Help!!!!!How to determine PWM frequency for ESC -- Motor is not running!!

We are currently interfacing a modelcraft truck-60wp with Arduino Uno board, we are using a separate power supply of 7.4V for it.
We used a 2K pot for throttle, and our motor still doesn't run. We have also calibrated it and able to see all the angles.
We are supplying the ESC with 7.5V and it is a BEC circuit.
How to make the motor run??
Help!!

Show us a good schematic of your circuit.
Show us a good image of your wiring.
Give links to components. Posting images:

Use CTRL T to format your code.
Attach your ‘complete’ sketch between code tags, use the </> icon in the posting menu.
[code]Paste your sketch here[/code]

-- This is our circuit

!(http://C:\Users\Priyanka\Desktop\chalmers\Year2\SP2\Auto\report\rs540sh motor) -- this is the motor we are trying to power on

The battery we are using is a 7.2V NiMh battery

The ESController we are using- modelcraft-truck60wp

You need some code to run a motor and to help you we need to see that code. Please post it.

And see https://forum.arduino.cc/index.php?topic=148850.0 for how to post your code and also how to post images correctly...the images must be on a website NOT on your computer hard drive!

Steve

Use the Servo library for any RC equipment like hobby servos and ESCs.