Importance and usefulness of Power Monitoring

Power monitoring is a crucial aspect in various applications, such as energy management, home automation, and industrial control systems. By monitoring power consumption, we can gain insights into energy usage patterns, identify potential energy-saving opportunities, and ensure the efficient operation of electrical systems. With the help of Arduino, we can easily implement power monitoring solutions that are cost-effective and customizable to specific requirements.

Project: Power Monitoring System

In this project, we will create a power monitoring system using Arduino. The objective is to measure and analyze the power consumption of an electrical device in real-time. The system will display the power usage data on an LCD screen and provide the ability to log the data for further analysis.

List of components:

• Arduino Uno: 1x (https://www.arduino.cc/en/Main/ArduinoBoardUno)
• Current Sensor Module: 1x (https://www.sparkfun.com/products/11005)
• Voltage Sensor Module: 1x (https://www.sparkfun.com/products/9378)
• LCD Display: 1x (https://www.adafruit.com/product/181)
• Jumper Wires: As required for connections

Examples:

1. Reading Current and Voltage:

   
   #include <Wire.h>
   #include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

int currentPin = A0; int voltagePin = A1;

void setup() { lcd.begin(16, 2); lcd.print("Power Monitoring"); delay(2000); lcd.clear(); }

void loop() { float current = analogRead(currentPin) (5.0 / 1023.0) / 0.066; float voltage = analogRead(voltagePin) (5.0 / 1023.0) * 5.0;

lcd.setCursor(0, 0); lcd.print("Current: "); lcd.print(current); lcd.print(" A");

lcd.setCursor(0, 1); lcd.print("Voltage: "); lcd.print(voltage); lcd.print(" V");

delay(1000); }

Explanation: This code reads the current and voltage values from the respective analog pins of Arduino. It then calculates the actual current and voltage using appropriate conversion factors. The values are displayed on the LCD screen.

2. Power Calculation:
```cpp
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

int currentPin = A0;
int voltagePin = A1;

void setup() {
  lcd.begin(16, 2);
  lcd.print("Power Monitoring");
  delay(2000);
  lcd.clear();
}

void loop() {
  float current = analogRead(currentPin) * (5.0 / 1023.0) / 0.066;
  float voltage = analogRead(voltagePin) * (5.0 / 1023.0) * 5.0;

  float power = current * voltage;

  lcd.setCursor(0, 0);
  lcd.print("Power: ");
  lcd.print(power);
  lcd.print(" W");

  delay(1000);
}

Explanation: This code extends the previous example by calculating the power consumption by multiplying the current and voltage values. The power value is then displayed on the LCD screen.