Node.js IoT – Build a Cross Platform CPU Sensor

[Dave Johnson]

In this tutorial, I guide readers through the process of building a cross-platform CPU sensor using Node.js, which can measure and stream CPU utilization data. The article covers the implementation of a CPU sensor that works on both Raspberry Pi and Windows systems, addressing the challenges posed by the lack of a direct equivalent to UNIX's load average on Windows. By utilizing the windows-cpu npm module, I demonstrate how to create a function that retrieves CPU load data, ensuring compatibility across platforms. The tutorial culminates in a final code example that averages CPU loads for multi-core systems, encouraging readers to test the sensor on their devices and prepare for future enhancements.