Yes, you read that correctly. The setDS1307Time method takes – in that exact order. It’s explicit, not fancy, and it works.
// Set current time: seconds, minutes, hours, day of week, day of month, month, year // myRTC.setDS1302Time(00, 30, 10, 2, 14, 4, 2026); loop() { myRTC.updateTime(); Serial.print( "Current Time: " ); Serial.print(myRTC.hours); Serial.print( ); Serial.print(myRTC.minutes); Serial.print( ); Serial.println(myRTC.seconds); delay( Use code with caution. Copied to clipboard or a code for a custom alarm system using this library?
Comprehensive Guide to the virtuaBotixRTC Arduino Library: Mastering Real-Time Clocks virtuabotixrtch arduino library
void loop() myRTC.updateTime();
The functions are intuitive, making it great for beginners who might be overwhelmed by the more complex bit-math usually required to read/write to RTC chips. Yes, you read that correctly
To use the library, you must connect the DS1302 RTC module to your Arduino. The DS1302 uses a 3-wire serial interface (distinct from I2C or standard SPI). DS1302 Pin Description Arduino Pin (Example) Power Supply (2.0V - 5.5V) 5V or 3.3V GND CLK Serial Clock DAT Serial Data RST (or CE) Reset / Chip Enable
At the heart of the VirtuabotixRTC library is the itself. While the Arduino has an internal timer (the millis() function), it's not a true real-time clock. The Arduino's timer stops counting when power is removed or the board is reset, and it's not designed for keeping accurate track of calendar days, months, and years. // Set current time: seconds, minutes, hours, day
Provides both individual components (e.g., myRTC.hours ) and formatted string outputs (e.g., myRTC.gettime() ). 2. Installation and Setup
Download the repository source directly from the chrisfryer78 ArduinoRTClibrary GitHub Repository . Keep the downloaded file as a .zip folder.