I2C DS1307 RTC/Real-Time Clock Module
$12.95
Product Description
Overview
This module has a DS1307, a battery socket and three pull-up resistors on the PCB. It uses I2C protocol to communicate with external I2C master (Arduino board, PIC, AVR, etc.). The SQW/OUT pin of DS1307 is broke out via a 3-pin interlock connecter. A 4-pin connector eases the wiring to an Arduino Sensor Shield. The three pull-up resistors are connected to SDA, SCL, and SQW respectively, and they are clearly noted on the silkscreen of the PCB. User could take them off board if those pull-up resistors have already been implemented somewhere else off the module.
Features
- Onboard battery socket (CR2032 battery included)
- 3-pin and 4-pin interlock connectors
In the Package
- DS1307 RTC module
- A CR2032 battery
- A 3-pin cable (interlock connector on one end, free on the other)
- A 4-pin cable (interlock connector on one end, free on the other)
Resources
- Product Datasheet (including Arduino sample code)
- DS1307 Datasheet
- DS1307 Library
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