Technology

Power Over Ethernet

Power Over Ethernet

Quicktip-Done-Untaped-Small Here’s a good step by step on making your own Power over Ethernet (POE) cable to supply power to your router/access Point/wireless gateway using only your RJ-45 connection. Power over Ethernet allows you to run only a single RJ-45 cable (Ethernet) to your access point, and run the power over the unused pairs of wires within the RJ-45 cable. Link.

Procyon MP3 Player

Procyon MP3 Player

Playing Another homebrew MP3 project from awhile back…Procyon MP3 is a hardware MPEG 1 Layer 3 (MP3) audio player which supports user-controlled playback of MP3 files stored on a typical IDE hard disk connected to the device. With the emergence of MP3 as a popular standard for storing, playing, and exchanging music, droves of electronics and computer companies have introduced both portable and desktop MP3 player devices into the consumer market. The rise of MP3 has also produced dozens of personal engineering projects like this one. Link.

Qucs project: Qt Universal Circuit Simulator

Qucs project: Qt Universal Circuit Simulator

Images-18 Qucs is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit. After that simulation has finished you can view the simulation results on a presentation page or window. The software aims to support all kinds of circuit simulation types, e.g. DC, AC, S-parameter, Harmonic Balance analysis, noise analysis, etc. Link.