Gw-Instek - Tag - Milletgrainhttps://lucaji.github.io/tags/gw-instek/Gw-Instek - Tag - MilletgrainHugo -- gohugo.ioen© 2013–2026 Luca Cipressi. Content licensed under CC BY-NC 4.0 unless otherwise stated.Tue, 19 Jan 2021 00:00:00 +0000GPMLink — GPM8310 Data Logger for Electrical Power Measurementshttps://lucaji.github.io/code-gpmlink-gpm8310-power-logger/Tue, 19 Jan 2021 00:00:00 +0000Luca Cipressihttps://lucaji.github.io/code-gpmlink-gpm8310-power-logger/

Measuring electrical power over long periods is often more useful than taking a single snapshot. A device may behave perfectly during a quick bench test and still reveal unexpected current peaks, warm-up drift, sleep-state anomalies, poor power factor, or efficiency losses only after minutes, hours, or even days of observation.

That is the reason I wrote GPMLink, a small logging utility for the GW Instek GPM-8310 AC/DC power meter. The goal was simple: connect the instrument to a computer over Ethernet, query its measurements at regular intervals, display the data, and save a continuous CSV log that could later be inspected, plotted, or imported into other analysis tools.

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