{"title":"RTC Modules","description":"","products":[{"product_id":"ds3231-rtc-module-no-battery","title":"DS3231 RTC Module (No Battery)","description":"\u003ch3 data-section-id=\"1key0v2\" data-start=\"0\" data-end=\"56\"\u003eDS3231 RTC Module (No Battery) – Product Description\u003c\/h3\u003e\n\u003cp data-start=\"58\" data-end=\"491\"\u003eThe \u003cstrong data-start=\"62\" data-end=\"101\"\u003eDS3231 RTC (Real Time Clock) Module\u003c\/strong\u003e is a highly accurate timekeeping module designed for microcontroller and embedded system projects. Powered by the DS3231 RTC IC, it maintains precise time and date information with integrated temperature-compensated crystal oscillator (TCXO) technology. This version is supplied \u003cstrong data-start=\"381\" data-end=\"409\"\u003ewithout a backup battery\u003c\/strong\u003e, allowing users to install their preferred CR2032 battery separately if required.\u003c\/p\u003e\n\u003cp data-start=\"493\" data-end=\"790\"\u003eThe module communicates via the \u003cstrong data-start=\"525\" data-end=\"542\"\u003eI2C interface\u003c\/strong\u003e, making it compatible with popular development boards such as Arduino, ESP8266, ESP32, Raspberry Pi, STM32, and other microcontrollers. It can track seconds, minutes, hours, day, date, month, and year information, including leap-year compensation.\u003c\/p\u003e\n\u003ch4 data-start=\"792\" data-end=\"805\"\u003eFeatures\u003c\/h4\u003e\n\u003cul data-start=\"806\" data-end=\"1137\"\u003e\n\u003cli data-section-id=\"1nphloe\" data-start=\"806\" data-end=\"838\"\u003eHigh-precision DS3231 RTC chip\u003c\/li\u003e\n\u003cli data-section-id=\"ydqys5\" data-start=\"839\" data-end=\"868\"\u003eI2C communication interface\u003c\/li\u003e\n\u003cli data-section-id=\"mtbva5\" data-start=\"869\" data-end=\"902\"\u003eTracks time and date accurately\u003c\/li\u003e\n\u003cli data-section-id=\"7j1lph\" data-start=\"903\" data-end=\"963\"\u003eBuilt-in temperature-compensated crystal oscillator (TCXO)\u003c\/li\u003e\n\u003cli data-section-id=\"ztlwe3\" data-start=\"964\" data-end=\"998\"\u003eAutomatic leap-year compensation\u003c\/li\u003e\n\u003cli data-section-id=\"1c7omh1\" data-start=\"999\" data-end=\"1046\"\u003eBattery backup support (battery not included)\u003c\/li\u003e\n\u003cli data-section-id=\"jhmxae\" data-start=\"1047\" data-end=\"1070\"\u003eLow power consumption\u003c\/li\u003e\n\u003cli data-section-id=\"vb5rzu\" data-start=\"1071\" data-end=\"1137\"\u003eCompatible with Arduino, ESP32, ESP8266, Raspberry Pi, and STM32\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"1139\" data-end=\"1158\"\u003eSpecifications\u003c\/h4\u003e\n\u003cul data-start=\"1159\" data-end=\"1393\"\u003e\n\u003cli data-section-id=\"12zvc55\" data-start=\"1159\" data-end=\"1194\"\u003eOperating Voltage: 3.3V – 5.5V DC\u003c\/li\u003e\n\u003cli data-section-id=\"18r1xah\" data-start=\"1195\" data-end=\"1211\"\u003eRTC IC: DS3231\u003c\/li\u003e\n\u003cli data-section-id=\"xn3kjg\" data-start=\"1212\" data-end=\"1241\"\u003eCommunication Protocol: I2C\u003c\/li\u003e\n\u003cli data-section-id=\"p1vtji\" data-start=\"1242\" data-end=\"1274\"\u003eTime Format: 12-hour \/ 24-hour\u003c\/li\u003e\n\u003cli data-section-id=\"1n5cxno\" data-start=\"1275\" data-end=\"1308\"\u003eAccuracy: ±2 ppm (0°C to +40°C)\u003c\/li\u003e\n\u003cli data-section-id=\"19m6f13\" data-start=\"1309\" data-end=\"1353\"\u003eBackup Battery Type: CR2032 (Not Included)\u003c\/li\u003e\n\u003cli data-section-id=\"1iu35dj\" data-start=\"1354\" data-end=\"1393\"\u003eOperating Temperature: -40°C to +85°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"1395\" data-end=\"1412\"\u003eApplications\u003c\/h4\u003e\n\u003cul data-start=\"1413\" data-end=\"1599\"\u003e\n\u003cli data-section-id=\"1d38wsj\" data-start=\"1413\" data-end=\"1443\"\u003eDigital clocks and calendars\u003c\/li\u003e\n\u003cli data-section-id=\"qx82rx\" data-start=\"1444\" data-end=\"1466\"\u003eData logging systems\u003c\/li\u003e\n\u003cli data-section-id=\"1o54sn2\" data-start=\"1467\" data-end=\"1493\"\u003eHome automation projects\u003c\/li\u003e\n\u003cli data-section-id=\"1bap5n5\" data-start=\"1494\" data-end=\"1507\"\u003eIoT devices\u003c\/li\u003e\n\u003cli data-section-id=\"bpu3s6\" data-start=\"1508\" data-end=\"1538\"\u003eAlarm and scheduling systems\u003c\/li\u003e\n\u003cli data-section-id=\"t8kqaq\" data-start=\"1539\" data-end=\"1567\"\u003eTime-stamping applications\u003c\/li\u003e\n\u003cli data-section-id=\"14rd4r9\" data-start=\"1568\" data-end=\"1599\"\u003eIndustrial monitoring systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"1601\" data-end=\"1622\"\u003ePackage Includes\u003c\/h4\u003e\n\u003cul data-start=\"1623\" data-end=\"1659\"\u003e\n\u003cli data-section-id=\"1amhs7c\" data-start=\"1623\" data-end=\"1659\"\u003e1 × DS3231 RTC Module (No Battery)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IRNDS","offers":[{"title":"Default Title","offer_id":49523927482506,"sku":null,"price":125.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0751\/6871\/0794\/files\/31vYJtxMD1L.jpg?v=1781067687"},{"product_id":"ds1302-rtc-module-with-battery","title":"DS1302 RTC Module with Battery","description":"\u003ch3 data-section-id=\"1rdu3zz\" data-start=\"0\" data-end=\"56\"\u003eDS1302 RTC Module with Battery – Product Description\u003c\/h3\u003e\n\u003cp data-start=\"58\" data-end=\"423\"\u003eThe \u003cstrong data-start=\"62\" data-end=\"114\"\u003eDS1302 RTC (Real-Time Clock) Module with Battery\u003c\/strong\u003e is a low-power timekeeping module designed to keep accurate track of time and date even when the main power supply is disconnected. Equipped with a backup battery holder, the DS1302 ensures continuous operation, making it ideal for clocks, data loggers, automation systems, and embedded electronics projects.\u003c\/p\u003e\n\u003cp data-start=\"425\" data-end=\"701\"\u003eThis module communicates with microcontrollers such as Arduino, ESP8266, ESP32, Raspberry Pi, and other development boards through a simple serial interface. It stores seconds, minutes, hours, day, date, month, and year information, including automatic leap-year compensation.\u003c\/p\u003e\n\u003ch3 data-section-id=\"19zqy0x\" data-start=\"703\" data-end=\"715\"\u003eFeatures\u003c\/h3\u003e\n\u003cul data-start=\"716\" data-end=\"1088\"\u003e\n\u003cli data-section-id=\"1yrm75i\" data-start=\"716\" data-end=\"756\"\u003eBased on the DS1302 Real-Time Clock IC\u003c\/li\u003e\n\u003cli data-section-id=\"12wwgya\" data-start=\"757\" data-end=\"803\"\u003eMaintains accurate time and date information\u003c\/li\u003e\n\u003cli data-section-id=\"bst1ak\" data-start=\"804\" data-end=\"858\"\u003eBackup battery support for uninterrupted timekeeping\u003c\/li\u003e\n\u003cli data-section-id=\"jhmxae\" data-start=\"859\" data-end=\"882\"\u003eLow power consumption\u003c\/li\u003e\n\u003cli data-section-id=\"60qi7v\" data-start=\"883\" data-end=\"924\"\u003eSerial communication interface (3-wire)\u003c\/li\u003e\n\u003cli data-section-id=\"16i901u\" data-start=\"925\" data-end=\"972\"\u003eAutomatic calendar and leap-year compensation\u003c\/li\u003e\n\u003cli data-section-id=\"tpf1t0\" data-start=\"973\" data-end=\"1052\"\u003eCompatible with Arduino, ESP32, ESP8266, AVR, PIC, and other microcontrollers\u003c\/li\u003e\n\u003cli data-section-id=\"7u2z0x\" data-start=\"1053\" data-end=\"1088\"\u003eEasy-to-use compact module design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1yl5694\" data-start=\"1090\" data-end=\"1108\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul data-start=\"1109\" data-end=\"1410\"\u003e\n\u003cli data-section-id=\"10dwndo\" data-start=\"1109\" data-end=\"1141\"\u003eOperating Voltage: 2.0V – 5.5V\u003c\/li\u003e\n\u003cli data-section-id=\"18r3b1m\" data-start=\"1142\" data-end=\"1158\"\u003eRTC IC: DS1302\u003c\/li\u003e\n\u003cli data-section-id=\"1gkke0w\" data-start=\"1159\" data-end=\"1199\"\u003eCommunication: 3-Wire Serial Interface\u003c\/li\u003e\n\u003cli data-section-id=\"1z0vdek\" data-start=\"1200\" data-end=\"1233\"\u003eTime Format: 12-hour or 24-hour\u003c\/li\u003e\n\u003cli data-section-id=\"mjgsly\" data-start=\"1234\" data-end=\"1296\"\u003eCalendar Range: Year, Month, Date, Day, Hour, Minute, Second\u003c\/li\u003e\n\u003cli data-section-id=\"1uolojw\" data-start=\"1297\" data-end=\"1365\"\u003eBackup Battery: CR2032 (included or optional depending on package)\u003c\/li\u003e\n\u003cli data-section-id=\"10v228z\" data-start=\"1366\" data-end=\"1389\"\u003eLow-Power Backup Mode\u003c\/li\u003e\n\u003cli data-section-id=\"13ri2kk\" data-start=\"1390\" data-end=\"1410\"\u003eCompact PCB Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wggvqn\" data-start=\"1412\" data-end=\"1428\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"1429\" data-end=\"1599\"\u003e\n\u003cli data-section-id=\"nvxsh5\" data-start=\"1429\" data-end=\"1445\"\u003eDigital Clocks\u003c\/li\u003e\n\u003cli data-section-id=\"4nw9ql\" data-start=\"1446\" data-end=\"1461\"\u003eAlarm Systems\u003c\/li\u003e\n\u003cli data-section-id=\"1uzava5\" data-start=\"1462\" data-end=\"1485\"\u003eData Logging Projects\u003c\/li\u003e\n\u003cli data-section-id=\"l5q5vc\" data-start=\"1486\" data-end=\"1503\"\u003eHome Automation\u003c\/li\u003e\n\u003cli data-section-id=\"t6xcwp\" data-start=\"1504\" data-end=\"1524\"\u003eAttendance Systems\u003c\/li\u003e\n\u003cli data-section-id=\"1fkkbdd\" data-start=\"1525\" data-end=\"1556\"\u003eEmbedded Electronics Projects\u003c\/li\u003e\n\u003cli data-section-id=\"17puhv4\" data-start=\"1557\" data-end=\"1585\"\u003eTime-Based Control Systems\u003c\/li\u003e\n\u003cli data-section-id=\"1cbstdd\" data-start=\"1586\" data-end=\"1599\"\u003eIoT Devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"5t7ttf\" data-start=\"1601\" data-end=\"1621\"\u003ePackage Includes\u003c\/h3\u003e\n\u003cul data-start=\"1622\" data-end=\"1693\"\u003e\n\u003cli data-section-id=\"1vpp4yu\" data-start=\"1622\" data-end=\"1645\"\u003e1 × DS1302 RTC Module\u003c\/li\u003e\n\u003cli data-section-id=\"1taw0wi\" data-start=\"1646\" data-end=\"1693\"\u003e1 × Backup Battery \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IRNDS","offers":[{"title":"Default Title","offer_id":49523985973386,"sku":null,"price":83.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0751\/6871\/0794\/files\/Capture1_c64c287a-fb21-4e36-8260-a3221fe125f4.png?v=1781069316"}],"url":"https:\/\/irnds.com\/collections\/rtc-modules.oembed","provider":"IRNDS","version":"1.0","type":"link"}