Tiny Real Time Clock I2C Module RTC DS1307 w/ Battery

  • Was  RM12.00 
  • RM6.00

  • Product Code: DS1307
  • Availability: In Stock

This Arduino Tiny RTC I2C module incorporates the DS1307 I2C real time clock IC and the 24C32 32K I2C EEPROM storage, keeps accurate time for years using a tiny coin-cell, and is very simple to connect to your Arduino project.

  • DC 3.0 - 5.5V input voltage
  • I2C interface
  • DS1307 based RTC with CR2032 battery (non-Rechargeable Battery included)
  • Backup by AT24C32 32Kbit
  • DS1307, AT24C32 can work singleness
  • -55°C to +125°C temperature range
  • ±0.5°C accuracy from -10°C to +85°C
  • Dimension: 28x25x8.4mm
  • Weight: 6.3g

Arduino Tiny RTC I2C Real Time Clock Pinout

PIN Description Comment
BAT Battery voltage To monitor the battery voltage, or not connected
GND Ground Ground
VCC 5V supply Power the module and charge
SDA I2C data I2C data for the RTC
SCL I2C clock I2C clock for the RTC
DS DS18B20 Temp. Sensor output One wire interface
SQ Square wave output Normally not used

The I2C wires "SDA" and "SCL" are the data line and clock line, they should be connected to the corresponding pins depending on the Arduino board.

Board I2C / TWI pins
Uno, Ethernet A4 (SDA), A5 (SCL)
Mega2560 20 (SDA), 21 (SCL)
Leonardo 2 (SDA), 3 (SCL)
Due 20 (SDA), 21 (SCL), SDA1, SCL1

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