{"title":"Real Time Clock Module (DS1307) V1.1","handle":"real-time-clock-module-ds1307-v1-1","url":"/products/real-time-clock-module-ds1307-v1-1","description":"   The DS1307 Real Time Clock module developed by one of our designers: Waiman.  The  module comes fully assembled and pre-programmed with the current time (ok, so it's our current time - MST). The included Lithium coin cell battery (CR1225 41mAh) will run the module for a minimum of 9 years (17 years typical) without external 5V power. The DS1307 is accessed via the I2C protocol.   Except the DS1307 real time clock, the module also integrate the I2C EEPROM chip(24C32) and the DS18B20 sensor interface. The I2C EEPROM makes it possible to save the sensor data easily without spending too much microcontroller source. And the DS18B20 interface with the pull-up resistor embeded will be helpful to extend temperature monitoring feature for your project.      SPECIFICATIONS           Working voltage: 5v     Two wire I2C interface     Hour : Minutes : Seconds AM/PM     Day Month, Date - Year     Leap year compensation     Accurate calendar up to year 2100     Consumes Less than 500nA in Battery-Backup     Battery included     1Hz output pin     56 Bytes of Non-volatile memory available to user     provides 32,768 bits(4KB) of serial electrically erasable and programmable     read only memory (EEPROM)     Embed DS18B20 temperature sensor interface with the pull-up resistor     Dimensions: 28mm x 25mm x 8mm(1.10x0.98x0.31\")         DOCUMENTS           WIKI (Real Time Clock Module (DS1307) V1.1 (SKU:DFR0151))     Arduino library     Wiring diagram     Schematic     EEPROM datasheet     DS1307 datasheet     Zip file with all of the above         SHIPPING LIST           Real Time Clock Module (DS1307) v1.1  x1     ","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":10637,"title":"Default Title","sku":"DF-DFR0151","price":7.07,"on_sale":false,"in_stock":true,"available_quantity":312,"option1":"Default Title"}]}