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Last activity 2017-06-28 19:55:02 +0200 by Tien Tran

Central role sec_params_reply() returns NRF_ERROR_INVALID_ADDR

Hello!

I'm trying to read data off of a commercial blood pressure monitor (Qardio arm) using an nrf51822 with the nrf51 SDK v10.0.0 as the central role (s120). I am able to connect using sd_ble_gap_connect() and run ... (more)

10
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answers
Last activity 2017-06-28 18:22:51 +0200 by pawan_v61

ble and spi in nrf52

hello , I am working spi with softdevice(i.e., bluetooth). here spi master is nrf52 and spi slave is ad9837. the spi interface code works fine without soft device(i.e.,ble) but with softdevice and I am integrate that ... (more)

65
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answers
Last activity 2017-06-27 17:53:14 +0200 by desnyki

Trouble finding characteristics using android nRF toolbox, while the nRF Connect android app finds it ok

Okay so the issue is a little more complicated than this.

Phones used for testing were htc m8 (android 6.0) and lg g5 (android 7.0).

Ble chip running on a linux OS using BlueZ stack.

I've modified ... (more)

34
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1
answer
Last activity 2017-06-27 11:16:02 +0200 by Kristin flag of Norway

Serial port only works when debugging

Custom app running on a nRF52 devboard. Serial port runs when I use the debugger and continues after I exit the debugger, but does not run from a cold start.

using the Nordic UART FIFO code. NRF_LOG_USES_UART=1 and DEBUG ... (more)

51
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1
vote
1
answer
Last activity 2017-06-27 09:41:58 +0200 by endnode

How to connect multiple BLE HC 08 to nRF52832 (as central) using UART communication.

I am trying to connect multiple BLE HC 08 devices to nRF52832 DK but I am not getting how to configure the nRF52832 as central

62
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1
vote
1
answer
Last activity 2017-06-27 07:40:32 +0200 by Rajat flag of India

Some CHARACTERS not printing in UART.

Hi Friends..! When I am sending data to UART to print it on terminal, some output data is getting skipped. please tell some solution.

45
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1
vote
2
answers
Last activity 2017-06-26 15:29:36 +0200 by emdi

Fstorage Queue Runs Full when Bluetooth Connected

I'm trying to store some values with fstorage. The store operations seem to be queued successfully, but never executed. I currently have this to test the behavior:

FS_REGISTER_CFG(fs_config_t fs_config) =
{
    .callback  = fs_evt_handler, // Function for event callbacks.
    .num_pages = 1,      // Number ...
(more)

19
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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)

28
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no
votes
1
answer
Last activity 2017-06-22 21:40:20 +0200 by endnode

S130 central disconnected immediately after connection to iOS peripheral

Dear developers, I am developing a scheme where the nRF51 (central role) connects to iOS device (peripheral roles). The nRF51 connects, performs the discovery procedure and interacts with desired characteristics.

However, this only works for some iOS peers (some phones ... (more)

32
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1
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no
answers
Last activity 2017-06-22 15:30:54 +0200 by Stigui

s132 softdevice + example code not working

Hi, I’m having some troubles with example code : ble_app_uart_s132_pca10040. The code compile well in Keil and I can prog it in the nfr52 but it doesn’t run. When I check the code step by step in debug session ... (more)

35
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answers
Last activity 2017-06-22 13:27:39 +0200 by Jørn flag of Norway

In the MPU6050 module, when the ACC, GYRO data update, INT pin can not produce interrupt signal

NRF52832 S132 MPU6050 TWI

I want to finish the function:

  1. When the ACC, GYRO data update, the INT pin to generate an interrupt, and then in the P026 pin configuration falling edge trigger GPIOTE interrupt,and then read the ACC ...
(more)

40
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no
votes
1
answer
Last activity 2017-06-22 06:33:39 +0200 by pawan_v61

unable to send data from uart ble for every 10msec

hello, I am using nrf52 dk. I am doing a project that uart send the adc data through bluetooth to nRF UART v2.0 app for every 10msec. but when i am transmitting the data the bluetooth connectivity was lost ... (more)

46
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2
votes
1
answer
Last activity 2017-06-21 16:41:10 +0200 by David

flash update just 1 byte

Hi, I'm using nrf51 without ble.

I want to update flash but not want to delete PAGE every time.

    NRF_NVMC->ERASEPAGE = (uint32_t) page_address;

How can i do?

39
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1
vote
1
answer
Last activity 2017-06-21 15:48:19 +0200 by Rajat flag of India

MPU data in dynamic advertising packet

Hi friends...!

I want to put dynamically changing MPU data into the advertising packet. I am putting my accelerometer data into manufacturer specific data field of ble_advdata_t structure. but the problem is that the data is not changing with every ... (more)

54
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no
votes
1
answer
Last activity 2017-06-19 21:21:02 +0200 by Shreyas Shivalkar

ble hangs when UART initialized

I have reformatted the code I had added earlier.

Following is the sequence of code

uart_debug_init();

gap_params_init();
services_init();
advertising_init();
conn_params_init();

Following is UART initialization code

uart_debug_init()
{
  const app_uart_comm_params_t comm_params =
  {
      7, 8,
      NULL,
      NULL,
      APP_UART_FLOW_CONTROL_DISABLED,
      false,
      UART_BAUDRATE_BAUDRATE_Baud38400
  };

  APP_UART_FIFO_INIT(&comm_params,
                     UART_RX_BUF_SIZE,
                     UART_TX_BUF_SIZE ...
(more)

30
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no
votes
1
answer
Last activity 2017-06-18 23:20:26 +0200 by endnode

Can't I connect to device that hasn't been discovered yet?? (but with Address)

Can't I connect to device that hasn't been discovered yet??

I'm trying to connect one device(A) to another device(B) which ADDRESS is known but never discovered yet.

The reason why it isn't discovered is ... (more)

2k
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4
votes
3
answers
Last activity 2017-06-17 00:49:16 +0200 by Nelson Rodriguez

printf / UART debug does not work properly on nRF51822 s110 ble_app_hts example.

Hi,

Thanks for taking the time looking into issue. We are using Keil uVision 5.14. Our target is a custom board (BMD200 eval Module based on nRF51822) We were able to run uart example with expected outputs to Putty ... (more)

47
views
1
vote
1
answer
Last activity 2017-06-16 10:38:48 +0200 by Joakim Jakobsen flag of Norway

NFR52832 BLE CUSTOM SERVICE

Hi,

I am trying to make an empty custom service by following this tutorial from Nordic https://devzone.nordicsemi.com/tutori.... However I am unable to get the service to show up in nfr-connect on my phone, I was wondering ... (more)

19
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no
votes
1
answer
Last activity 2017-06-15 21:15:53 +0200 by Jørgen Holmefjord flag of Norway

Can nRF51 be BLE connected while it's on sleep mode? (connected by other device as Peripheral mode)

Can nRF51 be BLE connected while it's on sleep mode? (connected by other device as Peripheral mode)

I thought, to be connected as peripheral mode, It must be advertising itself to be connected, because after a little bit of ... (more)

55
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no
votes
1
answer
Last activity 2017-06-14 15:34:52 +0200 by hberg

BLE Scatternet Algorithm

Hello,

i'm currently researching the possibility of building scatternets with BLE. As the S130 softdevice supports multiple concurrent roles, it seems very possible (see here).

Are there any studies or tested topology algorithms that implement a scatternet with BLE ... (more)

32
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1
vote
1
answer
Last activity 2017-06-14 10:34:29 +0200 by Jørgen Holmefjord flag of Norway

Porting code from pc-ble-driver-1.0.0 to pc-ble-driver-2.0.0

I'm trying to port my code using pc-ble-driver-1.0.0 to use the latest official version 2.0.0

I see library names changed (from pc-ble-driver-1.0.0.* to pc_ble_driver_shared_sd_api_v3.*), I can handle that.

But I also notice that ... (more)

97
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no
votes
1
answer
Last activity 2017-06-13 14:38:24 +0200 by priya

What will the BLE beacons show up as in Wireshark when programmed with peripheral example code

log.txtI have programmed my nRF smart beacon with example peripheral code with DK52. My beacon now flashes red. I am using the nordic sniffer to sniff ble packets in wireshark. My executable crashes after 5 seconds since there ... (more)

66
views
no
votes
1
answer
Last activity 2017-06-13 13:08:14 +0200 by Kristin flag of Norway

Coded PHY testing

Hi,

I get the ble_app_att_mtu_throughput -example working with the coded PHY between two nRF52840 boards. Very nice, although I did not yet get the coded PHY advertising working. Just the coded PHY connection.

To understand how well the actual coded ... (more)

47
views
no
votes
1
answer
Last activity 2017-06-12 15:18:20 +0200 by Nabil flag of Belgium

How to check the paired device address [closed]

Hi,

Can anyone guide me to get the paired device address and how can I recheck device address when every time the device comes in to nearby central.

54
views
no
votes
1
answer
Last activity 2017-06-12 14:49:53 +0200 by Jørgen Holmefjord flag of Norway

What's new in pc-ble-driver 2.0.0

I see Nordic release pc-ble-driver 2.0.0 some time ago. I'm using 1.0.0, before I upgrade to the new version, I'd like to know what's new in it....could not find any list of ... (more)

74
views
1
vote
1
answer
Last activity 2017-06-11 22:18:50 +0200 by usamak

Setting Gap Connection Event Length - BLE HRS C Demo

Why is the event length of the BLE Central HRS demo set to such a high value of 320*1.25ms = 400ms?

The demo seems to work ok with the BLE Peripheral HRS demo using the default value (BLE_GAP_EVENT_LENGTH_DEFAULT) of ... (more)

71
views
1
vote
1
answer
Last activity 2017-06-09 12:31:36 +0200 by David Edwin

Transfer large data with ble-bcast-mesh

Hello,

i'm currently looking into ble-bcast-mesh with the goal to transfer a large amount of data (up to 1kB) from one node to another. ble-bast-mesh is working (as far as i understand it) by broadcasting data in handles to ... (more)

33
views
no
votes
no
answers
Last activity 2017-06-08 12:21:17 +0200 by MVR

How to restrict of accessing the services of a ble profile.

I am using proximity profile for my custom board as a tracker.I would like to make the services read/write operations accessable only to my andriod app.Others can connect to the tracker app and can see the services ... (more)

64
views
1
vote
1
answer
Last activity 2017-06-08 08:26:50 +0200 by Kristin flag of Norway

NRF_LOG_PROCESS

In example "ble_app_hts" NRF_LOG_PROCESS don't work. but in this "...\examples\peripheral\temperature" is workin good. I didn't make any change in code. Some ideas?

31
views
no
votes
1
answer
Last activity 2017-06-07 13:39:27 +0200 by Bjørn Spockeli flag of Norway

Set a name in ble_app_beacon example in Nordic SDK 12.2.0 ?

Hi, I want to advertise the beacon with its name visible using the ble_app_beacon example but not able to understand how to proceed. With this, I am not getting how can I Reduce the manufacturer specific data in this Example code.

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