Simulator

Good Day.
I have a question.
Have a good simulator for arduino uno?
And free
Tks for all

Here is a good one at http://www.arduino.com.au/Simulator-for-Arduino.html

It depends on what you want to Simulate.

There's a point where a simulator won't do you any good because in order to be useful you need to simulate the external hardware being used with the Arduino.

So far, I have yet to see a simulator that even simulates all of the basic functions of the ATmega328 chip.

Here is a new version of the Simulator for Arduino Simulator for Arduino v0.92 - YouTube updated a few hours ago.

With the ATMega328 chip, have you tried AVR Studio 4? If you can compile the sktech to a .cof file, AVR Studio will open this file and simulate all the hardware. It is not perfect but almost. Available on the atmel.com website or avrfreaks.net