Simulator to check communication of Arduino (hardware)

Projects General Guidance
1

Hello!
Is there any simulator available to check the communication of Arduino? It is better if the simulator is in hardware (form) so that I can check whether the data which I sent is correct or not?
Thank you

2

It is better if the simulator is in hardware (form) so that I can check whether the data which I sent is correct or not?

You can use your computer!

3

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