RTC Time + EEPROM + Charging + Reseved DS18B20 Module, DS1307, I2C


SKU: MOT1007 Category: Tags: , , , ,


Module Feature:

  • DS1307 I2C real-time clock chip (RTC)
  • 24C32 32K I2C EEPROM memory
  • On board lithium battery charging circuit
    • NOT include coin battery (forbidden by shipment rules)
    • you need to buy LIR2032 battery alone to use.
    • When board is powered, battery will be charged, need about 5-6 hours.
    • Fully charged, it can provide 1 year lifetime.
  • Reserved DS18B20 socket.
  • Compact design, 27mm * 28mm * 8.4mm
  • Leads to the a DS1307 clock pin, to provide the clock signal for the MCU.
  • Can be cascaded to other I2C devices.

About DS1307

DS1307 is a low power, with 56 bytes of non-volatile RAM BCD code clock calendar real-time clock chip, the address and data transmission through the two-wire bidirectional serial bus, the chip can be seconds, minutes, hours and other information , the number of days in each month can be adjusted automatically. And there is a leap year compensation function. AM / PM flag determines clock work 24-hour or 12-hour mode, the chip has a built-in power-sense circuit, brownout detection and battery switching function.

DS1307 features:

  • Can account seconds, hours, minutes, monthly number of days, months, days of the week count with leap year compensation function. Record the year on line 2100.
  • 56 bytes of non-volatile RAM
  • Two-wire serial interface
  • Programmable square-wave output
  • Automatic power-down detection and switching circuit
  • In battery backup mode, power consumption is less than 500nA

Wiki Page information here.

Additional information

Weight 0.008 kg

9 reviews for RTC Time + EEPROM + Charging + Reseved DS18B20 Module, DS1307, I2C

  1. 5 out of 5

    harry (verified owner)

    This is a very nice RTC module. It has even a DS18B20 temperature sensor on board. I was up and running within exactly 5 minutes by using this great and simple tutorial: http://bildr.org/2011/03/ds1307-arduino/. I will use this RTC for a project to remind to put the right garbage bin (we have 3 different bins) outside at the right time.

  2. remymorra (verified owner)

    very good!!

  3. 5 out of 5

    zemlin (verified owner)

    Very Nice and simple module, no need to have a I2C Bridge setup. Also allows pins for adding additional I2C devices

  4. 5 out of 5

    Elad (verified owner)

    Very good build quality!
    Great product

  5. 5 out of 5

    cly2 (verified owner)

    Very easy to use with the arduino’s library
    no need to change the battery! Great
    be carrefull: the batery must be charged a litle before use (just connect a while on suply)

  6. 5 out of 5

    Bessière (verified owner)

    Great module, working nice a very small

  7. 3 out of 5

    luismorais (verified owner)

    Nice RTC if your are only experimenting. Easy to integrate with Arduino. But not the best option if you are looking for accuracy. In my experience it looses 2 to 3 seconds a day.

  8. 4 out of 5

    muunokhoi (verified owner)

    Great clock so far. The two rows of pins do not line up right though. Makes it hard to plug both sides into a breadboard or perfboard.

  9. 4 out of 5

    nubcore (verified owner)

    Works well, nice and compact. The programmable interrupt output is a nice feature for power saving modes. There is a place to put a DS18B20 temperature sensor, however the board did not come with one populated, and I had to add my own to make use of this feature, which was easy enough to do.

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