Grove Pro Mini LP
0097-060916-01
P r o d u c t S p e c i f i c a t i o n
accurate timekeeping when main power to the device is interrupted. The integration of the crystal resonator
enhances the long-term accuracy of the device.
The RTC maintains seconds, minutes, hours, day, date, month, and year information. The date at the end of
the month 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 an AM/PM indicator. Two programmable time-
of- day alarms and a programmable square-wave output are provided. Address and data are transferred
serially through the I2C bidirectional bus.
A precision temperature-compensated voltage reference and comparator circuit monitors the status of VDD
to detect power failures, to provide a reset output, and to automatically switch to the backup supply (battery
included) when necessary. Additionally, the RST pin is monitored as a pushbutton input for generating a µP
reset.
Note that the 32KHz line and the NINT/SQW Line are connected to D3/D2 on the Grove Pro Mini LP
respectively. This allows you to use the DS3231 as a timer and alarm source of interrupts.
The specifications for this device is on the SwitchDoc Labs Grove Pro Mini LP product page.
AT24C32 32KB EEPROM
The AT24C32 provides 32,768 bits of serial electrically erasable and programmable read only memory
(EEPROM) organized as 4096 words of 8 bits each. The EEPROM drivers are included in the SwitchDoc
driver software.
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