Wiznet makers

Project Overview

Project-OVSG is a prototype system designed to monitor the status of a solar power station.
It is based on the WIZnet W5500-EVB-Pico board and utilizes two INA260 sensors to measure real-time voltage, current, and power data for both the solar panel and system load.
Currently, the data is output via Serial, with a structure suitable for future expansion to Ethernet-based communication.

Hardware Configuration

System Operation

1. Initializes I2C and configures two INA260 sensors
2. Periodically reads voltage (V), current (A), and power (W) values
3. Prints measured values over Serial
4. Designed to support future Ethernet-based data transmission

Technical Benefits

• Power metrics can be acquired without analog circuitry using INA260
• Stable serial-based debugging structure
• Existing ESP32 version implemented for alternative hardware support

Why W5500-EVB-Pico is a suitable choice:

• Combines RP2040 MCU and W5500 Ethernet controller on a single compact board
• RP2040 provides dual-core performance and ample GPIOs for I2C + Ethernet multitasking
• Wide software support in CircuitPython, C SDK, and Arduino environments
• Built-in hardware TOE enables reliable socket-based Ethernet communication in future extensions

Conclusion

Project-OVSG demonstrates a lightweight and modular approach to monitoring solar power system metrics,
with a clear path toward integration into IIoT applications.
By using the W5500-EVB-Pico board, both sensor control and network capability are unified on a single platform.
The open-source structure and low-power design make it easy to adopt for industrial, educational, or field-deployed scenarios.