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Virtuabotixrtch Arduino Library <DIRECT>

void enableTrickleCharge(int diodeType, int resistorType);
void disableTrickleCharge();

Common values:

To use the library, you must first create an object. The constructor takes two arguments: the SDA pin and the SCL pin. For standard boards, we use A4 and A5 even though they are analog pins (they double as digital I2C).

#include <VirtuabotixRTC.h>

// Pin definition for Uno/Nano
// (SDA, SCL)
VirtuabotixRTC myRTC(A4, A5);
 virtuabotixrtch arduino library

Provide a lightweight, beginner-friendly interface to read/write time and date on a DS1302 without requiring complex bit-banging code. Common values:

You won't always find this specific library in the standard Library Manager search under "Virtuabotix." It is often distributed as a .zip file.

Cause: The library defines dayofweek where Monday = 1. If you expect Sunday = 1, you must offset: To use the library, you must first create an object

int sundayBased = (myRTC.dayofweek % 7) + 1;

VirtuabotixRTC(int cePin, int ioPin, int sclkPin);

On tiny chips without hardware I2C, you can use any two digital pins:

VirtuabotixRTC myRTC(0, 1); // Pin 0 = SDA, Pin 1 = SCL

Performance will be slower but functional.