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Want to easily and accurately keep trackof seconds, minutes, hours, week, date, month and year information Then the DS3231 Real-Time Clock RTC is for you The DS3231 is a low-cost, high-precision I2CRTC with integrated crystal oscillator (TCXO) and crystal. The device includes a battery input that maintains accurate timing when the main power is turned off. The integrated crystal improves the long-term accuracy of the device and reduces the number of components in the production line. This breakout board makes it easy to connect thisRTC to your microcontroller board or single-board computer such as Arduino, ESP8266, BeagleBone or Raspberry Pi The four pins correspond to power (VCC, GND) and I2C communication (SDA, SCL). We've included in our design pull-up resistors on the I2C lines as customary. With a coin cell (CR2032-sized, not included)plugged into the adapter on the back of the board, you can get years of precision timekeeping, even when main power is lost. This makes it aperfect solutionfor datalogging, clocks, or anyapplication where time tracking is of the essence. Features: Size: 38mm 22mm 14mm Operating voltage: 3.35.5V Clock accuracy: 040 range, accuracy of 2ppm, annual error 1 minute Includes 2 calendar alarms Programmable square-wave output RTCgenerates seconds, minutes, hours, days, days, months, and years, and provides leap year compensation to 2100 Integrated temperature sensor with 3 accuracy CR2032 battery adapter (battery not included) We have written useful guides for getting you started with the DS3231 Real-Time Clock: ESP8266:Features
Dimension: 0.5 x 3.5 x 2.7 inchs., Weight: 0.5 x 3.5 x 2.7 inchs., Weight: you for your business, your trust and your confidence. It is our pleasure to work with our customers.