Virtuabotixrtc.h Arduino Library Exclusive Jun 2026

// Define your pins: (RST, DAT, CLK) int RTC_RST = 2; int RTC_DAT = 3; int RTC_CLK = 4;

// Create the myRTC object virtuabotixRTC myRTC(RST, DAT, CLK);

: virtuabotixRTC(uint8_t CLK, uint8_t IO, uint8_t CE) initializes the digital pins used for communication. virtuabotixrtc.h arduino library

Once updateTime() is called, the library provides direct access to time components via public members of the object: myRTC.seconds myRTC.minutes myRTC.hours myRTC.dayofmonth myRTC.month myRTC.year myRTC.dayofweek Example Implementation

: Typically includes VCC, GND, CLK (Clock), DAT (Data), and RST (Reset) pins. // Define your pins: (RST, DAT, CLK) int

. This is usually called once in setup() to calibrate the clock. updateTime()

While newer chips like the DS1307 or DS3231 utilize the I2C protocol, the DS1302 relies on a simple 3-wire serial interface. The virtuabotixRTC library simplifies communication with this hardware by eliminating the need for complex, low-level register manipulation. Key Benefits This is usually called once in setup() to

| Feature | VirtuabotixRTC | RTClib (Adafruit) | DS1302 (Arduino playground) | | :--- | :--- | :--- | :--- | | Supported Chips | DS1302 only | DS1307, DS3231, PCF8523 | DS1302 only | | Interface | 3-wire (bit-bang) | I2C (hardware) | 3-wire (bit-bang) | | Ease of Use | Very easy (no Wire.h) | Moderate (needs Wire.h) | Moderate | | Accuracy Support | No temp compensation | Yes (DS3231) | No | | Active Maintenance | No | Yes (Adafruit) | No | | Memory footprint | ~2-3 KB | ~4-6 KB (plus Wire) | ~2 KB |

By offloading timekeeping to an RTC module and using this library, your Arduino can maintain accurate time even if it loses power, resets, or is busy executing heavy code. Why Use the VirtuabotixRTC Library?