SMART-ENERGY-METER

Overview

This project involves designing a Smart Energy Meter using an STM32F401CCU6 microcontroller. The device monitors real-time power consumption by measuring current and voltage using connected sensors. The readings are processed and displayed on an LCD, providing a user-friendly way to track energy usage.

Problem Statement

Create a system that:

• Measures current and voltage from an AC main supply.
• Computes and displays power consumption using an LCD.
• Integrates features like real-time tracking, data logging, and IoT compatibility for remote monitoring.

Key Features

1. Real-Time Power Measurement: Continuously calculates power consumption based on voltage and current readings.
2. Energy Usage Calculation: Tracks cumulative energy consumption over time, displayed in watt-hours or kilowatt-hours.
3. Precision Sensing: Utilizes voltage and current sensors (ZMPT101B, ACS712) for high accuracy.
4. LCD Display: Shows real-time data, including voltage, current, and power consumption.
5. Automated Power Calculations: Processes data to compute instantaneous power using (P = V * I).

Applications

• Household or industrial energy tracking for optimized power usage.
• Automated alerts for high consumption.
• Data logging for analyzing power trends.
• Remote monitoring via IoT integration for smart home systems.

Hardware Components

• STM32F401CCU6 Microcontroller Board
• Current Sensor (ACS712 - Hall Effect): Measures current flowing through the AC line.
• Voltage Sensor (ZMPT101B): Detects AC voltage levels.
• LCD Display (16*2 - Parallel): Displays real-time values of AC voltage.
• Energy Meter IC: Ensures accurate energy measurements.
• LED: For visual power alerts.
• ST-Link: For programming and debugging.
• Breadboard and Connecting Wires: For circuit setup and prototyping.

Software Requirements

• STM32CubeIDE: Development environment for STM32.

Circuit Design

Setup and Usage

1. Connect Sensors: Attach voltage and current sensors to the STM32 ADC channels.
2. Configure LCD: Set up the LCD to display voltage, current, and power.
3. Load Code: Program the STM32 using STM32CubeIDE.
4. Run and Monitor: Observe real-time readings on the LCD, with warnings for overload conditions via LED alerts.

Results

• Without Main Supply:
  • Current (I): 0.00 A
  • Voltage (V): 0.00 V
• With Main Supply:
  • Current (I): 0.71 A
  • Voltage (V): 219.41 V

Future Enhancements

• Integration with IoT platforms for remote access.
• More advanced data logging and historical analysis.
• Mobile application interface for user-friendly monitoring.

Project by

CB.EN.U4CSE22430 PRIYADARSHINI RAJESH

CB.EN.U4CSE22432 PRAHALYAA A

CB.EN.U4CSE22431 TRISHIKA REDDY

CB.EN.U4CSE22441 INDIRA SATYA SAI

19CSE303 Embedded Systems

Department of Computer Science and Engineering

Amrita School of Computing

Amrita Vishwa Vidyapeetham, Coimbatore, India

License

This project is open-source and available for use under the MIT License.

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