What is DS1307 used for?

The DS1307 is a low-power clock/calendar with 56 bytes of battery backup SRAM. The clock/calendar provides seconds, minutes, hours, day, date, month and year qualified data. The end date of each month is automatically adjusted, especially for months with less than 31 days.

What is a DS1307 module?

What is a DS1307 RTC? Also known as Real-Time Clock (RTC), this RTC module is based on the clock chip DS1307 that provides you with seconds, minutes, hours, day, date, month, and year information for your projects.

How does real-time clock module work?

An RTC maintains its clock by counting the cycles of an oscillator – usually an external 32.768kHz crystal oscillator circuit, an internal capacitor based oscillator, or even an embedded quartz crystal. Some can detect transitions and count the periodicity of an input that may be connected.

How do I read DS1307?

Steps to Read Date and Time

  1. Start the I2C communication.
  2. Send the DS1307 address and select write operation.
  3. Send the Address of SECOND Register for reading the second value.
  4. Stop the Communication.
  5. Send the DS1307 address and select Read operation.

Which RTC module is best?

The DS-1307 is often the default choice for an RTC. However, if you need advanced features like alarms or square wave outputs, it’s best to look upmarket. The DS1307 has the proud title of being the de facto RTC for those experimenting with microcontrollers.

Is DS3231 compatible with DS1307?

Although the notes and functions in the sketch refer only to the DS3231, the code also works with the DS1307. There may be a lot of code, however it breaks down well into manageable parts.

What is address of DS1307?

The slave address byte contains the 7-bit DS1307 address, which is 1101000, followed by the direction bit (R/W), which for a write is 0. The slave address byte contains the 7-bit DS1307 address, which is 1101000, followed by the direction bit (R/W), which is 1 for a read. and the same again in figure 4 and figure 5.

Does RTC need battery?

A real time clock is basically just like a watch – it runs on a battery and keeps time for you even when there is a power outage! Using an RTC, you can keep track of long timelines, even if you reprogram your microcontroller or disconnect it from USB or a power plug.