자체 전원이 장착되어 약 9년~17년의 유효기간을 갖는 리얼타임 시계모듈입니다. 손바닥컴퓨터의 전원과 상관없이 정밀한 고유시계 기능을 구현할 경우 사용합니다.

알림. 본제품은 완성형 제품이며 코인셀 베터리가 함께 제공됩니다. DIY 직접 조립형 RTC제품도 참고하세요.

보드색상은 수시로 변경될 수 있습니다.

Description: This is the SparkFun Real Time Clock (RTC) Module, this little breakout that uses the DS1307 to keep track of the current year, month, day as well as the current time. The module comes fully assembled and includes a small CR1225 Lithium coin cell battery that will run the RTC for a minimum of 9 years (17 years typical) without an external 5V power supply.

The DS1307 RTC is accessed via the I²C protocol. We’ve written a test-bed to program the modules, this code should give you some insight on how to interface the module to any microcontroller using our example software I²C and BCD routines.

This rev of the Real Time Clock module finally adds I²C resistors and a larger battery pad to fix the problems with the battery shorting to the board.

GET STARTED WITH THE RTC MODULE HOOKUP GUIDE

Features:

• Two wire I²C interface
• Hour : Minutes : Seconds AM/PM
• Day Month, Date - Year
• Leap year compensation
• Accurate calendar up to year 2100
• Battery backup included
• 1Hz output pin
• 56 Bytes of Non-volatile memory available to user
• 0x68 I²C Address

Dimensions: 0.75x0.75" (20x20mm)

Documents:

• Schematic
• Eagle Files
• Hookup Guide
• Datasheet (DS1307)
• Arduino Library
• Wiring Example
• Example 16F88 code
• Arduino Tutorial (Portuguese) Thanks Daniel Gonçalves!
• Bildr Tutorial
• GitHub (Design Files)