I'm Looking For A Chip That Can Be Used In My Electronic Project

https://learn.sparkfun.com/tutorials/bluetooth-basics

This is a real nice product. About 18 bucks.

google Arduino bluetooth.

ask your teacher

otherwise

perhaps https://www.bluetooth.com/develop-with-bluetooth/developer-resources-tools

(+ an overshoot but a possible source for detailed low level spec.-s if such required https://www.inf.ethz.ch/personal/hvogt/proj/btmp3/Datasheets/Bluetooth_11_Specifications_Book.pdf)

Nice article, lovely use of the word Guru, but KangaRoo is the correct spelling for our spring loaded mouse....

Rod.

http://www.pcworld.com/article/3175256/computers/the-10-raspberry-pi-zero-w-brings-wi-fi-and-bluetooth-to-the-minusule-micro-pc.html

I have used hc-05 modules before and had good luck with them. They run between about $4 and $10 depending where you get them; you can find them on Amazon and Ebay (just search hc-05).

The only tricky thing, which may or may not be an issue for you, is they output 3.3v signals so you may need a level converter depending on the project. If I remember, they are tolerant of 5v data inputs (but don't quote me on that).