{"product_id":"grove-ds1307-rtc-real-time-clock","title":"Grove - DS1307 RTC (Real-Time Clock)","description":"\u003cdiv data-page-id=\"OF8fdIhkLowYQExTxGBl8nWRgfh\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-FAaEd7OKUoe37qxNCHTlRL8agfb\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-WooBdW86QogsJtx9Cb5l9o2cg4b\"\u003eThe \u003cstrong\u003eGrove - DS1307 RTC\u003c\/strong\u003e is based on the clock chip DS1307 and supports I2C communication! It uses a Lithium cell battery (CR1225). We choose to use the RTC based on DS1307 as it is low cost and also very energy efficient. It can run for years on a very small coin cell. The clock\/calendar provides seconds, minutes, hours, day, date, month, and year. The end-of-the-month date is automatically adjusted for months with fewer than 31 days, including corrections for leap years. The clock operates in either the 24-hour or 12-hour format with an AM\/PM indicator. And it is valid up to 2100. In order to gain robust performance, you must put a 3-Volt CR1225 lithium cell in the battery-holder. The DS1307 has a built-in power sense circuit that detects power failures and automatically switches to the battery supply. If you use primary power only, the module may not work normally, because the crystal may not oscillate.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-WooBdW86QogsJtx9Cb5l9o2cg4b\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-Nc6gddNJCo4VgCxGevYltREogof\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-TTlKdGHqDoTqRxx6WDilkFDrgjD\"\u003e\n\u003cstrong\u003eComplete Functionality:\u003c\/strong\u003e Real-time clock (RTC) counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap-year compensation valid up to 2100.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-GEZUdLGkAoBgg9xIhgMlASLPg1f\"\u003e\n\u003cstrong\u003ePower Detection:\u003c\/strong\u003e Automatic power-fail detection and switch circuitry.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-FnExdoW6roDCL2xmwxGlnfK4gwf\"\u003e\n\u003cstrong\u003eLongevity: \u003c\/strong\u003eConsumes less than 500nA in battery backup mode with oscillator running.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-Ol2Qdh1o5ow2zyxs8AWlgSAZglp\"\u003e\n\u003cstrong\u003eGrove Unified Socket:\u003c\/strong\u003e The product ensures \"Plug and Play\" and could be versatile for various applications.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-Ol2Qdh1o5ow2zyxs8AWlgSAZglp\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-AImId96I3o6Dh4xIvdyl8mEWgyf\"\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-EBsmdggFvoadxAx4BNqlmYw8gxf\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e G.W. 10g\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-SJfddNgEyoUjWMx9SIAlhaICgDc\"\u003e\n\u003cstrong\u003ePCB Size:\u003c\/strong\u003e 2.0cm x 4.0cm\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-TtQcddboloYQT9xwKWzlqupogVc\"\u003e\n\u003cstrong\u003eIO Structure: \u003c\/strong\u003eSCL, SDA, VCC, GND\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-Ukhrd2D0po7QgMxhzZvlOouagfc\"\u003e\n\u003cstrong\u003eROHS:\u003c\/strong\u003e YES\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-WhHodHnAaoWVZVxYDHAleMwEgge\"\u003e\n\u003cstrong\u003eVCC: \u003c\/strong\u003e3.3~5.5V\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-TiiUdi07couSjTxk05Ql9r5vgye\"\u003e\n\u003cstrong\u003eLogic High Level Input: \u003c\/strong\u003e2.2 ~ VCC + 0.3 V\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-NBOVd4u5toFXpTxvjFLlFZ5Dgsd\"\u003e\n\u003cstrong\u003eLogic Low Level Input: \u003c\/strong\u003e-0.3 ~ + 0.8 V\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-TdpJdBVSpoDsX1xYMlmlDltRgRg\"\u003e\n\u003cstrong\u003eBattery Voltage:\u003c\/strong\u003e 2.0 ~ 3.5 V\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-TdpJdBVSpoDsX1xYMlmlDltRgRg\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-AuFldY3i6ogZ0qxyRTBlBtOigob\"\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-LZRcdmFztoKi7SxXB0zlQsrhgtg\"\u003e\n\u003cul\u003e\n\u003cli\u003eReal Time Clock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-LZRcdmFztoKi7SxXB0zlQsrhgtg\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-T0JFdurwko7KYtxuwdrlC5Zfgpg\"\u003e\u003cstrong\u003eDocuments:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-EgJmdpuvToGKDIxWh48lJGYBgef\"\u003e\u003ca data-lark-is-custom=\"true\" href=\"https:\/\/raw.githubusercontent.com\/SeeedDocument\/Grove-RTC\/master\/res\/Real_Time_Clock.zip\"\u003eGrove-RTC in Eagle format\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-AtpOdiltvoBJ4MxwcCulR0wzgvd\"\u003e\u003ca data-lark-is-custom=\"true\" href=\"https:\/\/github.com\/SeeedDocument\/Grove-RTC\/raw\/master\/res\/Grove%20-%20RTC%20v1.1%20Sch.pdf\"\u003eGrove-RTC Schematic in PDF format\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-E58RdrH4NoENvtxR2LHlUXcbg6b\"\u003e\u003ca data-lark-is-custom=\"true\" href=\"https:\/\/github.com\/SeeedDocument\/Grove-RTC\/raw\/master\/res\/Grove%20-%20RTC%20v1.1%20PCB.pdf\"\u003eGrove-RTC PCB in PDF format\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-LBbNd6N0doviYnxGqfFl8Ovugdg\"\u003e\u003ca data-lark-is-custom=\"true\" href=\"https:\/\/github.com\/Seeed-Studio\/RTC_DS1307\/archive\/master.zip\"\u003eGithub repository for RTC\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-KCiLdexqAoUtkTxCNCZluDWegfb\"\u003e\u003ca data-lark-is-custom=\"true\" href=\"https:\/\/raw.githubusercontent.com\/SeeedDocument\/Grove-RTC\/master\/res\/DS1307.pdf\"\u003eDS1307 Datasheet\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-KCiLdexqAoUtkTxCNCZluDWegfb\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"heading-2 ace-line old-record-id-KcB4djCssoGcIRxOHVYlVUkDgcN\"\u003e\u003cstrong\u003ePart List:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-WhXkdPjZloHbLsxi1dmliSXCggg\"\u003e1x Grove - RTC\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-FK6tdl49Ao8S8ExDX82l3FcngUc\"\u003e1x Grove - Cable\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-FK6tdl49Ao8S8ExDX82l3FcngUc\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-Q9CHdP4axozt1SxV55MlLllzgig\"\u003e\n\u003cstrong\u003eNote: \u003c\/strong\u003eThe battery is not included. Please purchase CR1225 batteries to use.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Grove","offers":[{"title":"Default Title","offer_id":43968400654527,"sku":"MLE01093","price":459.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0531\/3419\/6927\/files\/MLE01093.jpg?v=1749261035","url":"https:\/\/makerlab.ph\/products\/grove-ds1307-rtc-real-time-clock","provider":"Makerlab PH","version":"1.0","type":"link"}