RE: (Zephyr / NCS) Defining BLE scan data and advertising data during runtime

zciwor — Fri, 20 Aug 2021 14:36:38 GMT

I solved this with the help of matt.heins. You can dynamically update the sd and ad arrays at any time before advertising has started. My implementation is below:

	struct bt_data ad[] = {
		BT_DATA_BYTES(BT_DATA_UUID128_ALL, HISTORY_SERVICE_UUID),
		BT_DATA(BT_DATA_NAME_COMPLETE, name_holder, sizeof(name_holder)),
	};

	struct bt_data sd[] = {
		BT_DATA(BT_DATA_NAME_COMPLETE, name_holder, sizeof(name_holder)),
	};

	//Start advertising
	err = bt_le_adv_start(BT_LE_ADV_CONN, ad, ARRAY_SIZE(ad),
			      sd, ARRAY_SIZE(sd));
	if (err) 
	{
		printk("Advertising failed to start (err %d)\n", err);
		return;
	}

	printk("Advertising successfully started\n");