The DS1307 RTC module includes all onboard components necessary for the proper operation of a DS3107 chip.

It can range from 3.3 to 5.5 volts.īAT is a backup supply input for any standard 3V lithium battery or another energy source that allows the gadget to keep a precise time when the primary power is lost. SDA is the I2C serial interface's data input/output. SCL is the I2C interface's clock input, which is used to synchronize data transfer across the serial interface. SQThe pin may be programmed to emit one of four square-wave frequencies: 1Hz, 4kHz, 8kHz, or 32kHz.ĭS If your module has a DS18B20 temperature sensor fitted immediately next to the battery holder, the pin is designed to output temperature information (labeled as U1).

These RTCs may be found in various applications, including embedded devices and computer motherboards. The RTC requires a tiny amount of electricity to stay active. The key advantage of RTC is that it has a battery backup system that keeps the clock/calendar working even if the power goes out. They come in the form of integrated circuits (ICs) that control time like a clock and date like a calendar. Each month's end date is automatically changed, particularly for months with fewer than 31 days. The clock/calendar displays data in seconds, minutes, hours, days, dates, months, and years. The DS1307 is a battery-backed clock/calendar with 56 bytes of SRAM. Many time-critical applications and devices rely on it, including servers, GPS, and data loggers. So, how do electronics accomplish this? A Real-Time Clock, or RTC, is a timekeeping device embedded inside an Integrated Circuit, or IC. Time is vital in today's society, and when it comes to certain electronics, timing is crucial just like us, they require a means to keep track of time, and precise time.

Ds1307 programming