This is an old project, and probably no one currently at Omega Verksted knows anything more about it than what is provided on this page. You can try to recreate it if you want, but the documentation is provided as-is and it may be outdated.
Top side of OmegaVISPThe Omega Verksted In System Programmer is a tiny USB programmer for Atmel AVR microcrontrollers. The OmegaVISP is designed to be small, cheap, easy to use and open source. It works as an STK500, which means it is plug-and-play when using AVR Studio 4. Everything needed to make your own OmegaVISP is available on this page.
The OmegaVISP has the following features:
Connect to AVRstudio 4
Enter and leave programming mode
The following features have yet to be implemented:
Connect to AVRDude
Firmware upgrade via bootloader
Theoretically, it should work on all ATtiny and ATmega AVR devices. It has been tested on the following devices:
ATmega168, ATmega88, ATmega48
The latest version of OmegaVISP can be found in the Git repository. Here you will find the firmware source code, circuit diagram, pcb layout and gerber files.