Wiring the DS1302 to your Arduino is straightforward. The library is flexible and allows you to choose any digital pins you wish. The table below shows a common wiring example:
First, include the library header and create an instance of the virtuabotixRTC class, passing the pins you used for CLK, DAT, and RST: virtuabotixrtch arduino library
| Feature | VirtuabotixRTC | Adafruit RTClib | | :--- | :--- | :--- | | | ~3KB Flash, low RAM | ~7KB+ Flash | | Ease of Use | Very easy (Int variables) | Moderate (DateTime object) | | Timestamp support | No (manual conversion) | Yes (unixtime) | | Alarm features (DS3231) | No | Yes | | Temperature reading | No | Yes (DS3231 only) | | Best for | Beginners, small MCUs | Complex dataloggers | Wiring the DS1302 to your Arduino is straightforward
The VirtuabotixRTC library is a popular Arduino library used to interface with Real-Time Clock (RTC) modules, most notably the DS1302. It allows Arduino microcontrollers to keep accurate time even when disconnected from a power source or when the main microcontroller is reset. It allows Arduino microcontrollers to keep accurate time
Installing the library is just like installing any other library in the Arduino IDE. Here's how you can do it:
After installation, verify success by looking for examples: . You should see SetTime and ReadTime .