You will require a bluetooth module which you can connect to the controllers UART pins……..you can find these modules easily in online shops check this link for one such module: http://www.dnatechindia.com/WIRELESS/Bluetooth-Module.html
You will require a bluetooth module which you can connect to the controllers UART pins……..you can find these modules easily in online shops check this link for one such module: http://www.dnatechindia.com/WIRELESS/Bluetooth-Module.html