ESP32 Power Monitor & Control IoT Units
Single-Phase and Three-Phase Energy Monitoring for Industrial IoT, EV Charging & Smart Automation and many more.
Power monitoring is a critical requirement in modern IoT systems. Whether you are developing an EV charging station, building an industrial automation system, or designing a smart energy management solution, you need reliable and accurate power measurement hardware.
The ThingsInNet ESP32 Power Monitor & Control IoT Units are production-ready energy monitoring platforms available in:
- Single-Phase Power Monitoring Version <Link>
- Three-Phase Power Monitoring Version <Link>
Both units are designed for engineers, developers, researchers, and industrial system integrators who need a flexible and scalable ESP32-based power monitoring solution.
Why Power Monitoring Is Essential in IoT Systems
An IoT energy monitoring system enables you to measure and control:
- Voltage
- Current
- Active power
- Energy consumption (kWh)
- Load status
- System efficiency
With real-time data, you can:
- Optimize energy usage
- Implement smart billing systems
- Monitor EV charging loads
- Detect overload and fault conditions
- Enable remote switching and automation
- Build intelligent energy analytics platforms
However, power monitoring requires hardware specifically designed for electrical measurement and control, not just a generic development board.
ESP32-Based Power Monitoring Architecture
Both the Single-Phase and Three-Phase IoT Units are built on the powerful ESP32-WROOM-32D microcontroller, offering:
- Integrated Wi-Fi and Bluetooth
- 16MB Flash memory
- High-performance dual-core processing
- Industrial operating temperature (-40°C to 85°C)
The units also include:
- Integrated PZEM-004T v4 power measurement modules
- On-board AC relay control (250V/10A, 600W safe switching)
- 2.42” OLED display for real-time visualization
- USB Type-C programming interface
- 9–24V external power input
- Resettable fuse for protection
- Expandable GPIO headers (GPIO27, 26, 33, 32)
This architecture makes the platform ideal for both IoT prototyping and production-ready deployments.
Single-Phase ESP32 Power Monitor IoT Unit
The Single-Phase Power Monitoring IoT Unit is a compact and powerful solution for measuring and controlling single-phase AC systems.
Key Features:
- 1 × PZEM-004T v4 energy measurement module
- Current Transformer input (up to 100A)
- Real-time voltage, current, power and energy measurement
- On-board AC relay for load switching
- OLED display for live data feedback
- Wi-Fi-enabled ESP32 for cloud integration
Best Use Cases:
- Smart energy meters
- Residential energy monitoring systems
- Solar inverter monitoring
- Smart switch development
- EV charging prototype hardware
- University research projects
- IoT-based automation systems
If you are building a smart home energy system or developing an EV charger prototype, the single-phase ESP32 power monitor offers a reliable hardware foundation.
Three-Phase ESP32 Power Monitoring System
The Three-Phase Power Monitor & Control IoT Unit is designed for industrial and commercial applications where multi-phase measurement is required.
Key Features:
- 3 × PZEM-004T v4 modules (L1, L2, L3 measurement)
- Three independent Current Transformer inputs
- Three-phase voltage, current, power and energy monitoring
- On-board relay for controlled switching
- OLED real-time visualization
- ESP32 cloud-ready connectivity
Ideal Applications:
- Industrial IoT power monitoring systems
- Factory energy management
- Three-phase EV charging stations
- Smart grid research
- Commercial building automation
- Industrial automation control systems
This makes it a powerful development board for engineers working with three-phase electrical infrastructure.
Flexible Cloud Integration & Firmware Control
Unlike proprietary IoT platforms, the ThingsInNet Power Monitoring Units are firmware independent.
You can:
- Connect to Firebase
- Use MQTT brokers
- Deploy to AWS or Azure
- Build custom REST APIs
- Integrate with SCADA systems
- Implement edge AI processing
Because the system is based on ESP32, developers have full control over:
- Firmware architecture
- Data processing
- Cloud selection
- Security implementation
This makes it an ideal ESP32 energy meter development platform for serious IoT engineers.
From IoT Prototype to Production Deployment
One of the biggest challenges in IoT product development is transitioning from breadboard prototypes to reliable hardware.
These power monitoring units bridge that gap with:
- Professionally designed dual-layer PCB
- Industrial-grade connectors
- Over-current protection
- Stable power management
- Clean expansion interfaces
Instead of redesigning hardware from scratch, developers can build directly on a stable platform.
Who Should Use These ESP32 Power Monitoring Units?
These IoT power monitoring systems are designed for:
- Embedded systems engineers
- EV charging hardware developers
- Industrial automation integrators
- Energy analytics startups
- University research labs
- Smart building solution providers
- R&D teams developing IoT energy devices
If your project involves real electrical systems, these units provide the hardware reliability you need.
Conclusion: A Scalable IoT Energy Monitoring Platform
Whether you need:
- A single-phase ESP32 energy monitoring solution
- A three-phase industrial IoT power monitoring system
- EV charging prototype hardware
- A development board for energy analytics
The ThingsInNet ESP32 Power Monitor & Control Units provide a scalable, flexible, and production-ready platform.
They are not just development boards.
They are hardware foundations for serious IoT energy applications.