How to pair exact two nrf52832 central and peripheral.

RE: How to pair exact two nrf52832 central and peripheral.

Mttrinh — Wed, 29 Aug 2018 13:58:53 GMT

This is probably because you are changing the 128-bit vendor-specific UUID of the Nordic UART Service.

RE: How to pair exact two nrf52832 central and peripheral.

Mttrinh — Wed, 29 Aug 2018 13:57:23 GMT

If you have multiple peripheral devices with the same application, it won't be enough to just have the UUID. Since the central will scan for devices with matching UUID. You could also scan for name or peer address, have a look at this example. The BLE_UUID_NUS_RX_CHARACTERISTIC is like it says in the comment "the UUID of the RX characteristic".

RE: How to pair exact two nrf52832 central and peripheral.

n.izdebski — Mon, 27 Aug 2018 12:18:08 GMT

I have NUS_BASE_UUID both on central and pherypheral devices - {{0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x00, 0x00, 0x40, 0x6E}}

When i change for example last bajt 0x6E to 0x01 on both there is no data receiving then. Where is mistake in my thinking?

RE: How to pair exact two nrf52832 central and peripheral.

n.izdebski — Mon, 27 Aug 2018 10:22:19 GMT

#define BLE_UUID_NUS_SERVICE 0x0001 /**< The UUID of the Nordic UART Service. */
#define BLE_UUID_NUS_RX_CHARACTERISTIC 0x0002 /**< The UUID of the RX Characteristic. */
#define BLE_UUID_NUS_TX_CHARACTERISTIC 0x0003/**< The UUID of the TX Characteristic. */

I see that i con match BLE_UUID_NUS_SERVICE adress on peripheral and central. But what is BLE_UUID_NUS_RX_CHARACTERISTIC.?

RE: How to pair exact two nrf52832 central and peripheral.

n.izdebski — Mon, 27 Aug 2018 10:16:49 GMT

Yea, im using this examples as basic for my application. Matching UUISs both central and peripheral in one pair of devices is enough to avoid pairing another peripheral same application?

RE: How to pair exact two nrf52832 central and peripheral.

Mttrinh — Mon, 27 Aug 2018 09:09:02 GMT

Hi,

Have a look at UART central example and UART peripheral example. Is it what you are looking for?

The central application will scan and connect to peripheral devices that advertises with a specific UUID in its advertisement report, that is NUS UUID in this case.