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DS3231 AT24C32 I2C Precision RTC Clock and EEPROM Memory Module

DS3231RTCLOCK

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₹ 75.00 tax excl.

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DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. Compared to the DS1302 solution, the DS3231 has many advantages, it function with a VCC ranging from 2.3V to 5.5V and has a battery backup. Unlike the DS1307, the DS3231 also has an integrated crystal (so no external crystal required), temperature sensor, 2 programmable time-of-day alarms, a 32.768 kHz output pin to ensure higher accuracy.

A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, provide a reset output, and if necessary, automatically switch to the backup power supply. In addition, / RST pin is monitored as generating μP reset manually.

Besides, there is also a EEPROM AT24C32 to supply you 32K EEPROM to store your data, it is the best choice for your application that needs recoding time, a built battery holder make this module suitable. It is a good substitution for the data logging shield, with even higher time precision.

Features:

  • Size: 38mm (length) * 22mm (W) * 14mm (height)
  • Weight: 8g
  • Operating voltage: 3.3 - 5 .5 V
  • Clock chip: high-precision clock chip DS3231
  • Clock Accuracy: 0-40 ℃ range, the accuracy 2ppm, the error was about 1 minute
  • Calendar alarm clock with two programmable square-wave output
  • Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation
  • Chip temperature sensor comes with an accuracy of ± 3 ℃
  • Memory chips: AT24C32 (storage capacity 32K)
  • IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V)
  • Can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57

 

Wiring instructions (With Arduino UNO R3 for example):

  • SCL → A5
  • SDA → A4
  • VCC → 5V
  • GND → GND

 

Note: Does not comes with the battery and you need to purchase that separately from Hacktronics India.

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AT24C32_TEST.zip

AT24C32 Test Sample Code

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DS3231_TEST.zip

DS3231 Test Sample Code

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DS3231Sch.jpg

DS3231 AT24C32 Module Schematics

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