I'm working with propeller since about a year. I'm glad you discovered too. First of all, you can find a lot of information on the parallax web site www.parallax.com there is an exclusive page for propeller http://www.parallax.com/tabid/407/Default.aspx On the propeller download page http://www.parallax.com/ProductInfo/Microcontrollers/PropellerGeneralInform= ation/PropellerMediaPage/tabid/832/Default.aspx You can download the Propeller Tool Software for Windows, and the Brad's Spin Tool, which runs in Linux an Mac. There is also the propeller Manual where, in page 17 you can find the -almost- minimal hardware connections. http://www.parallax.com/Portals/0/Downloads/docs/prod/prop/PropellerHardwar= eConnections.pdf Theoretically, the propeller can work only with a serial connection (to load the program to RAM) and power supply. Practically, its best to run it with an eeprom, as Bob noted, and a FTDI chip for serial. Regards --=20 Hector -- El Pic no pudo Iniciar correctamente. Inserte el disco de arranque y presione cualquier pin para continuar... Linux Registered User #467500 http://counter.li.org/ --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .