MSX RTC DS1307 I2C - real time clock

Module with real time clock DS1307 and backup battery. It allows you to read the time in hours, minutes, and seconds, date: month, day, year. The communication interface is I2C bus (SDA and SCL), data update frequency is 1 Hz (1 second).

The set consists of:

• Real Time Clock Module
• CR2032 battery
• Goldpin connector 1x5 - independent soldering

The product is compatible with Arduino

The supply voltage of5 Vis connected to the terminal marked with the same symbol. The I2C bus must be connected to the output ofSCL- clock line andSDAis the data line. PinSQWoutput is a square signal with the selected frequency (see page 3of the documentation).GNDis the ground system.

Outputs are solder fields for soldering goldpin connectors- 2.54 mm raster (included in the kit for self soldering). Thanks to them, it is possible to connect the system with thebreakout boardor the main module (for example,STM32DiscoveryorArduino) viawires.

• Supply voltage: 5 V
• Current consumption: less than 500
• The interfaceof communication: I2C / TWI (SDA, SCL)
• Update rate: 1 Hz (1 second)
• Available data:
  • Time: time (AM, PM), minute, second
  • Date: month, day, year
• The ability to save data via battery (included)
• Installed pull-up resistors 4.7 kω for the I2C bus that you want to connect by soldering the jumpers on the reverse side of the board - disabled by default
• Accurate calendar up to 2100
• Internal memory total: 56 bytes
• Board dimensions: 23 x 35 mm

• Library for Arduino
• Documentation of the chip DS1307