{"title":"DS1307 RTC Module with Battery for Raspberry Pi","handle":"ds1307-rtc-module-with-battery-for-raspberry-pi","url":"/products/ds1307-rtc-module-with-battery-for-raspberry-pi","description":"A real-time clock (RTC) module designed specifically for the Raspberry Pi, built around the Maxim DS1307 chip. It communicates via I2C and includes a CR1220 coin cell battery to maintain accurate timekeeping even when the Pi is powered down. The module plugs directly onto the Raspberry Pi GPIO header.\n\nCompatible with Raspberry Pi Model B, A+, B+, 2 Model B, and 3 Model B.\n\nKey Features\n\n\nDS1307 RTC Chip – Tracks seconds, minutes, hours, date, day, month, and year\n\nBattery Backup – Included CR1220 coin cell maintains time when powered off\n\nI2C Interface – Communicates at address 0x68\n\nDirect GPIO Connection – Plugs onto the Raspberry Pi header (2 × 5 pin, 2.54 mm)\n\nHigh Precision – ±2 ppm accuracy (0–40 °C)\n\n\nSpecifications\n\n\nRTC Chip – DS1307\n\nBattery – CR1220 coin cell (included)\n\nOperating Voltage – 5 V\n\nI2C Address – 0x68\n\nClock Precision – ±2 ppm (0–40 °C)\n\nOperating Temperature – −10 °C to +85 °C\n\nInterface – 2 × 5 pin, 2.54 mm pitch\n\nCompatibility – Raspberry Pi B, A+, B+, 2B, 3B\n\n\nIdeal For\n\nAdding persistent timekeeping to Raspberry Pi projects\nData logging with accurate timestamps\nScheduled tasks on offline Raspberry Pi systems\n\n\nPackage Contents\n\n1× RTC Module with Battery for Raspberry Pi\n1× CR1220 Coin Cell Battery (pre-installed)\n\n\nResources\n\nWiki Documentation\n","vendor":"DFRobot","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":13194,"title":"Default Title","sku":"DF-DFR0386","price":10.3,"compare_at_price":0.0,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}],"documents":[{"title":"Supplier page — dfrobot.com","type":"supplier_description","type_label":"Supplier Description","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDXyMBSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--453d27077add479781fe31adadee9652e4d17fc7/ds1307-rtc-module-with-battery-for-raspberry-pi-dfrobot-com-2026-05-13.pdf","link":false,"file_extension":"PDF","file_size":797155,"description":"Snapshot of https://www.dfrobot.com/product-1421.html (captured 13 May 2026)"},{"title":"DFR0386 raspberry pi rtc module datasheet v1.0","type":"datasheet","type_label":"Datasheet","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDm0ADSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--22bcab34de2cfce25e4ddb8ba9fe1cb72aabf3f5/DFR0386_raspberry-pi-rtc-module_datasheet_v1.0.pdf","link":false,"file_extension":"PDF","file_size":1352998}]}