DFRobot Gravity - RTC SD2405 I2C - real time clock module

Module with real time clock SD2405 has a dual power supply system, when there is a lack of the main power supply, the module automatically switches to battery power. Without external power, it can work for 5 - 8 years, due to the low current consumption at 1µA.

Module works withArduino. The kit includes a cable adapted to Gravity DFRobot IO Expansion Shield.

• Working voltage: 3.3 V to 5.5 V
• Current consumption: 1 µA
• Time range: up to 2099
• Accuracy:±5 ppm at temperatures from -40 °C to +85 °C
• The RTC indicates: seconds, minutes, hours, days, months and years up to 2100
• Timer
• The choice of 12 or 24 hour time display
• Dimensions: 35,5 mm x 22 mm
• Weight 6 g

• The website of the manufacturer: DFRobot DFR0469
• User guide Wiki
• The Arduino library
• Diagram of the module SD2405
• The layout of the module SD2405
• Documentation
• GitHub