Orno WE-504 Power meter reader written in pure C.
This program was designed to read ORNO WE-504 on embedded systems - such as Tomato, OpenWRT etc.
Application is very simple, just build it by typing make and run by typing ./orno-reader.
It will try to connect to ORNO reader via first USB serial port (ttyUSB0), and if it succeeds, prints readed values in human readable format.
Orno-Reader uses simple serial port control library from: http://www.teuniz.net/RS-232/.