nad_daemon is a daemon used to remote control NAD amplifiers over RS232. It will accept commands from the network and send them to the amplifier. It also includes a simple client. It has only been tested on the C355bee, but it should work with other amplifiers. Certain receivers from NAD will also be remote controllable in this fashion, but the more fancy features are not yet implemented.
pichart is a GUI for pigrammar, an assembler and programmer for picloader-programmed devices. pichart offers a user-friendly interface, making programming PIC chips easy. It looks like a flow chart designer and permits operations like reading from the device's serial port, writing on it, setting ports' value, and setting timers. It also permits programming directly during execution.
The ws2500 weather suite is a complete software solution for extraction, processing, and Web presentation of data from an ELV WS2500 and WS2500PC weather station. Weather data can be stored in a MySQL database. The main component is the ws2500 application, which can read data and status information of the weather station via a serial RS232 connection. It can also set parameters of the station.
WIRN is a professional stored program control. It is optimized for heat control, but you can control whatever you want. It is a multitasking system using FreeRTOS.org on Atmel AT32UC3A1512, and has an API for simple sensor/actor interaction that makes it modular and simple to extend. Also included is a triac control over AVR ATtiny2313 and a 1Wire Interface. You can extend it via software: implement your own control loop with some lines of C code. You don't need a compiler; upload your code and get a binary back. Flash this binary over USB and go. It also has 3 ports to plug in your own hardware.
MediaRC is a remote control program intended for controlling various media devices found in a home theater or with a PVR like MythTV. It is an extendable program for which new drivers can easily be added. MediaRC currently can control IR devices through LIRC, the sound levels through ALSA, and serial devices like a TV.