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[on:]

https://www.youtube.com/watch?v=5druVAvlyxk

[Reply #1 on:]

Components:
Arduino nano V3,Ultrasonic HC-SR04, Servo, H-Bridge, L293D, L7805.
Robot program:
http://maxim.wf/arduino_code/Robot_compilation.pde

[Reply #2 on:]

Haha! Great navigation!

I love how crazy it's head spins!

[Reply #3 on:]

Code:

   if(dist_f>=25)
   {
    a:
    motion('f',180,135,t);
    dist_135=sonar();
    front_motion(t);
    motion('f',135,90,t); 
    dist_f=sonar();
    front_motion(t);
    motion('f',90,45,t);
    dist_45=sonar();
    front_motion(t);
    motion('f',45,0,t);
    dist_r=sonar();
    front_motion(t);
    motion('f',0,45,t);
    dist_45=sonar();
    front_motion(t);
    motion('f',45,90,t);
    dist_f=sonar();
    front_motion(t);
    motion('f',90,135,t);
    dist_135=sonar();
    front_motion(t);
    motion('f',135,180,t);
    dist_l=sonar();
    front_motion(t);
    if (dist_f>=25)
    goto a;
    }

This should be a while loop, so you can loose the silly goto.

Some arrays and for loops() would greatly shorted the code.

[Reply #4 on:]

Thanks

[Reply #5 on:]

Is it this platform?  http://www.robotshop.com/dfrobot-mobile-tank-base-1.html

Do you think you are getting good readings with panning the sonar so fast?

[Reply #6 on:]

yes.  I' measuring only several positions (0, 45, 90, 135 180). And servo waits while arduino measuring at these times