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anyone have an idea why my motor are jerking at the same rate as my ping is fireing?  i have the ping on pin 9 so i can just plug it inot the motor shields servo port ( it is just power and pin 9) is this the problem? I know i have a lot of power 8 AA nimh at 2000 mah. my meter says the voltage is over 10 volts. they could be bad batteries. but why the jerking of the motors. it occasionally works right. ( i know i am ranting) any ideas?

anyone have some code i can have a look at to intergrate the ping sensor: ie have it look both ways and decide what way to turn?. i have been trying to find somethign similar but all i have seen is for the picaxe, i have an arduino.

thanks

i need to know what is wrong with this code. I know absolutely nothing about coding. but i can build anything. (kind of a hobby) I can build it but have no idea how to use it yet.

arduino deci.

ladyada motor shield

lithium backpack and various other batteries

here is the problem, the code i found does not compile. comes up with errors, but i dont know how to fix them, i have done several things and have got past a few, only to have others pop up.