12V adjustable time delay relay module

/*
 * ==================================================================
 *  Generated by Codey.online  —  https://www.codey.online
 * ==================================================================
 *  Project   : Adjustable Timer Delay Relay Trigger
 *  Board     : Arduino UNO (arduino:avr:uno)
 *  Parts     : DC 12V adjustable timer delay, time delay relay turn off switch module time relay time switch 0~25sec for smart home, automatic control
 *  Libraries : none (built-in)
 *
 *  Codey Online is an AI-powered browser IDE for Arduino and ESP32.
 *  Describe your project and Codey writes the code, draws the wiring
 *  diagram and uploads it to your board, straight from the browser.
 *  This code is free to use, modify and share, without warranty.
 * ==================================================================
 */

// Timer Delay Relay Module Demo
// Sends a trigger pulse to start the module's countdown delay.

const int triggerPin = 4;

void setup() {
  pinMode(triggerPin, OUTPUT);
  digitalWrite(triggerPin, LOW);

  Serial.begin(115200);
  Serial.println(F("Timer Delay Relay Demo Initialized."));
}

void loop() {
  Serial.println(F("Triggering relay delay cycle..."));
  
  // Send a 200 ms HIGH pulse to trigger the module
  digitalWrite(triggerPin, HIGH);
  delay(200);
  digitalWrite(triggerPin, LOW);
  
  Serial.println(F("Trigger sent. Waiting for delay cycle to complete..."));
  
  // Wait 10 seconds before triggering the next cycle
  delay(10000);
}

/*
 * ==================================================================
 *  Generated by Codey.online  —  https://www.codey.online
 * ==================================================================
 *  Project   : Trigger 12V Adjustable Timer Delay Relay
 *  Board     : ESP32 DEVKIT V1 (esp32:esp32:esp32doit-devkit-v1)
 *  Parts     : DC 12V adjustable timer delay, time delay relay turn off switch module time relay time switch 0~25sec for smart home, automatic control
 *  Libraries : none (built-in)
 *
 *  Codey Online is an AI-powered browser IDE for Arduino and ESP32.
 *  Describe your project and Codey writes the code, draws the wiring
 *  diagram and uploads it to your board, straight from the browser.
 *  This code is free to use, modify and share, without warranty.
 * ==================================================================
 */

// Pin connected to the IN trigger pin of the timer relay module
const int TRIGGER_PIN = 4;

void setup() {
  Serial.begin(115200);
  pinMode(TRIGGER_PIN, OUTPUT);
  digitalWrite(TRIGGER_PIN, LOW);
  
  Serial.println("ESP32 12V Timer Delay Relay Module Initialized");
  delay(1000);
}

void loop() {
  Serial.println("Sending trigger pulse...");
  
  // Send a 200 ms pulse to activate the timer
  digitalWrite(TRIGGER_PIN, HIGH);
  delay(200);
  digitalWrite(TRIGGER_PIN, LOW);
  
  Serial.println("Triggered! The relay will remain active for the duration set by the potentiometer.");
  
  // Wait 15 seconds before triggering the next cycle
  delay(15000);
}