When prompted, select "Use a locally installed license key."
Allows for real-time simulation of microcontrollers like Arduino on the schematic. Proteus 8.9 Sp2 Professional With Arduino 1.8 Free --INSTALL
: Paste the files into this folder and restart Proteus. You can now find boards like the Arduino Uno by searching "Arduino" in the Pick Devices (P) Arduino Forum 4. Simulating Arduino Projects When prompted, select "Use a locally installed license key