DC-DC High Power Adjustable Step-up Module 3.0~35V to 3.5~35V 100W with Digital Display Voltmeter

/*
 * ==================================================================
 *  Generated by Codey.online  —  https://www.codey.online
 * ==================================================================
 *  Project   : Step-Up Boost Module Voltage Monitor
 *  Board     : Arduino UNO (arduino:avr:uno)
 *  Parts     : DC-DC High Power Adjustable Step-up Module 3.0~35V to 3.5~35V 100W with Digital Display Voltmeter
 *  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.
 * ==================================================================
 */

// DC-DC Boost Module Voltage Monitor

const int voltagePin = A0;

void setup() {
  Serial.begin(115200);
  Serial.println(F("DC-DC Boost Module Voltage Monitor Initialized"));
}

void loop() {
  int rawValue = analogRead(voltagePin);
  float voltage = rawValue * (5.0 / 1023.0);

  Serial.print(F("Raw ADC: "));
  Serial.print(rawValue);
  Serial.print(F(" | Module Voltage: "));
  Serial.print(voltage, 2);
  Serial.println(F(" V"));

  delay(1000);
}

/*
 * ==================================================================
 *  Generated by Codey.online  —  https://www.codey.online
 * ==================================================================
 *  Project   : Powering ESP32 with High-Power DC-DC Step-Up Module
 *  Board     : ESP32 DEVKIT V1 (esp32:esp32:esp32doit-devkit-v1)
 *  Parts     : DC-DC High Power Adjustable Step-up Module 3.0~35V to 3.5~35V 100W with Digital Display Voltmeter
 *  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.
 * ==================================================================
 */

// Demonstration of ESP32 powered via DC-DC Step-Up Module
// Ensure output voltage is set to 5.0V using the onboard trimmer before connecting.

const int LED_PIN = 2; // Onboard LED on ESP32 DevKit V1
int uptimeSeconds = 0;

void setup() {
  Serial.begin(115200);
  delay(1000);
  
  pinMode(LED_PIN, OUTPUT);
  
  Serial.println("========================================");
  Serial.println("ESP32 Powered by DC-DC Boost Converter");
  Serial.println("========================================");
}

void loop() {
  // Turn on LED
  digitalWrite(LED_PIN, HIGH);
  delay(500);
  
  // Turn off LED
  digitalWrite(LED_PIN, LOW);
  delay(500);
  
  uptimeSeconds++;
  Serial.print("System running on boosted power. Uptime: ");
  Serial.print(uptimeSeconds);
  Serial.println(" s");
}