EPEM ESP32-C6 ATM90E36 Ethernet Power Energy Monitor SDK
Exciting news for July/August 2025, with the advent of the powerful ESP32-C6, this new compact EPEM board is due for release

The open-source hardware scene continues to evolve, and the EPEM (Ethernet Power Energy Monitor) project by DitroniX stands out as a significant step forward in power and energy monitoring solutions. Building on the legacy of the IPEM, the EPEM elevates its capabilities by integrating crucial features, notably a strong emphasis on stable Ethernet connectivity, which can be further enhanced by considering solutions like the WIZnet W5500.
The EPEM is designed as an open-source platform for precise power and energy measurement, targeting users who require reliable and accurate data. Its commitment to wired Ethernet connectivity underscores its potential for applications where Wi-Fi might fall short in terms of stability and performance.
Core Hardware and the Importance of Ethernet
The foundation of the EPEM lies in its powerful hardware components:
- Central Processing: The ESP32-C6 microcontroller provides a versatile platform with integrated wireless capabilities.
- Precision Measurement: ATM90E32 or ATM90E36 energy monitoring ICs ensure accurate readings for various power configurations (single-phase, split-phase, etc.).
- Connectivity Focus: The inclusion of an Ethernet port is a key differentiator, offering a dependable wired network connection. This is where chips like the WIZnet W5500 can play a vital role.
Leveraging the WIZnet W5500 for Enhanced Ethernet Performance
The WIZnet W5500 is a hardwired TCP/IP embedded Ethernet controller that can significantly enhance the EPEM's network capabilities. Unlike software-based TCP/IP stacks that consume valuable microcontroller resources, the W5500 integrates the full TCP/IP stack in hardware. This offers several key advantages for the EPEM project:
- Reduced Microcontroller Load: By offloading the network processing to the W5500, the ESP32-C6 can dedicate more processing power to its core task of energy data acquisition and analysis.
- Increased Stability and Reliability: Hardware-based TCP/IP offers inherent stability and consistent performance, crucial for continuous monitoring applications.
- Improved Data Throughput: The dedicated hardware ensures efficient and fast data transmission over the Ethernet network.
- Simplified Software Development: Integrating the W5500 can simplify the software side by abstracting away the complexities of the TCP/IP stack.
While the EPEM project may currently employ other Ethernet solutions, considering the W5500 presents a compelling upgrade path for users who prioritize robustness and efficiency in their wired network connectivity.
Beyond Ethernet: Other Key Features
The EPEM's strengths extend beyond its Ethernet capabilities:
- RS-485: Enables communication with industrial devices using protocols like Modbus.
- Real-Time Clock (RTC): Provides accurate time-stamping for reliable data logging.
- Flexible Power Options: Supports low-voltage AC or DC input for versatile deployment.
- Open-Source Nature: Encourages community involvement, customization, and further development.
The Value Proposition of the EPEM
The DitroniX EPEM project, especially when considering robust Ethernet solutions like the WIZnet W5500, offers significant value:
- Dependable Energy Monitoring: Ensures accurate and stable data acquisition for effective energy management.
- Industrial and Home Applications: Suitable for a wide range of environments requiring reliable wired network connectivity.
- Educational Opportunities: Provides a valuable learning platform for those interested in embedded systems and network communication.
- Customization and Innovation: The open-source nature fosters community-driven improvements and tailored solutions.
In conclusion, the DitroniX EPEM project represents a significant advancement in open-source energy monitoring. By placing a strong emphasis on Ethernet connectivity and offering the potential for integration with high-performance chips like the WIZnet W5500, the EPEM provides a robust, reliable, and customizable solution for a wide array of energy monitoring needs. As the project continues to evolve, its focus on stable wired communication positions it as a compelling option for both hobbyists and professionals alike.