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You can check this app online here: https://koshka.ddns.net/pzemweb/v1.1/ (You will need Chrome browser or similar )
A web-app (web-interface) for Peacefair PZEM energy monitors.
It is loaded from https web server but works completely on a local machine with local devices and local database.
It uses Web Serial API to connect to PZEM devices and IndexedDB to store data.
JqGrid and Apexcharts used to display stored data.
This application (hopefully) supports simultaneous data exchange with multiple PZEM devices.
library for capturing, storing and visualizing timeseries data
The JTimeSeries has moved to github
Please go to https://github.com/JTimeSeries/jtimeseries
The SourceForge copy has not been maintained since Sep 2012
A java library to assist with capturing and storing timeseries data/metrics. Provides facilities to publish timeseries data across a network, a lightweight server to persist series data, and client user interface components for real time visualization