I'm developing a fully featured, low cost, MSO. Schematics and HEX files available if you want to build your own unit. The Xprotolab is the first mixed signal oscilloscope with an arbitrary waveform generator in a DIP module. It measures only 1.6" sq. inches, and can be mounted directly on a breadboard. The Xprotolab can also be used as a development board for the AVR XMEGA microcontroller. Geby ganzziani - Experimental and Hobby