Power Line Communication (PLC) uses high frequencies to transfer data over power lines, allowing simultaneous power and data transmission. Initially used for dispatcher communication, PLC gained traction in the 1990s for internet access but couldn't compete with faster options. Today, it's used in smart meters, street lighting, and home automation. Despite challenges like interference and signal barriers, PLC remains a niche but essential technology.
Building a custom controlled resistive load: a comprehensive guide to overcoming the limitations of commercial test devices for power supply testing using Raspbery PI and DIY electronic circuit design
This simple and inexpensive unit will help test various devices; with it, one can determine the power factor of the AC grid draw, power-on and power-off times, etc.
What characteristics are important? What do the characteristics mean? How to measure parameters cheaply?
