[SOLVED] Problems sending data from Processing to Arduino through serial port

[bacum]

hi guys! @glv @RichardDL SOLVED!!

Thanks a lot for your tips and time!;)) my mistakes were several:

• I was assigning an error port.
• It was very important the order of the actions how indicate me @RichardDL.
• It was definitive the tips of @glv to understand were I was failing. (https://learn.sparkfun.com/tutorials/connecting-arduino-to-processing/all)

Now I just need to power the Arduino Mega with a battery, separated of de computer to have solved my communication system.

Thanks a lot to both!! You are masters!