Write and read from Registers

[AlexAyoub545]

Added code to write and read from registers from either faulty modules or modules that aren't properly updating. Used on Mega 2560 and ESP32-32X and both worked.

Code I used below for the ESP32

#include <Arduino.h>
#include <Ds1302.h>

#define PIN_ENA 26  
#define PIN_CLK 14  
#define PIN_DAT 27   

Ds1302 rtc(PIN_ENA, PIN_CLK, PIN_DAT);

uint8_t bcdToDec(uint8_t bcd) {
  return ((bcd >> 4) * 10) + (bcd & 0x0F);
}
uint8_t decToBcd(uint8_t dec) {
  return ((dec / 10 * 16) + (dec % 10));
}

void setup() {
  Serial.begin(9600);
  rtc.init();

  rtc.writeRegister(0x8E, 0x00);                 // clear write-protect
  rtc.writeRegister(0x80, decToBcd(0) & 0x7F);   // seconds (bit7=0 ensures oscillator runs)
  rtc.writeRegister(0x82, decToBcd(24));         // minutes
  rtc.writeRegister(0x84, decToBcd(16));         // hours
  rtc.writeRegister(0x86, decToBcd(27));         // day of month
  rtc.writeRegister(0x88, decToBcd(5));          // month
  rtc.writeRegister(0x8A, decToBcd(3));          // day of week 
  rtc.writeRegister(0x8C, decToBcd(26));         // year (00–99)

  Serial.println("RTC registers written directly.");
}

void loop() {
  // Show current time
  uint8_t sec = bcdToDec(rtc.readRegister(0x81));
  uint8_t min = bcdToDec(rtc.readRegister(0x83));
  uint8_t hr  = bcdToDec(rtc.readRegister(0x85));
  uint8_t day = bcdToDec(rtc.readRegister(0x87));
  uint8_t mon = bcdToDec(rtc.readRegister(0x89));
  uint8_t yr  = bcdToDec(rtc.readRegister(0x8D));

  Serial.printf("%02d/%02d/%04d %02d:%02d:%02d\n",
                day, mon, 2000 + yr, hr, min, sec);

  delay(1000);
}```

[rafacouto]

Could you please @AlexAyoub545 explain the detail of changes you are introducing and why are removing the comment headers?