVCC\u003c\/td\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eSCL\u003c\/td\u003e\n\u003ctd\u003eI2C-Clock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eSDA\u003c\/td\u003e\n\u003ctd\u003eI2C-Data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003eSQ\u003c\/td\u003e\n\u003ctd\u003eSQ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003eVCC\u003c\/td\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003eSCL\u003c\/td\u003e\n\u003ctd\u003eI2C-Clock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003eSDA\u003c\/td\u003e\n\u003ctd\u003eI2C-SDA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x Gravity: I2C DS1307 RTC Module\u003c\/li\u003e\n\u003cli\u003e1x Gravity-4Pin I2C\/UART Cable\u003c\/li\u003e\n\u003cli\u003e1x XH2.54-5P Pin Headerfcv \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":48623710142682,"sku":"zis1789676520045","price":3.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0824\/8318\/3834\/files\/gravity-i2c-ds1307-rtc-module_1.jpg?v=1789676525","url":"https:\/\/memoryfoamwear.shop\/products\/gravity-i2c-ds1307-rtc-module","provider":"My Store","version":"1.0","type":"link"}