The RTC Pi is very useful for standalone projects where your Raspberry Pi will not have a network connection and therefore no way to retrieve the current date and time from the internet.
A mounting hole is provided so you can securely bolt the RTC Pi to your Raspberry Pi with our mounting kit (sold separately).
The RTC Pi can also be used on Arduino boards when connected via the I2C bus.
The i2c address for the DS1307 RTC is 0x68. This board is not compatible with the ADC Pi V1 board but is compatible with the Delta Sigma Pi and ADC Pi V2 when alternative i2c addresses are used.
Warning: Do not connect the RTC Pi to your Raspberry Pi when the power is connected without a CR2032 battery installed. This can cause damage to the DS1307 RTC chip.
The RTC Pi uses a CR2032 button battery (battery not included).