Briefly introduce the concept of power management and the importance of monitoring and controlling energy consumption.
State the project’s objective: To design a system using Arduino Uno that monitors real-time power consumption, displays data on an LCD, provides overload protection using a relay module, and allows for manual reset.

Arduino Uno: A microcontroller board that serves as the central processing unit for the system. It reads data from the PZEM-004T module, controls the LCD display, and operates the relay module.
LCD (Liquid Crystal Display): Provides a visual interface to display real-time power consumption data (voltage, current, power) received from the PZEM-004T module.
Relay Module: An electronically controlled switch that turns on or off the AC load based on the overload condition determined by the Arduino.
SMPS (Switching Mode Power Supply): Provides regulated DC power to the Arduino Uno and other components.
PZEM-004T Module: A current and voltage sensor module that communicates with the Arduino via serial communication to provide real-time power consumption data.
Energy Meter: While not directly used in this project, it can be a valuable tool for verifying the accuracy of the PZEM-004T readings or for additional power consumption monitoring purposes.
Variable Resistor (Potentiometer): Allows the user to adjust the overload trigger value between 0 and 500 watts, enabling customization based on the desired load limit.
Push Switch: A momentary switch used to manually reset the system to normal operation after an overload event.

Provide a clear and concise schematic diagram or table illustrating the connections between all components, including pin assignments for the Arduino Uno. Refer to the datasheets of each component for specific connection details.
Briefly explain the purpose of each connection (e.g., power supply, serial communication, relay control, etc.).
Emphasize safety precautions when working with AC mains voltage. Ensure proper insulation and grounding techniques are followed.

Arduino Code: Describe the logic behind the Arduino code, highlighting key functions:
Serial communication: Establish serial communication between the Arduino and the PZEM-004T module using the appropriate libraries or code examples.
Data parsing: Extract relevant power consumption data (voltage, current, power) from the received serial data using appropriate data structures and parsing techniques.
LCD control: Utilize the LCD library to display the extracted power consumption data on the LCD in a user-friendly format.
Overload detection: Continuously monitor the current value and compare it to the user-defined overload trigger value set by the variable resistor. If the current exceeds the trigger, activate the overload protection routine.
Relay control: When overload is detected, activate the relay module to disconnect the AC load, preventing potential damage.
Manual reset: Implement functionality using the push switch to reset the system to normal operation after an overload event. The relay is deactivated, and the system resumes monitoring power consumption.

Code Optimization: Discuss any code optimization techniques employed to improve efficiency or readability, such as using appropriate data types, avoiding unnecessary calculations, or structuring code for clarity.

Outline the testing procedures to ensure the system functions as intended:
Basic functionality: Verify serial communication, data display on the LCD, and manual reset operation.
Overload protection: Test the system’s response to increasing current loads, ensuring the relay triggers at the desired overload threshold and disconnects the AC load appropriately.
Accuracy: If possible, compare the PZEM-004T readings with a reference energy meter or other reliable measurement tool to assess accuracy. Consider potential calibration steps if necessary.

Present the results of the testing and calibration process, including observations of system behavior and any adjustments made.
Discuss the project’s success in achieving its objectives.
Identify any limitations or areas for improvement, such as limitations of the PZEM-004T module’s accuracy or potential enhancements to the code or hardware design.

Summarize the key takeaways from the project.
Briefly highlight the project’s potential applications in real-world scenarios, such as home energy management, industrial process control, or protecting sensitive equipment from overload.
Suggest future improvements or extensions to the project