Arduino DS3231 ZS042 AT24C32 IIC Module Precision RTC Real time Clock Memory

The DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device has a battery input, cuts off the main power source and maintains accurate timekeeping. The built-in generator improves the long-term accuracy of the device and reduces the number of components in the production line. The DS3231 is available for commercial and industrial applications in a 16-pin, 300-mil SO package. RTC stores information about seconds, minutes, hours, day, date, month and year. Less than 31 days of the month, the end date will be automatically adjusted, including adjustments for leap year. The clock operates in either a 24-hour format or a band/AM/PM display in a 12-hour format. Provides two customizable alarms and a calendar that can be configured for square wave output. Address and data are transmitted serially via a bidirectional I2C bus. A precision voltage reference and temperature-compensated comparator circuit monitors the VCC state to detect power failures, provides a reset output, and automatically switches to a backup power supply when necessary. Additionally, the /RST pin is controlled to generate a manual microprocessor reset. Time-saving and highly accurate adding: DS3231 also has several other features that enhance the system's range of additional features and capabilities. The device is equipped with a very accurate digital temperature sensor, accessed via the I2C* interface (simultaneously). The accuracy of this temperature sensor is ±3°C. The built-in power supply control circuit can automatically detect and manage the main power and backup power (i.e. low voltage battery) to switch between power supplies. If the main power fails, the device can continue to provide accurate time and temperature without affecting performance. When the power or voltage reset value returns within the acceptable range, you can use the built-in reset function to reset the system microprocessor. Module parameters: Size: 38 mm (length) * 22 mm (W) * 14 mm (height) Weight: 8 g Operating voltage: 3.3–5.5 V. Clock chip: high precision DS3231 clock chip Watch accuracy: range 0-40°, accuracy 2ppm, error about 1 minute. Real time clock generator with seconds, minutes, hours, day, date, month and year and provides compensation valid until leap year 2100. IIC bus interface, maximum baud rate 400KHz (operating voltage 5V). can be cascaded to another IIC device, the 24C32 addresses can be shorted. A0/A1/A2 change default address: 0x57. With LIR2032 rechargeable battery to ensure system operation after power failure, the clock moves naturally in normal mode.