Joshua is a chess robot. It is a stepper motor robot that interfaces with a photosensible board and a computer to play chess with an embedded artificail intelligence, a game database, or a player on the Internet. The package includes software, robot photos, technical papers, schematics, and cabling instructions.
The SimulAVR program is a simulator for the Atmel AVR family of microcontrollers (ATtiny and ATmega). SimulAVR can be used either standalone or as a remote target for avr-gdb. There are interfaces for Python and Tcl. When used in gdbserver mode, the simulator is used as a back-end so that avr-gdb can be used as a source level debugger for AVR programs.