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DS1307 Real Time Clock Brick
DS1307 Real Time Clock Brick: (New Version)
The DS1307 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an I²C, bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator, but the library only supports the 24-hour mode. The DS1307 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply. Timekeeping operation continues while the part operates from the backup supply.
Note: this module must be installed with the battery to work normally and retain data and time with power off. The battery is a button (type CR1220), the positive side upward.
BATTERY SHIPPING NOTICE: *Battery not included in Postal or FEDEX shipments (New Shipping Regulations). Battery will be included on DHL Shipments.
Connect the + pin to 5v and - pin to GND, the SDA and SCL pin connect to IIC pins
NOTE: The YourDuino RoboRED and Sensor Shield V4 and Sensor Shield V5 have 4-pin connectors that can be used to easily connect to this brick. Otherwise see the ArduinoQuickRef or MegaQuickRef for SDA and SCL pins.
Good multipurpose cable connections for almost any purpose can be made with the low-cost "CableMaker"