If you want to work on a cool project which involves some circuit design, I recommend Proteus. If you are a beginner to Arduino and circuit design, then I recommend you try out TinkerCAD.
TinkerCAD is also another tool that can be used for simulation.Developed by AutoDesk, it is a cloud-based software which is only limited to Arduino simulation.
However, it is not only limited to simulation - you can also make PCB designs with it. I prefer Proteus for Arduino project simulation because of its extensive collection of libraries. The designs you make can be easily compiled and debugged through Proteus’s virtual meters (voltmeter and ammeter), oscilloscope, serial monitor, and more. It has an extensive number of components in its library which can be used to virtually design your circuit. It is a very useful tool as it ensures that the circuit design or firmware code is working properly before you begin to physically work on it. Proteus is a simulation and electronic design development tool developed by Lab Center Electronics. What is Proteus and How Does it Compare to Other Simulation Software?
