/* function to register callback to be called when AT_BLE_CHARACTERISTIC_CHANGED event triggered from stack  */
void register_ble_characteristic_changed_cb(ble_characteristic_changed_callback_t char_changed_cb_fn)
/* function to register callback to be called when AT_BLE_CHARACTERISTIC_CHANGED event triggered from stack  */
void register_ble_characteristic_changed_cb(ble_characteristic_changed_callback_t char_changed_cb_fn)
{
	ble_char_changed_cb = char_changed_cb_fn;
}