Prepaid Energy Meter Using GSM and Arduino – Description

The Prepaid Energy Meter using GSM and Arduino is an advanced electricity billing system that allows users to recharge their energy balance before consumption. This system automates electricity billing, eliminates manual meter reading, and provides real-time consumption updates via GSM communication.

Key Components and Working:

1. Arduino Microcontroller – Acts as the brain of the system, processing user inputs and controlling energy flow.
2. Energy Meter (Digital/Analog) – Measures real-time electricity consumption.
3. GSM Module (SIM800/900) – Sends and receives SMS alerts regarding balance status and usage.
4. Relay Module – Automatically disconnects power when the balance is exhausted.
5. LCD Display – Shows the remaining balance, power usage, and alerts.
6. Recharge Mechanism – Users can recharge their balance via SMS or mobile app.
7. Current and Voltage Sensors – Monitor power consumption and send data to the Arduino.

How It Works:

• The user recharges their meter by sending a predefined SMS to the GSM module.
• The system deducts energy charges based on consumption, updating the balance in real-time.
• When the balance is low, an alert is sent via SMS to the user.
• If the balance reaches zero, the relay disconnects the power supply automatically.
• Users can check their remaining balance and usage history via SMS.

Advantages:

✅ Eliminates manual meter reading and human errors in billing.
✅ Prevents unauthorized electricity usage and power theft.
✅ Real-time tracking of power consumption via mobile notifications.
✅ Encourages energy conservation by allowing users to monitor usage.

Applications:

• Household electricity billing automation.
• Industrial and commercial energy management.
• Smart grid integration for efficient power distribution.

This project is a cost-effective, user-friendly, and efficient solution for modern electricity billing systems. Would you like help with the circuit diagram or coding for this project? 🚀