This project presents the design and implementation of a smart energy monitoring system based on the Raspberry Pi Pico W with IoT integration. The system is developed to measure, monitor, and analyze the electrical energy consumed by multiple loads individually as well as collectively. Three separate loads are connected to the system, each controlled through switches and monitored using current transformers (CT sensors), enabling precise current measurement for each load. The acquired current data is processed by the microcontroller to calculate power and energy consumption in kilowatt-hours (kWh) for each load independently. In addition to individual readings, the system computes the total energy consumed by all loads combined. A regulated power supply ensures stable operation of the controller and associated components. For user interaction, a 20×4 LCD display provides real-time visualization of voltage, current, individual energy consumption, and total energy usage. Furthermore, the integration of IoT technology through the ThingSpeak platform enables remote monitoring and data logging. Users can access energy consumption data from anywhere, facilitating better energy management and analysis. This system is highly beneficial for residential, commercial, and industrial applications where monitoring multiple loads is essential. It promotes energy efficiency by providing detailed insights into consumption patterns, helping users identify high-energy-consuming devices and optimize their usage.          

Main Objectives of the project:

  To build an energy meter using the Raspberry Pi Pico W.

  To measure energy used by three different loads separately.

  To show individual energy consumption of each load.

  To calculate and display total energy consumption.

  To display readings on a 20×4 LCD screen.

  To send data to the cloud using ThingSpeak.

  To monitor energy usage from anywhere using IoT.

  To help users save energy by understanding usage.          

The major building blocks of this project are:

• Regulate power supply
• Raspberry Pi Pico W.
• Three Loads (choke, bulb, socket)
• Three Switches.
• Three CTs.
• 20*4 LCD display.

        Software’s used:

1. THONNY PYTHON IDE programmer.
2. Micro Python language.
3. Express SCH for Circuit Design.

       

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