You have an app. Or an idea for an app. It's supposed to control the robot. HOW does the app control the robot? It must send some kind of message over bluetooth. What will that message look like?
deadly_carrots:
but yes i have tried examples from the serial input basics but no avail
There's several examples. Which one did you think would get closest to what you want? Did you try modifying the code to get it closer? Then show us that code. Tell us what you are having problems with.
"No avail" doesn't help us help you.
Posting pictures of "Like this one but different" doesn't really help. Can you post a picture of your actual robot? If it's currently a pile of parts, then don't bother. We don't need a picture of a pile.
