Download ((top)) Arduino Uno R3 Library For Proteus 8 -

Close Proteus completely (use Task Manager to ensure no background processes remain). Reopen Proteus 8.

Once you have installed the Arduino Uno R3 library, you can use it to simulate and model your Arduino projects in Proteus 8. Here's how:

![Virtual representation of Arduino Uno R3 in Proteus component list]