Smart Energy Meter Project Kit

Project Components

Microcontroller: ESP32
Display: OLED (e.g., 128x64 I2C-based display)
App Interface: Blynk App
Voltage Sensor: ZMPT101B or equivalent
Current Sensor: ACS712 or INA219
Relay Module: To control power (e.g., 5V relay module)
Additional Modules:
- Wi-Fi connectivity
- Power supply (e.g., 5V DC)

Features

Real-time Monitoring: Display voltage, current, and power usage on the OLED and Blynk app.
Billing System: Calculate power consumption in kWh and generate bills at 5-minute intervals.
Power Cut-off: Automatically cut power if payment isn’t made within 2 minutes.
IoT Integration: Enable remote monitoring and control via the Blynk app.

System Workflow

Initialization:
- Configure ESP32 to connect to Wi-Fi and Blynk.
- Initialize the OLED and sensors (voltage and current).
Data Acquisition:
- Measure AC voltage using the ZMPT101B sensor.
- Measure AC current using the ACS712 or INA219 sensor.
- Calculate power = Voltage x Current.
Display Data:
- Show voltage, current, and power on the OLED.
- Send the same data to the Blynk app.
Bill Calculation:
- Calculate power consumption every 5 minutes (integrate power over time to get energy in kWh).
- Estimate the cost based on predefined rates.
Power Cut-off Logic:
- Send a payment notification to the Blynk app when the bill is due.
- Wait for 2 minutes for confirmation from the app.
- If no payment is received, activate the relay to cut power.

Circuit Diagram

Connections:
- ESP32:
  - Voltage sensor (analog input)
  - Current sensor (analog input)
  - Relay control pin (digital output)
- OLED:
  - SDA, SCL to I2C pins on ESP32
- Blynk:
  - Configure via Wi-Fi.
Relay:
- Controlled by an ESP32 GPIO pin.
- Connected to the load to manage power supply.

Software Development

Libraries:
- Blynk Library for app integration.
- Adafruit SSD1306 for OLED.
- Sensor-specific libraries for ZMPT101B and ACS712.
Steps:
- Setup:
  - Include necessary libraries and initialize components.
- Wi-Fi and Blynk:
  - Connect ESP32 to Wi-Fi and authenticate with the Blynk app.
- Data Processing:
  - Read and calibrate sensor data.
  - Compute voltage, current, and power.
- Billing Logic:
  - Track energy consumption.
  - Trigger payment alerts via Blynk notifications.
- Relay Control:
  - Cut power if payment isn’t confirmed.

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Full Name:	Smart Energy Meter Project Kit
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Aarumuga Koundanpudur

Short Description

Real-time Monitoring: Display voltage, current, and power usage on the OLED and Blynk app. Billing System: Calculate power consumption in kWh and generate bills at 5-minute intervals. Power Cut-off: Automatically cut power if payment isn’t made within 2 minutes. IoT Integration: Enable remote monitoring and control via the Blynk app.

Smart Energy Meter Project Kit Specification Buy Online/ Vist Shop Kuniyamuthur

Product Specification:

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Smart Energy Meter Project Kit InterState Online Buying Price Tamil Nadu MRP: 8000

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