Smart_Energy_Monitering_Meter

An IoT-based Smart Energy Monitoring Meter using ESP32, ZMPT101B voltage sensor, ACS712 current sensor, DHT11 temperature sensor, and an OLED display. The system measures voltage, current, power, temperature, and energy cost in real time, with cloud integration for remote monitoring and data visualization.

🧩 Features

• Real-time voltage and current measurement ⚙️
• Power and energy consumption calculation 🔋
• Temperature and humidity monitoring 🌡️
• Energy cost estimation 💰
• Cloud data visualization on ThingsBoard / Blynk / Firebase ☁️
• Wi-Fi connectivity via ESP32 🌐
• OLED display for instant on-device readings 📟
• Overload and anomaly detection ⚡

🛠️ Hardware Components

Component	Description
ESP32	Main microcontroller with Wi-Fi & Bluetooth
ZMPT101B	Voltage Sensor for AC voltage measurement
ACS712 (30A)	Current Sensor for load current measurement
DHT11 / DHT22	Temperature and Humidity Sensor
0.96" OLED Display (I2C)	For displaying real-time data
Relay Module (5V)	To control load automatically
Power Supply (5V)	To power the system
Resistors, Jumpers, and PCB	For circuit assembly

🧠 Working Principle

1. The ZMPT101B and ACS712 sensors measure voltage and current respectively.
2. The ESP32 calculates power and energy usage.
3. DHT11 adds environmental parameters for analysis.
4. Data is displayed on the OLED and sent to the cloud dashboard for visualization.
5. Relay control manages load based on thresholds.

☁️ Cloud & Connectivity

Supports:

• ThingsBoard
• Blynk IoT
• Firebase Realtime Database
• MQTT-based custom dashboards

📷 Images

👨‍💻 Developed By

Tushar Chand Gupta
Department of Electronics & Communication Engineering
Institute of Engineering & Technology, Bundelkhand University, Jhansi