Proteus VSM Software for Atmel AVR Microprocessor Features a Professional Schematic Capture module Offers Advanced Simulation Features and Proteus USB Transaction Analyser Comes with over 50,000 library components and footprints The Proteus VSM Software for Atmel AVR Microprocessor is the worlds most advanced embedded simulation tool, providing system level simulation of complete products directly on the schematic. Atmel is a leading manufacturer of microcontrollers, from the Atmel AVR chips used in the Arduino environment to various flavors of the 8051 and ARM architectures. The support for Arduino is comprehensive both in terms of processor support and ready-made shields. The Proteus Virtual System Modelling (VSM) combines mixed mode SPICE circuit simulation, animated components and microprocessor models to facilitate co-simulation of complete microcontroller based designs. Note: The software includes a 6-Month USC (Update Service Contract)