Adafruit DS3231 Precision RTC Breakout Compatible With_Raspberry Pi 3 Maximum voltage on ADC inputs:

Maximum voltage on ADC inputs: 3

SN74AHCT1G08 - Single 2-Input AND Gate

Analogue voltage output (Vcc/512 volts per inch)

An IDC cable

This pack does come with a Raspberry Pi 3 Computer

Adafruit DS3231 Precision RTC Breakout Compatible With_Raspberry Pi 3 Maximum voltage on ADC inputs:The DS3231 Precision RTC Breakout delivers highly accurate timekeeping with built in temperature compensation and battery backupperfect for clocks, data logging, and projects that need reliable time even without power. The datasheet for the Adafruit DS3231 explains that this part is an "Extremely Accurate IC Integrated RTC TCXO Crystal". And, hey, it does exactly what it says on the tin! This Real Time Clock (RTC) is the most precise you can get in a