In the circuit diagram below, the SDA and SCL lines are connected to VCC through two 3.3kΩ pull-up resistors, R2 and R3. ... To interface with the DS1307 RTC module using I2C on an Arduino, you need ...

This is a library to handle Seiko's RX8010SJ RTC module with an arduino. Original datasheet can be found here. To set up your module, you only need to power up and use the i2c protocol to communicate ...