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Last activity 2017-11-16 18:06:02 +0200 by Ben

nRF52832, STM32 Central w/ Serialization not scanning [closed]

I'm trying to implement a BLE Central device on an STM32 using Serialization to connect with an nRF52-DK board; I've previously gotten a BLE Peripheral working on the same setup (in this case I'm not trying to ... (more)

86
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no
votes
3
answers
Last activity 2017-11-16 10:47:43 +0200 by strengthstrong

NRF52832 Maximum number of central links

HI, I found that the maximum number of connections 52832 can only be 15 connections, like this

// <o> NRF_SDH_BLE_CENTRAL_LINK_COUNT - Maximum number of central links. 
#ifndef NRF_SDH_BLE_CENTRAL_LINK_COUNT
#define NRF_SDH_BLE_CENTRAL_LINK_COUNT 15
#endif

When I set up more than 15 when the compiler ... (more)

23
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no
votes
1
answer
Last activity 2017-11-15 07:49:31 +0200 by endnode

What is the latency between central and peripheral communication?

Hello, I am using ble_app_uart_c and ble_app_uart example for data transmission between central and peripheral. I am able to transmit data successfully. I would like to know the time difference between transmission and reception. Are there any methods to find this?

81
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2
votes
2
answers
Last activity 2017-11-12 18:42:26 +0200 by Carlos Delfino flag of Brazil

Where to buy pre-programmed Nordic modules with UART interface acting as central/peripheral ?

I'd like to buy a large amount of Nordic modules with Central and peripheral function with UART interface (similar to HM10 which is based on TI). The purpose is to build a MESH network. Are there manufacturers that can ... (more)

29
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2
votes
1
answer
Last activity 2017-11-09 03:37:41 +0200 by SaiTeja

Custom nrf52832 board not recieving data in central role

Hello , I am using nrf52 Dk and nrf52832 custom board for testing ble communication. I am using ble_app_uart and ble_app_uart_c examples to test ble communication. In my custom board , I connected P0.6 to Rx of CP2102 and P0.8 ... (more)

35
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1
vote
1
answer
Last activity 2017-10-24 17:04:56 +0100 by AR

sd_ble_gattc_write for enabling notification results in busy for second call

Hi, I am trying to add a notification charactersitics on client, I am able to add one of them, but when i try to add another one sd_ble_gattc_write(), result is always NRF_ERROR_BUSY. I am calling this cccd_configure() with same conn_handle ... (more)

38
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no
votes
1
answer
Last activity 2017-10-11 05:34:07 +0200 by Jonathan

Where can i find nrf51822 firmware?

Anyone know how to put the nrf51822 firmware again? I made an update and deleted it from the kit. Where can I find it?

Thanks

91
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no
votes
2
answers
Last activity 2017-10-05 01:03:15 +0200 by Krzysztof Zaraska

NRF52 pair to NRF52 using NFC possible?

I would like to know if it's possible to pair two NRF52832 together using NFC. NOT an android phone to an NRF52, but a central NRF52 standalone connect to a peripheral NRF52 standalone. Can the NRF52 generate RFID tag ... (more)

44
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no
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no
answers
Last activity 2017-10-01 04:49:08 +0200 by phob

NRF51822 sometimes not working

Hi, I am using NRF51822 and sdk12.2. I am using Softdevice s130 with peripheral experiment_ble_blinky example. I have merge UART example in this and it is working fine.

Yesterday i flashed and it was working perfectly. Even i connected ... (more)

26
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1
vote
1
answer
Last activity 2017-09-29 20:59:57 +0200 by endnode

Softdevice suitable for multilink central NRF51822

Hi, I am using NRF51822 and GCC compiler. I am using softdevice S130. SDK 12.2. I want to receive the data from Peripheral that is one way only. I want to use multilink central application on NRF51822. When i ... (more)

115
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no
votes
1
answer
Last activity 2017-09-18 15:58:51 +0200 by Joakim Jakobsen flag of Norway

NRF_LOG and UART not working simultaneously

Hi,

I am using experimental_ble_app_blinky example. In that NRF_LOG over UART was implemented. I Added some UART code for my use. But after flashing code was not working at all. Printf and NRF_LOG_INFO was not working simultaneously. Then i commented ... (more)

55
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no
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no
answers
Last activity 2017-09-15 01:15:16 +0200 by x_mike

Central whitelists with peer manager under FreeRTOS

Hi Nordic,

I've built a ble app with a custom protocol, but am struggling with storing bonds, when running under freeRtos.

What I see:

  • central app crashes (hardfault), when peer manager is passed a non empty white list (loaded ...
(more)

56
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1
vote
2
answers
Last activity 2017-09-12 18:26:16 +0200 by phob

can NUS work with ble_app_multilink_central

hi, I found ble_app_multilink_central example under SDK but this is for LED button application.

Is it possible to configure the same example for NUS?

I worrying about data sharing. As Button and led don't share data and it is ... (more)

63
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no
votes
1
answer
Last activity 2017-09-11 11:24:24 +0200 by Petter Myhre flag of Norway

central HID function(nrf51 or 52)

Hi

I need use nrf51 or nrf52 to do the function . central HID .

have any source ?

Thanks.

176
views
2
votes
1
answer
Last activity 2017-09-08 09:48:21 +0200 by sam

NRF51822 IRAM1 Settings (multilinkCentral Projects)

Hi, Im using Nrf51422 DK board. When I try the ble_app_multilink_central example in the SDK12, it works on the DK board. But it does not work in NRF51822. (NRF51822 QFAA)

I tried the settings on this link but it ... (more)

113
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1
vote
1
answer
Last activity 2017-08-25 13:49:28 +0200 by Joakim Jakobsen flag of Norway

How to use PCA 10040 as a central that connects and pairs with a PCA 10028 as a peripheral?

I use PCA 10040 as a Central, and PCA 10028 as a peripheral. I want the central to connect and pair and bond with the peripheral.

I use S130 for PCA10028, s132 for PCA10040, both use sdk12.2.0

I ... (more)

115
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no
votes
1
answer
Last activity 2017-08-09 11:21:52 +0200 by endnode

can i use ble connection and advertising at the same time?

i use nrf52832 .i want to connect device and send advertisment data at the same time. But peripheral mode cannot connct device and send advertisment at the same time. central mode caonnot send advertisment data.so how can i use ... (more)

39
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no
votes
1
answer
Last activity 2017-08-03 13:01:02 +0100 by Sigurd flag of Norway

Are there examples for using battery & HTS service at the central?

I have set up the peripheral to transmit some dummy data, device information service, battery service and HTS service. I am getting started with the "central" now. Can some one tell me how to use these services in the central ... (more)

112
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no
votes
no
answers
Last activity 2017-07-27 13:24:55 +0200 by zamek

FreeRTOS & ble central hrs

Hi All,

I would like to make bluetooth data collector with a serial line. There are max 16 bluetooth devices on the air where I need to collect data. There is a PC which continuosly polling this device by serial ... (more)

94
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no
votes
1
answer
Last activity 2017-06-23 11:47:45 +0200 by endnode

nRF51822 Central mode

Hi,

I am adding BLE functionality to one of my existing product. I product will play the central role for which I am thinking to use nRF51822 based module.

I learned that central can be developed using softdevice S120. My ... (more)

58
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no
votes
1
answer
Last activity 2017-06-20 09:33:53 +0200 by Jørn flag of Norway

What should be the "NRF_RADIO" configurations to establish in maximum distance connection?

I have one central(SDK 10.0 S130) and one peripheral(SDK 8.0 S110) device. Normally central device can connect peripheral device it's ok but the peripheral device will stay in metal case. I did some tests and ... (more)

246
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1
vote
no
answers
Last activity 2017-06-05 10:14:06 +0200 by purgoufr

How to create a whitelist on the Central device

I want to create a whitelist on the Central device. Because there is a lot of peripheral devices around and I just want to connect one peripheral device. First I register the address of the central device to the peripheral ... (more)

232
views
1
vote
1
answer
Last activity 2017-05-05 12:23:09 +0100 by Gordon

Bonding with nRF52 as Central

Hi, I have a need to connect to a peripheral device from and nRF52 with a Bonded connection.

My device handles bonding when it is a peripheral, but what is needed to enable bonding in Central mode? Is there some ... (more)

190
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no
votes
1
answer
Last activity 2017-04-21 15:59:14 +0200 by Jørgen Holmefjord flag of Norway

Android app

Hi, i'm currently using two NRF52 (1 central and 1 peripheral) using the ble_app_blinky and the ble_app_multilink_central.

I would now like to connect my Android phone with the Central in ordrer to control several NRF devices.

How can I ... (more)

75
views
no
votes
1
answer
Last activity 2017-04-18 07:47:57 +0100 by rct42 flag of New Zealand

NRF HRS peripheral to NRF HRS central

I am trying to get a NRF HRS central (ble_app_hrs_c) to make a connection to a NRF HRS peripheral (ble_app_hrs). However, the peripheral does not show up whenever the central scans for HRS device(s). Meanwhile, the HRS peripheral appears ... (more)

259
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no
votes
1
answer
Last activity 2017-04-10 14:29:21 +0200 by Jørgen Holmefjord flag of Norway

How to read manufacturer specific data

Hi, i'm working a BLE gateway with NRF52DK and S132 by using the demo example central uart.

The peripheral equipement advertise manufacturer data like this: 0x0001 during 5sec then 0x0002 during 5 sec and stop advertise.

But I want ... (more)

135
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1
vote
2
answers
Last activity 2017-04-10 08:29:17 +0100 by Matija Tudan

Central and a custom peripheral device [closed]

Hi,

Can the central device (ble_app_hrs_c for example) scan for and connect to a custom peripheral device (not nRF based)?

91
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no
votes
1
answer
Last activity 2017-04-06 10:02:27 +0100 by Sigurd flag of Norway

Experimental NFC BLE Central Pairing Reference :ERROR:Fatal

Hi,

I am using SDK 13.0 and tried to burn in fresh example code (Experimental NFC BLE Central Pairing Reference) to either PCA10040 and PCA10056. However both always shows :ERROR:Fatal in debug terminal. Did I miss out something ... (more)

133
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no
votes
1
answer
Last activity 2017-03-29 15:01:46 +0200 by Kristin flag of Norway

ibeacon continuous scanning and connectable service

Hi,

I adapted the ble_app_multilink example to continuously scanning for ibeacons and collecting rssi data.

Data are then sent via UART to a microcontroller which provides Bluetooth connectivity in order to read data on an iOS device.

I am using ... (more)

143
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no
votes
1
answer
Last activity 2017-03-22 11:02:26 +0200 by Jørgen Holmefjord flag of Norway

Beacon and Central

Good afternoon.

I have 2 boards NRF51:

  • One as beacon (SDK 9), use example code "nRF51_SDK_9.0.0\examples\ble_peripheral\ble_app_beacon".

  • The other as central (SDK10, softdevice s130), use example code "nRF5_SDK_10.0.0\examples\ble_central\ble_app_uart_c" to read beacons ...

(more)

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