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DS1302 real-time clock (RTC) module for Arduino, Raspberry Pi, and ESP8266
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Description
DS1302 real-time clock (RTC) module
Real-time clock (RTC) module based on the DS1302 is a functional device for reading time and date with 1 second precision. The calendar is programmed through 2100. Thanks to a lithium battery for backup power, the circuit eliminates the risk of data loss when mains power is lost. A standard 2.54mm goldpin connector and I2C interface allow easy integration with many systems. The module is an excellent choice for ESP8266, ESP32, Arduino, and Raspberry Pi.
Key technical specifications
- IC: DS1302
- Supply voltage: 2V to 5.5V
- Battery holder: CR2032
- Battery type: CR2032
- Operating mode: 12/24 hour
- Outputs: seconds, minutes, hours, day of week, month, and year
- Update frequency: 1Hz (1 second)
- Information: PM/AM
- Dimensions: 43 x 23mm
- Communication interface: I2C
- Clock stabilization: 32.768kHz crystal
Benefits
- Data integrity: The lithium battery provides backup power and protects against loss of time settings.
- High precision: Accurate time reading to 1 second thanks to crystal stabilization.
- Long-term operation: Built-in calendar programmed for maintenance-free operation through 2100.
- Easy integration: Standard 2.54mm goldpin connector simplifies connection to breadboards and jumper wires.
- Versatility: Wide supply voltage range from 2V to 5.5V supports a variety of systems.
Example applications
- Data logging systems requiring accurate timestamps.
- Home automation controllers running on time schedules.
- Electronic clocks, alarms, and information displays.
- Weather stations logging readings at set intervals.
- IoT projects using microcontrollers to synchronize tasks.
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