JM Power Meter (JMPM)

The JM Power Meter (JMPM) is a high resolution non-invasive energy monitoring device with support for sensing the current on up to 5 circuits and voltage. Based on the designs by OpenEnergyMonitor, this offers 12 bit analog to digital converters as well as a user selectable measurement range of either 120A or 35A per channel with better than 1 watt…

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Segmented Home Network

I remember my first home network. I was living in my parents home and ran a null modem cable between two computers with the LapLink Software Package. After that, my home network evolved to 10BASE-2, 10BASE-T and then 100BASE-T. I was the envy of my friends when I purchased a network switch — at the time everyone else used network hubs.…

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