[SOLVED] - BugBot not responding + LCD issue

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SOLVED

I finally managed on how to make the pushbutton work. I've connected the wrong button pins and, somehow, it didn't work!

As Cesar Osaka (from Laboratorio de Garagem, a Brazilian DIY/Arduino forum) corrected my circuit, the following images are credited to him.

Button layout (simple):

Code used for correcting the LCD issue:

lcd.setCursor(0, 1); 
lcd.print(" "); 
lcd.setCursor(0, 1); 
lcd.print(distancia);

Simulation using Simulino, Osaka's project for simulating Arduino under Proteus platform:

Thank you all,

Cheers