VBB - Virtual Bread Board

VirtualBreadboard is a simulation and development environment for embedded applications that use microcontrollers. It is easy to use and can replace a protoboard for experimenting with new designs. 

 VBB simulates many of the PIC16 and PIC18 microcontroller devices with now Arduino emulation. In addition a wide variety of simulated components such as 

• LCD’s
• Servos
• logic  
• Stepper
• Connectors
• Led Arrays
• Switches
• EEPROM
• DAC

other IO devices that can be used to model and simulate high level circuits. 

Download the software from here
 
Get connected to http://www.virtualbreadboard.net  for more info.

Here is a small video demonstration