DS3231 RTC and AT24C32 Memory Module - No Battery

Give a microcontroller project a dedicated clock and calendar. This DS3231-family RTC module combines timekeeping with an AT24C32 memory chip and an I2C interface, providing a compact board for projects that need to track dates and times.

✅ Keep calendar time in the project - The RTC maintains seconds through years for your project's time-based functions.

✅ Connect through a shared digital bus - I2C communication lets a compatible controller read the clock data.

✅ Add time-based triggers - Two configurable alarms provide options for scheduled events in your design.

✅ Store additional project data - The onboard AT24C32 memory adds storage alongside the clock circuitry.

Make Timekeeping a Dedicated Part of the Circuit

A data logger or scheduled controller needs more than a running program counter when calendar time matters. An RTC gives the project a clock to query, keeping time information separate from the main application logic.

Plan the wiring and backup arrangement from the supplied module's documentation. The battery is not included, and the chip suffix may vary between DS3231SN and DS3231M, so do not assume identical precision specifications for every board.

Technical details

• RTC: DS3231 family; supplied suffix may vary
• Memory: AT24C32
• Interface: I2C
• Operating voltage: 3.3-5.5 V
• Listed size: approximately 38 × 22 × 14 mm
• Package: one module, without battery

Add a dedicated RTC and memory board to your next time-aware electronics project.