- On sale!
Description
Module with real time clock DS1307 and backup battery power. It allows you to read the time in hours, minutes, seconds, and dates: month, day, year. The communication interface is an I2C bus (SDA and SCL lines), data update frequency is 1 Hz (1 second). Included in the module battery allows you to keep your system working up to 9 years without external power.
In this version, added were resistors for I2C bus, as well as increased was the pad for the batteries to solve the problem of short-circuit of the board
Specification
- Supply voltage: 5 V
- Current consumption: less than 500 nA
- The interfaceof communication: I2C / TWI (SDA, SCL)
- Update rate: 1 Hz (1 second)
- Available data:
- Time: hour (AM, PM), minute, second
- Date: month, day, year
- The possibility to save data via battery
- Accurate calendar up to 2100
- Public internal memory: 56 bytes
- Board sizes: 20 x 20 mm
|
The product is compatible with Arduino Connection of the system, is facilitated by a turtorial for users ofArduino. |
Connection
The supply voltage of5 Vis connected to the pin marked with the same symbol. The I2C bus must be connected to the pins ofSCL- clock line andSDA - the data line. PinSQW is an output of a square signal with the selected frequency (details on the page 3of the documentation).GNDis the ground of the system.
Connectors
Pins are solder fields for soldering the goldpin connectors- 2.54 mm pitch (not included in the set, sold separately). Thanks to them, it is possible to connect the system with thebreadboardor the main module (for example,STM32DiscoveryorArduino) viawires.
Useful links |
