16,670 questions

I use IAR to debug nRF51_SDK12.0.0 ble_app_uart example application. The origin application is for nrf51422, and my device use nrf51822. Therefore, I first change the device to nrf51822 on the example application. I also preprogram the softdevice 130 ... (more)

I'm using nRF52+SDK11.0.0+S132 with an application based on the ble_hrs example.

In main(), if I call nrf_drv_spi_transfer() to configure some SPI sensors before calling ble_advertising_start(), then my code spins in spi_xfer()'s while (!nrf_spi_event_check(p_spi ... (more)

Hello, I'm using BLE, RTC and app_timer to blink a led. I blink the led 10 times when I receive an order from BT (by means of NUS), and then by means of RTC.

uint32_t initBlink()
{
    app_timer_create(&m_seq_timer_id,APP_TIMER_MODE_SINGLE_SHOT ...

I am a newbie in embedded programming. I want to encrypt some advertising data using aes-ecb API, provided by the softdevice but I am not getting any encrypted data after calling sd_ecb_block_encrypt function. I am using this function to encrypt ... (more)

Hello

We are about to move an old design based on the NRF51 to the more powerfull NRF52. In this context we would like to use some of the new API’s that has been introduced in the latest SDK ... (more)

We are writing an Android app for our own peripheral (nRF51-based). We know the handles for all the characteristics.

On Android gatt.discoverServices() needs to be called, and wait for onServicesDiscovered(), then getServices(), before the Characteristic object is available.

This ... (more)

Hi,

> Context:

I run a baremetal application that I would like to enhance with bluetooth. I am considering a BLE module from NS.

• I currently have a SoC (nanopi m1) and I don't want to fiddle with the BLE ...

Hi.

On nrf52, according to http://infocenter.nordicsemi.com/inde... it takes about 0.36 ms for the HFXO to start, and I guess that includes the time for it to become stable.

But as shown in https://devzone.nordicsemi ... (more)

Hi, I am thinking of using the nrf24l01 board from Banggood ([here]) to build a transmitter/receiver set for r/c model planes. However one of the things I would like to do is implement a range check function. On ... (more)

Hi there, I'm definitely a newb when it comes to wireless communication and communication protocols so I'd like this question to be answered at a higher level than what I've read on a prior "Mass storage with ... (more)

I have an odd situation. I've been using an iPhone 5 and 6 to connect to, and test against, both an nRF51 (redbear nano) and the same code built for nRF52. It works fine.

Today I provisioned an iPhone ... (more)

Hi,

Is there an extensive documentation about programming process of a nrf52832 using keil? I just spent hours figuring out that I had to use Softdevice erase flash algorithm to get rid of a laconic "programming failed" under keil. I ... (more)

Hello Nordic,

I just read the news from may about the arduino primo and i am really exicted!! I have been tring to decide between arduino due, or some complex ensemble of nrf52 module with DIY circuit im not sure ... (more)

the application is examples\peripheral\csense , cap sensor can sense my touch, but when I cover a 1mm acrylic on the cap sensor, will not sense my touch. so I want to know how to change the compare time? I ... (more)

Can i Program an external STM32(m3) board through SWD of nrf51DK?

i can program 51882 external board.it is ok.. but i need to progam an external stm32 board with jlink port.

I just use the nrf51dk as JLink ... (more)

Hey I am trying to create a blinky project from scratch on System: MAC OSX Eclipse Neon GCC 4.9

I am trying have it eclipse managed make.

I am at a point when after the compilation during the linking ... (more)

Hey Guys,

I am trying to create a workflow for creating new project from scratch in eclipse, traditional way with nRF5 sdk provided make file is not scalable and it really painful.

I go the inspiration from this page here ... (more)

We are using a MMA8452Q accelerometer connected to an nRF51822 via TWI using the twi_hw_master. Reading the WHO AM I register is the first attempt to get the TWI running but no data is returned.

#define ACCELEROMETER_ADDRESS       0x1C           // if SA0 ...

I am currently dealing with a strange problem when trying to use DFU OTA. When I enter DFU mode on Master Control Panel and try and update I get the following two error messages. "Device does not have required DFU ... (more)

I'm sending a write authorization reply using sd_ble_gatts_rw_authorize_reply() in response to a standard Write Request with one byte of data. When I set the gatt_status to BLE_GATT_STATUS_ATTERR_REQUEST_NOT_SUPPORTED, the reply() function returns NRF_ERROR_INVALID_PARAM. However, if I set the gatt_status to ... (more)

Setup

nRF52 - Rev 1 SD 3.0.0

internal RC for timer

utilizing the provided secure bootloader, and the DFU buttonless template source.

Created/compiled the 2 images so I have: - bootloader - App - SD 3.0.0

perform the complex ... (more)

Hi ,

I am working on one application in which i am using UART service. Whenever i am connecting to device using nrf connect or master control pannel app, UART service empty massage appears.

Why the service is not getting discovered ... (more)

I have created a nRF52 based peripheral device which is used to stream sensor data to a connected central device, usually an iPhone. I can stream data, reliably to the iPhone up to 104 packets per second with very little ... (more)

I have used nRF toolbox to update bootloader and firmware to my nordic device. I was previously using iOS9 (I believe 9.3.5 - whatever the latest version was before iOS10).

Now, I notice two problems.

Within nRF toolbox, in ... (more)

Hi,

I want to run BLE mesh network example on my Dev board to understand it better. I am running it on SDK v8.1 and using ble_app_proximity example S130.

Following below link: https://github.com/NordicSemiconducto...

I am using ... (more)

I'm having no success getting the FDS (Flash storage) to work on my nRF52 PCA10040 board with SD130 2.0.0 and SDK11. I am using the Nordic example on Github here: https://github.com/hubuhubu/nRF52-fds...

My system ... (more)

I am implementing mqtt client on Nrf52832 with the example provided in the IoT SDK. I am looking for the correct way to make the client to run with Non-Nordic socket stack. The details of my problem is in the ... (more)

Hi,

As a beginner, I'm trying to have CDC J-Link Uart port work with my laptop. I'm using nRF52 board. When connecting the board to my laptop (windows 10), it displays the following in device manager:

Actually, I ... (more)

I need to get three ADC data from acceleration sensor with nrf51822. I tested getting a ADC data using simple_adc_pca10028(Keil_v5/ARM/Pack/NordicSemiconductor/nRF_Examples/11.0.0-2alpha/peripheral/adc_simple) example. But I don't know how to get multi ... (more)