The DS1302 RTC Real Time Clock Module with CR2032 Battery is a compact electronic module used to keep accurate time in microcontroller projects (such as Arduino, ESP8266, or PIC), even when the main power is turned off. Key Features Real-time tracking: Maintains seconds, minutes, hours, day, date, month, and year. Battery backup: The included CR2032 coin battery keeps the clock running during power outages. Low power consumption: Designed for long battery life. Simple interface: Uses a 3-wire serial communication (CLK, DAT, RST), making it easy to connect. Trickle charger support: Can recharge a rechargeable backup battery (if used instead of a standard CR2032). Typical Uses Data logging projects Digital clocks Timers and alarms Automation systems Attendance or timestamp devices Basic Specs Operating voltage: 2.0V – 5.5V Time format: 12 or 24 hour Built-in calendar with leap-year compensation Temperature range: 0°C to 70°C (typical)
