android for arduino rgb led and piezo controller

hello friends

can anybody just help to figure out what should i do

i have problems:

  1. did arduino uno board can upload more than 1 code?
  2. how to make codes for android can change rgb led by bluetooth?
  3. how to make codes for android can change piezo sound by bluetooth?
  4. how to make a simple android apps for this problems?

thanks buddy

i have problems:

Correct use of English is one of them

  1. did arduino uno board can upload more than 1 code?

No. You write one code that will do everything you want.

  1. how to make codes for android can change rgb led by bluetooth?

That is for an Androide forum is it not?

thank buddy