Virtuabotixrtc.h Arduino Library [patched]

The library is a lightweight, highly efficient Arduino library designed to interface with Real-Time Clock (RTC) modules. While it can adapt to various timing chips, it is most famous for its seamless, public-domain implementation for the DS1302 3-wire timekeeping chip.

In the realm of embedded systems and physical computing, tracking the passage of real-world time is a fundamental requirement. From data loggers and automated irrigation systems to alarm clocks and industrial controllers, many Arduino projects need to know not just the relative time since boot, but the actual calendar date and time. While the Arduino’s built-in millis() function can track elapsed time, it loses its reference the moment power is removed. This necessitates an external Real-Time Clock (RTC) module. Among the various libraries available to interface with these modules, the library stands out as a lightweight, accessible, and dedicated solution for communicating with the popular DS1302 RTC chip, offering a simple yet powerful interface for timekeeping in resource-constrained environments. virtuabotixrtc.h arduino library

Here is the standard wiring diagram:

While it can work with others, this library is primarily used with the . It is a low-power, serial RTC that tracks seconds, minutes, hours, days, date, months, and years. Key Features of the DS1302 Module: The library is a lightweight, highly efficient Arduino

void loop() // Nothing to do here

Standard wiring for most examples using this library typically connects to the following digital pins on an Arduino Uno: Arduino Project Hub DS1302 Pin Arduino Pin (Typical) Library Parameter SCLK / CLK Basic Usage Example From data loggers and automated irrigation systems to

For DS1302 users, the main alternative is the library by Henning Karlsen (often named DS1302.h ). Karlsen’s library is more feature-complete, offering alarm support and better error checking. However, it is also larger and more complex. The VirtuabotixRTC library is often preferred for very small projects or when code simplicity trumps feature richness.