High-precision RTC expansion module dedicated to Raspberry Pi Pico. Use the I2C bus to communicate and allow connections. With DS3231 clock chip and backup battery holder, it can time the year, month, day, hour, minute and second.
Raspberry Pi Pico header supports Raspberry Pi Pico series. Onboard high precision RTC chip DS3231, with backup battery holder and Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100. Optional format: 24-hour OR 12-hour with an AM/PM indicator.
1. DS3231: high precision RTC chip, I2C bus 2. RTC backup battery: supports CR1220 button cell 3. Power indicator: enabled by soldering a 0Ω resistor on the jumper, disabled by default 4. Raspberry Pi Pico header: for attaching to Raspberry Pi Pico, stackable design