Hi, I have almost same project to do. but I confused with connection and code. [Any video or advice is appreciated <3]
My project all about 2 arduino, (Part1)1st arduino have mp3 with bluetooth Master, (Part2) 2nd arduino have bluetooth slave with "digital audio amplifier module" [amplifier connected to 2x Speakers and external Battery 12V].
First,(Part1-Part2) which is better "bluetooth Master/Slave" or "Wireless transmitter send/receive ".
Second,(Part1) how to configure mp3 with bluetooth [pins/code]. mp3 send data to bluetooth via arduino (arduino because I want to add LCD or IR remote sensor)
Third, (Part2) I have "digital audio amplifier module" similar to PAM8610 Amplifier [https://goo.gl/images/1aY8A7] and it must connected to bluetooth [my bluetooth model: https://goo.gl/wGQHmi & https://goo.gl/3Yxpu8 ] via arduino. [I need to use arduino because add LEDs or Keys or LED Matrix ] so, which one to use as Master and Slave, also how to connect amplifier to arduino and bluetooth received data and play song from part1.
If you want more details about the project ask me.
Thank you, Please help me!
