Circuitry Software

I write as a novice seeking to learn about electronic devices. I will be acquiring two arduino microcontrollers one of which will be the bluetooth

I know there is circuitry software at the engineering level for profesionals. Interested in learning if there is software that would allow one to simulate what is taking place when active. Additionally, is there a simulation software that would graphically demonstrate what transpires between circuit boards paired with eachother.

Much thanks for an informed reply as I close



Note: NOT FOR THE FAINT OF HEART OR MIND (but very powerful!)


Yes, faint is the right word.

Prepare to spend several weeks in your room without taking a shower and suspending other biological functions (possibly painful and/or lethal).

It may be worth it though.