Dear Mohammadreza,

I don't understand well what you mean. I want to acquire and process EMG signal with scope to do Real Time EMG signal processing, by using 'MATLAB' and 'ARDUINO UNO', to detect whether the hand is open or close.

Thank you.

See whether the following links help you in anyway:

https://www.youtube.com/watch?v=2SIAzPiq9Dk

http://www.instructables.com/id/Muscle-EMG-Sensor-for-a-Microcontroller/

Dear Paulin Alanmanou,

Will you use arduino to acquire the signal and send the signal to the computer to be processed by Matlab? If yes is not common use general purpose operating systems like windows, linux, mac os to do real time calculations.

I think you can consider processing data in the arduino and send to the application only the computed results. 

I'm sorry Mohammadreza.

I know, my English is very bad to explain what I mean.

I don't have any file to upload. I need code to try to acquire EMG signal using arduino, matlab and EMG-detector (emg sensor).

Thank

you may save EMG data  and also plot it using these code.