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  Temperature and humidity with A6
Posted by: Savino - 09-27-2024, 08:49 PM - Forum: KC868-A series and Uair Smart Controller - Replies (9)

Hello,
i'd like to add temperature and umidity sensor to my kc868-A6 board.
The board is flashed with latest kincony firmware (2.2.4).

I know that this board has two specific input designed to accept temperature and humidity sensors.

I need some info:

1) wich sensors are suitable to this board?
2) wich one do you suggest?

Thanks

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  SHT30/DS18B20 errors and warnings in the logs
Posted by: TaurosRMK - 09-27-2024, 08:16 PM - Forum: KC868-A2 - Replies (30)

I have connected the SHT30 I2C sensor to the port and everything works for a few minutes like normal, and then I start getting errors and some warnings in the logs. I am using ESPHome. At the same time, one DS18B20 sensor also sends warnings, although it seems to work, but from time to time the sensor may become unavailable.

I also wanted to use the TCA9548A I2C Multiplexer to connect 3 SHT30/SHT40 sensors, but I also got errors. Nevertheless, all of these SHT30/SHT40 sensors work fine on the individual ESP32 boards.

CRC8 Checksum invalid at pos 0!
Component sht3xd.sensor set Warning flag: unspecified
Component dallas_temp.sensor set Warning flag: scratch pad checksum invalid

What could it be?

   

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  AWG/gauge of output, and certification
Posted by: AlexG - 09-27-2024, 03:15 PM - Forum: KC868-A16 - Replies (1)

I'm looking to use the KC868-A16S relay board for lighting here in the US, and for that, the outputs would pass through 120v and up to 10A.

What wiring gauge do these terminals accept?
What is the model of the OMRON relay?
Is there any certification for this, like UL or similar?

TY.

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  using KC868-A16 ESP32 relays at 220v
Posted by: poseido - 09-27-2024, 09:30 AM - Forum: KC868-A series and Uair Smart Controller - Replies (1)

Hello

I've ben trying to make my home heating instalation work with first some esp32+tasmota+DIY board, then integrated borads with ESP32 and realys.,.. but now I found Kincony products and they do look great! I want to use them!

My issue is the following:

I want to control my water based heating floor circuits with the   KC868-A16 ESP32, each circuit has a valve that works with 2 wires, at 220v-230v, if there is current, they open, if not they selfclose (similar to this:  Actuador térmico eléctrico, radiador para calefacción por suelo radiante, válvula NC, N58A, 230V - AliExpress 13)  but they work with 220 volts,  so seeing the  KC868-A16 ESP32 capabilities, I see that the relay outputs say 0-12v to 24v...

any work around for that? using 220v with a very low amperage would kill the PCB?

thanks!

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Question Roller shutters steering with (negative) -24V DC
Posted by: esde - 09-27-2024, 06:47 AM - Forum: DIY Project - Replies (3)

Hello,

First of all I would like to thank you for your hardware. Works perfectly and it pretty much powers my house now (with help of ESPHome) Smile Good job!

Now, my challenge is to manage roller shutters. I do have a separate hardware that contains relays and I would like to use it because it has built-in safety features. The problem is that the coils are managed using a -24V DC. Please note the minus there. So, to open, or close a shutter I need to connect the wire that's coming from the relay module to -24V DC. Meh.

What would be the best way to achieve it? If possible I would love to refrain from using another hardware in between the board and the relay module. Maybe is there something on your product list that could be used for this? I would need 32 channels (16 up, 16 down). If not, what would be your suggestion?

Thanks!

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  [arduino code examples for B16M]-11 digital INPUT trigger OUTPUT directly
Posted by: admin - 09-27-2024, 02:45 AM - Forum: B16M - No Replies

Code:
/*
* Made by KinCony IoT: https://www.kincony.com
*
* This program reads 16 input states from a PCF8575 I/O expander and
* controls a corresponding 16-channel relay module. When an input pin
* is LOW, the corresponding relay is turned ON (LOW means ON for the relay).
* When the input pin is HIGH, the corresponding relay is turned OFF.
*
* Pin Definitions:
* - SDA: GPIO 38
* - SCL: GPIO 39
* - Input I2C Address: 0x24
* - Relay I2C Address: 0x25
*/

#include <Wire.h>        // I2C communication
#include <PCF8575.h>     // Library to control the PCF8575 I/O expander

// Define I2C pins
#define SDA 38           // SDA pin
#define SCL 39           // SCL pin

// I2C addresses
#define INPUT_I2C_ADDRESS 0x24   // I2C address for the input PCF8575 module
#define RELAY_I2C_ADDRESS 0x25   // I2C address for the relay PCF8575 module

PCF8575 pcf8575_IN(INPUT_I2C_ADDRESS);    // Create an object for the input PCF8575
PCF8575 pcf8575_RL(RELAY_I2C_ADDRESS);    // Create an object for the relay PCF8575

void setup() {
  // Initialize I2C communication
  Wire.begin(SDA, SCL);
 
  // Initialize serial communication
  Serial.begin(115200);
 
  // Initialize input and relay modules
  pcf8575_IN.begin();
  pcf8575_RL.begin();
 
  // Turn off all relays at the start
  for (int i = 0; i < 16; i++) {
    pcf8575_RL.write(i, LOW);  // Assuming relays are LOW when OFF, setting all relays to OFF initially
  }
 
  Serial.println("System started: Input state controlling 16 relays");
}

void loop() {
  uint16_t inputState = 0;

  // Read the state of 16 inputs
  for (int i = 0; i < 16; i++) {
    if (pcf8575_IN.read(i)) {
      inputState |= (1 << i);  // If input is HIGH, set the corresponding bit
    } else {
      inputState &= ~(1 << i); // Otherwise, clear the corresponding bit
    }
  }
 
  // Control the relays based on the input state
  for (int i = 0; i < 16; i++) {
    if (inputState & (1 << i)) {
      pcf8575_RL.write(i, HIGH);  // If input is HIGH, turn the relay OFF
    } else {
      pcf8575_RL.write(i, LOW);   // If input is LOW, turn the relay ON
    }
  }

  // Delay for 500 milliseconds
  delay(500);
}
arduino ino file download: 
.zip   11-input-trigger-output.zip (Size: 1.02 KB / Downloads: 452)
BIN file (you can use esp32 download tool download to ESP32-S3 with address 0x0 then directly to use) download:
.zip   11-input-trigger-output.ino.merged.zip (Size: 189.72 KB / Downloads: 403)

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  [arduino code examples for B16M]-10 Print TEXT on SSD1306 OLED displayer
Posted by: admin - 09-27-2024, 02:38 AM - Forum: B16M - Replies (2)

Code:
/*
* Made by KinCony IoT: https://www.kincony.com
*
* This Arduino program demonstrates how to display text on an SSD1306 128x64 OLED display using the U8g2 library.
* The program draws two lines of text on the display:
* - The first line is "KINCONY" in a larger font.
* - The second line is "www.kincony.com" in a smaller font.
*
* The display is connected via I2C (software implementation) with:
* - SCL (clock) on pin IO39
* - SDA (data) on pin IO38
*
* The display's I2C address is set to 0x3C.
*/

#include <U8g2lib.h>  // Include the U8g2 library for controlling the OLED display
#include <Wire.h>     // Include the Wire library for I2C communication

// Initialize the display using the software I2C method (SCL = IO39, SDA = IO38)
U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0,  39, 38, U8X8_PIN_NONE);  // Screen rotation: U8G2_R0

// Function to display page 1 content
void page1() {
  // Set font size 18 for the larger "KINCONY" text
  u8g2.setFont(u8g2_font_timR18_tf);  // Use the Times Roman font, size 18
  u8g2.setFontPosTop();               // Set the text position at the top of the display
  u8g2.setCursor(5, 0);               // Position the cursor at coordinates (5, 0)
  u8g2.print("KINCONY");              // Display the text "KINCONY" on the screen

  // Set font size 12 for the smaller "www.kincony.com" text
  u8g2.setFont(u8g2_font_timR12_tf);  // Use the Times Roman font, size 12
  u8g2.setCursor(0, 40);              // Position the cursor at coordinates (0, 40)
  u8g2.print("www.kincony.com");      // Display the text "www.kincony.com"
}

// Setup function, runs once when the program starts
void setup() {
  // Set the I2C address for the display to 0x3C
  u8g2.setI2CAddress(0x3C*2);  // I2C address shift for 8-bit format
 
  // Initialize the display
  u8g2.begin();
 
  // Enable UTF-8 character printing for the display
  u8g2.enableUTF8Print();  // Allow UTF-8 encoded text to be printed
}

// Main loop function, continuously runs after setup()
void loop() {
  // Begin the display drawing process
  u8g2.firstPage();  // Prepare the first page for drawing
  do {
    // Call the page1() function to draw content on the display
    page1();
  } while (u8g2.nextPage());  // Continue to the next page until all pages are drawn
}
arduino ino file download: 
.zip   10-oled-ssd1306.zip (Size: 1.12 KB / Downloads: 415)
BIN file (you can use esp32 download tool download to ESP32-S3 with address 0x0 then directly to use) download:
.zip   10-oled-ssd1306.ino.merged.zip (Size: 201.32 KB / Downloads: 431)

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  [arduino code examples for B16M]-09 how to communication with Tuya WiFi module
Posted by: admin - 09-27-2024, 02:36 AM - Forum: B16M - No Replies

Code:
/*
* Made by KinCony IoT: https://www.kincony.com
*
* This Arduino program implements communication between ESP32 and the Tuya module
* via UART (serial communication). It listens for specific packets from the Tuya module
* and responds according to the predefined commands.
*
* Functionality:
* 1. When the ESP32 receives a heartbeat packet (55 AA 00 00 00 00 FF),
*    it sends a heartbeat response (55 AA 03 00 00 01 00 03).
* 2. When the ESP32 receives a product information request (55 AA 00 01 00 00 00),
*    it sends a product information response (55 AA 03 01 ...).
* 3. When the ESP32 receives a work mode request (55 AA 00 02 00 00 01),
*    it sends a work mode response (55 AA 03 02 00 03 10 1C 14 47).
* 4. When the ESP32 receives a network status request (55 AA 00 03 00 01 00 03),
*    it sends a network status response (55 AA 03 03 00 00 05).
* 5. Subsequent heartbeat packets (55 AA 00 00 00 00 FF) are responded to with
*    (55 AA 03 00 00 01 01 04).
*/

#include <HardwareSerial.h>

// Create a HardwareSerial object for UART communication on ESP32
HardwareSerial tuyaSerial(1);

// Define the GPIO pins for TXD and RXD used for serial communication
#define TXD_PIN 16
#define RXD_PIN 17

// Set the baud rate for Tuya module communication to 9600
#define BAUD_RATE 9600

// Define the response packets for different commands from the Tuya module

// Heartbeat response: 55 AA 03 00 00 01 00 03
uint8_t heartBeatResponse[] = {0x55, 0xAA, 0x03, 0x00, 0x00, 0x01, 0x00, 0x03};

// Product info response with a detailed payload (e.g., firmware version, product name, etc.)
uint8_t productInfoResponse[] = {
  0x55, 0xAA, 0x03, 0x01, 0x00, 0x2A, 0x7B, 0x22, 0x70, 0x22, 0x3A, 0x22,
  0x63, 0x68, 0x6D, 0x7A, 0x6C, 0x67, 0x6A, 0x70, 0x61, 0x64, 0x70, 0x71,
  0x78, 0x64, 0x6B, 0x6F, 0x22, 0x2C, 0x22, 0x76, 0x22, 0x3A, 0x22, 0x31,
  0x2E, 0x30, 0x2E, 0x30, 0x22, 0x2C, 0x22, 0x6D, 0x22, 0x3A, 0x30, 0x7D, 0xAA
};

// Work mode response: 55 AA 03 02 00 03 10 1C 14 47
uint8_t workModeResponse[] = {0x55, 0xAA, 0x03, 0x02, 0x00, 0x03, 0x10, 0x1C, 0x14, 0x47};

// Network status response: 55 AA 03 03 00 00 05
uint8_t netStatusResponse[] = {0x55, 0xAA, 0x03, 0x03, 0x00, 0x00, 0x05};

// Subsequent heartbeat response: 55 AA 03 00 00 01 01 04
uint8_t secondHeartBeatResponse[] = {0x55, 0xAA, 0x03, 0x00, 0x00, 0x01, 0x01, 0x04};

void setup() {
  // Initialize the serial communication for debugging at 115200 baud rate
  Serial.begin(115200);

  // Initialize the serial communication with Tuya module at 9600 baud rate
  tuyaSerial.begin(BAUD_RATE, SERIAL_8N1, RXD_PIN, TXD_PIN);

  // Debug message to indicate that the serial communication has been initialized
  Serial.println("ESP32-Tuya serial communication initialized.");
}

void loop() {
  // Check if data is available from the Tuya module
  if (tuyaSerial.available()) {
    uint8_t incomingPacket[7];  // Array to store the received packet
    size_t bytesRead = tuyaSerial.readBytes(incomingPacket, 7); // Read 7 bytes from Tuya

    // Check if the packet has a valid header (0x55, 0xAA)
    if (bytesRead >= 2 && incomingPacket[0] == 0x55 && incomingPacket[1] == 0xAA) {
      // If less than 7 bytes were received, wait for more data
      if (bytesRead < 7) {
        Serial.println("Incomplete packet received. Waiting for remaining bytes...");
        delay(50); // Delay to allow more data to be received
        while (tuyaSerial.available()) {
          incomingPacket[bytesRead++] = tuyaSerial.read(); // Continue reading remaining bytes
          if (bytesRead >= 7) break;
        }
      }

      // If still less than 7 bytes, discard the incomplete packet
      if (bytesRead < 7) {
        Serial.println("Error: Incomplete packet discarded.");
        return;
      }

      // Debug: Print the received packet for logging
      Serial.print("Received packet: ");
      for (size_t i = 0; i < 7; i++) {
        Serial.print(incomingPacket[i], HEX);
        Serial.print(" ");
      }
      Serial.println();

      // Call the function to process the received packet
      processTuyaPacket(incomingPacket, 7);

    } else {
      // If the header is invalid, discard the packet and flush the buffer
      Serial.print("Error: Invalid packet header. Data received: ");
      for (size_t i = 0; i < bytesRead; i++) {
        Serial.print(incomingPacket[i], HEX);
        Serial.print(" ");
      }
      Serial.println();
      tuyaSerial.flush(); // Clear the serial buffer
    }
  }

  // Delay to avoid CPU overuse
  delay(100);
}

// Function to process the received packet and send the appropriate response
void processTuyaPacket(uint8_t* packet, size_t size) {
  // Ensure the packet size is 7 and the header is valid
  if (size == 7 && packet[0] == 0x55 && packet[1] == 0xAA) {
    // Determine the command in the packet (packet[2])
    switch(packet[2]) {
      case 0x00:
        if (packet[3] == 0x00 && packet[4] == 0x00 && packet[5] == 0x00 && packet[6] == 0xFF) {
          Serial.println("Heartbeat received.");
          sendPacket(heartBeatResponse, sizeof(heartBeatResponse));
        } else if (packet[3] == 0x01 && packet[4] == 0x00 && packet[5] == 0x00 && packet[6] == 0x00) {
          Serial.println("Product info request received.");
          sendPacket(productInfoResponse, sizeof(productInfoResponse));
        } else if (packet[3] == 0x02 && packet[4] == 0x00 && packet[5] == 0x00 && packet[6] == 0x01) {
          Serial.println("Work mode request received.");
          sendPacket(workModeResponse, sizeof(workModeResponse));
        } else if (packet[3] == 0x03 && packet[4] == 0x00 && packet[5] == 0x01 && packet[6] == 0x00) {
          Serial.println("Network status request received.");
          sendPacket(netStatusResponse, sizeof(netStatusResponse));
        }
        break;

      default:
        Serial.println("Error: Unhandled command received.");
        break;
    }
  }
}

// Function to send the response packet to the Tuya module
void sendPacket(uint8_t* packet, size_t size) {
  // Send the packet via UART to Tuya module
  tuyaSerial.write(packet, size);

  // Debug: Print the sent packet for logging
  Serial.print("Sent packet: ");
  for (size_t i = 0; i < size; i++) {
    Serial.print(packet[i], HEX);
    Serial.print(" ");
  }
  Serial.println();
}
arduino ino file download: 
.zip   9-tuya-wifi-config.zip (Size: 2 KB / Downloads: 423)
BIN file (you can use esp32 download tool download to ESP32-S3 with address 0x0 then directly to use) download:
.zip   9-tuya-wifi-config.ino.merged.zip (Size: 185.16 KB / Downloads: 399)

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  [arduino code examples for B16M]-08 Ethernet W5500 chip work with TCP Server mode
Posted by: admin - 09-27-2024, 02:33 AM - Forum: B16M - No Replies

Code:
/*
* Made by KinCony IoT: https://www.kincony.com
*
* This Arduino program sets up an ESP32-S3 with a W5500 Ethernet module
* as a TCP server. It listens on port 4196 and echoes back any string
* received from a client.
*
* Hardware connections:
* - CLK: GPIO42
* - MOSI: GPIO43
* - MISO: GPIO44
* - CS: GPIO41
* - RST: GPIO1
* - INT: GPIO2
*
* Static IP address: 192.168.3.55
* Subnet Mask: 255.255.255.0
* Gateway: 192.168.3.1
* DNS: 192.168.3.1
*/

#include <SPI.h>
#include <Ethernet.h>

// Define the W5500 Ethernet module pins
#define W5500_CS_PIN  41
#define W5500_RST_PIN 1
#define W5500_INT_PIN 2
#define W5500_CLK_PIN 42
#define W5500_MOSI_PIN 43
#define W5500_MISO_PIN 44

// MAC address for your Ethernet shield (must be unique on your network)
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };

// Static IP address configuration
IPAddress ip(192, 168, 3, 55);       // Static IP address
IPAddress subnet(255, 255, 255, 0);   // Subnet mask
IPAddress gateway(192, 168, 3, 1);    // Default gateway
IPAddress dns(192, 168, 3, 1);        // DNS server address

// Create an EthernetServer object to handle TCP connections
EthernetServer server(4196);

void setup() {
  // Initialize serial communication
  Serial.begin(115200);
  while (!Serial) {
    ; // Wait for serial port to connect
  }

  // Initialize the W5500 module
  pinMode(W5500_RST_PIN, OUTPUT);
  pinMode(W5500_INT_PIN, INPUT);
  digitalWrite(W5500_RST_PIN, LOW);  // Reset the W5500 module
  delay(100);                       // Wait for reset to complete
  digitalWrite(W5500_RST_PIN, HIGH); // Release reset

  // Initialize SPI with the correct pin definitions
  SPI.begin(W5500_CLK_PIN, W5500_MISO_PIN, W5500_MOSI_PIN);

  // Set up the Ethernet library with W5500-specific pins
  Ethernet.init(W5500_CS_PIN);

  // Start the Ethernet connection with static IP configuration
  Ethernet.begin(mac, ip, dns, gateway, subnet);

  // Print the IP address to the serial monitor
  Serial.print("IP Address: ");
  Serial.println(Ethernet.localIP());

  // Start listening for incoming TCP connections
  server.begin();
}

void loop() {
  // Check for incoming client connections
  EthernetClient client = server.available();
  if (client) {
    Serial.println("New client connected");

    // Read data from the client and echo it back
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();
        server.write(c);
      }
    }

    // Close the connection when done
    client.stop();
    Serial.println("Client disconnected");
  }
}
arduino ino file download: 
.zip   8-Ethernet-W5500.zip (Size: 1.23 KB / Downloads: 405)
BIN file (you can use esp32 download tool download to ESP32-S3 with address 0x0 then directly to use) download: 
.zip   8-Ethernet-W5500.ino.merged.zip (Size: 186.83 KB / Downloads: 381)

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  [arduino code examples for B16M]-07 how to DS3231 RTC clock
Posted by: admin - 09-27-2024, 02:32 AM - Forum: B16M - No Replies

Code:
/*
* Made by KinCony IoT: https://www.kincony.com
*
* DS3231 RTC with Arduino
*
* This program demonstrates how to use the DS3231 RTC (Real-Time Clock) module with the Arduino.
* It includes functionality to:
* - Initialize the DS3231 RTC module
* - Read the current date and time from the RTC
* - Set the RTC time based on a serial command:Command format: DYYYY-MM-DDTHH:MM:SS
*    Set date and time command example: D2024-09-19T11:50:22
*    print current date and time command: current time
*
*
* Hardware Connections:
* - SDA: GPIO 38
* - SCL: GPIO 39
*/

#include <DS3231.h>
#include <Wire.h>

String serial_cmd_rcv = ""; // Serial port receiver

typedef struct
{
  byte year;    // Last two digits of the year, library adds 2000.
  byte month;
  byte day;
  byte hour;
  byte minute;
  byte second;
} MY_DATE_STR;

MY_DATE_STR my_date_str = {0};

// Define constants for relay control
#define OPEN_RLY_DATA    26
#define OPEN_RLY_MONTH   4
#define CLOSE_RLY_DATA   2
#define CLOSE_RLY_MONTH  5

// Define pin connections
#define SDA_PIN   38
#define SCL_PIN   39

DS3231 rtc; // Create an instance of the DS3231 RTC
bool h12Flag;
bool pmFlag;
static bool bCentury = false;
static bool old_level_high = false;
static bool old_level_low = false;


/**
* @brief Print the current time from the RTC to the Serial Monitor.
*/
static void PrintfCurTime()
{
  Serial.print("Current time is: ");
  int year = rtc.getYear() + 2000;
  Serial.print(year);
  Serial.print("-");

  Serial.print(rtc.getMonth(bCentury), DEC);
  Serial.print("-");

  Serial.print(rtc.getDate(), DEC);
  Serial.print(" ");

  Serial.print(rtc.getHour(h12Flag, pmFlag), DEC);
  Serial.print(":");
  Serial.print(rtc.getMinute(), DEC);
  Serial.print(":");
  Serial.println(rtc.getSecond(), DEC);
}

/**
* @brief Process serial commands to set the RTC time.
* Command format: DYYYY-MM-DDTHH:MM:SS
*/
static void GetSerialCmd()
{
  if (Serial.available() > 0)
  {
    delay(100);
    int num_read = Serial.available();
    while (num_read--)
      serial_cmd_rcv += char(Serial.read());
  }
  else return;

  serial_cmd_rcv.trim();

  if (serial_cmd_rcv == "current time")
  {
    PrintfCurTime();
    serial_cmd_rcv = "";
    return;
  }

  Serial.print("Received length: ");
  Serial.println(serial_cmd_rcv.length());

  int indexof_d = serial_cmd_rcv.indexOf('D');
  int indexof_t = serial_cmd_rcv.indexOf('T');

  Serial.print("D index: ");
  Serial.print(indexof_d);
  Serial.print(" T index: ");
  Serial.println(indexof_t);

  if (serial_cmd_rcv.length() != 20 ||
      serial_cmd_rcv.substring(0, 1) != "D" ||
      serial_cmd_rcv.substring(11, 12) != "T") 
  {
    Serial.println(serial_cmd_rcv);
    serial_cmd_rcv = "";
    return;
  }

  Serial.println("Setting time...");

  my_date_str.year = (byte)serial_cmd_rcv.substring(3, 5).toInt();
  my_date_str.month = (byte)serial_cmd_rcv.substring(6, 8).toInt();
  my_date_str.day = (byte)serial_cmd_rcv.substring(9, 11).toInt();
  my_date_str.hour = (byte)serial_cmd_rcv.substring(12, 14).toInt();
  my_date_str.minute = (byte)serial_cmd_rcv.substring(15, 17).toInt();
  my_date_str.second = (byte)serial_cmd_rcv.substring(18).toInt();

  rtc.setYear(my_date_str.year);
  rtc.setMonth(my_date_str.month);
  rtc.setDate(my_date_str.day);
  rtc.setHour(my_date_str.hour);
  rtc.setMinute(my_date_str.minute);
  rtc.setSecond(my_date_str.second);

  serial_cmd_rcv = "";

  Serial.println("Time set.");
}

void setup() {
  // Initialize the I2C interface
  Wire.begin(SDA_PIN, SCL_PIN, 40000);
 
  // Initialize Serial communication
  Serial.begin(115200);
   
  // Set the RTC to 24-hour mode
  rtc.setClockMode(false); // 24-hour format

  // Print current time to Serial Monitor
  PrintfCurTime();

  // Clear any remaining serial data
  while (Serial.read() >= 0) {}
}

void loop() {
  // Process incoming serial commands
  GetSerialCmd();
  delay(1000); // Delay for 1 second
}
arduino ino file download: 
.zip   7-DS3231-RTC.zip (Size: 1.56 KB / Downloads: 406)
BIN file (you can use esp32 download tool download to ESP32-S3 with address 0x0 then directly to use) download: 
.zip   7-DS3231-RTC.ino.merged.zip (Size: 191.38 KB / Downloads: 396)

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