DS3231 Precision RTC Module
DS3231 Precision RTC Module
SKU: Grade Level: 6-12 | SKU: 945-DS12
Couldn't load pickup availability
Shipping and applicable taxes will be calculated at checkout or on your quote.
The TechBox DS3231 Precision Real Time Clock Module is an extremely accurate I2C-Integrated RTC/TCXO/Crystal. This Real Time Clock (RTC) is the most precise time keeping you can get in a small and low power package. This breakout board is breadboard-friendly and accepts a CR2032 coin cell battery. With the battery in place, the RTC will keep time accurately for years without ever being connected to power! It is one of the best ways to get started with learning how to interact with Arduino peripherals.
What's Included:
- DS3231 AT24C32 IIC Precision RTC Module
- CR2032 Coin Cell Battery
Board Features:
- Can be connected directly to the microcontroller IO ports
- Standard 2.54 mm pins for input and output connections
- Two programmable square-wave outputs
- Real time clock generator for seconds, minutes, hours, day, date, month, and year timing
- Valid until 2100 with leap year compensation
- Can be cascaded with other I2C devices
- The address can be set using the pins A0/A1/A2 (the default address is 0x57)
- Battery socket compatible with LIR2032 batteries
- I2C interface
Specifications:
- Operating voltage: 3.3 V to 5.5 V
- Real-time clock chip: DS3231
- Clock accuracy: 2 ppm
- Memory chip: AT24C32 (32 Kb storage capacity)
- On-chip temperature sensor with an accuracy of ±3 ℃
- I2C bus interface maximum speed: 400 kHz
Product Dimensions:
- (x1) - 3.14"L x 2.36"W x 1.18"D (80x60x30mm)
- 1.24 Oz. (35g)



What Educators are Saying
Real feedback from educators using TechBox.

"My students had such a great time with their Tech Boxes. Many, were so excited to accomplish the task that they were ready to take them home to continue the lesson.
You know what else was cool? All the kids who were running around after the lesson with Tech Boxes in their arms bragging to other students and fielding questions about them - they were so excited and proud!"
Educator, DuPont Manual High School, Louisville KY


"TechBox offered the hands-on interactive & educational component to Centre College's high school STEM camp that we needed! The Laser Stem Matrix introduced the students to wiring bread boards and programming, and it sparked the interest of some potential engineers in the group! With a range of exposure to technology and electronics, TechBox was able to meet the needs of everyone - from the beginner to the experienced. The instructions were easy to follow and offered educational lessons throughout for those who had less experience."
STEM Summer Camp Instructor, Centre College (KY)

The Educator Dashboard
Assign projects, group students, and track progress—all in one place, with educator resources, facilitation guides, and classroom support built right into the LMS.
