I am new to this forum. I need some help and would appreciate if you guys can help.
I am looking for a bluetooth module the battery i have has output of 3.7 volt and its 250 mah battery.
I want a BT module which can work with both android and iphone. I want to turn on and off the this device using bluetooth.
I looked online and most of the BT module deals with Audio. I want a simple BT module compatible to the battery i have and is less expensive. I need it so that the product cost can be kept down.
Also the size of BT module should be something like HC-05 module.