# 395 questions

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## Send multiple nus packages once

Hi

I using nrf52832 to implement a high throughput transmit sensor raw data. I found post here talk about send multiple-packages once. I also found this, but I couldn’t compile on keil c and test it. Does any sample ... (more)

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## send and receive data over BLE

hello sir, i am using ble mpu example and it working fine now i want do send some commands from mobile to nrf52832 chip via these commands my application should work.

like if i send command "ON" through mobile then ... (more)

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## Eclipse Compile Error

I really can't rell what the issue is. I did not include any libraries to main function btw. I am using GNU Arm Embedded Toolchain with Eclipse on Linux.

This is what i got from the console when i ... (more)

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## Processing of unexpected Handle Indication messages?

I am using PCA 10040 development boards with soft device version s132_nrf52_3.0.0 to investigate Central/Peripheral communications.

A PCA 10040 acts as a Central making connections to two peripherals, one peripheral is another PCA 10040 board and the ... (more)

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## nRF52832 connection problem with some android device

Hi, I'm using nRF52832 with sdk 13.1.0(softdevice 4.0.2). I had trouble to connect nRF52832 in some android smart device.When I restart Bluetooth,Sometimes there are problems connecting(GATT ERROR 133).Then never connected ... (more)

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## Which HID device type to use?

We are upgrading an existing product to use Bluetooth instead of the parallel port.

It must support >20kbit/sec communications between the device and the host PC.

We are considering the nRF52832 because of it's local processing power.

I ... (more)

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## Macro compilation in C++

I am porting a C++ project that was using version 6 of the SDK to version 14.2 (big leap, I know). I want to use all the new bells and whistles from the new SDK that makes life easier ... (more)

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## [nRF52832] [MESH] [light_control example] Increase server count - not working

Setup:

• 3-10 servers (light_control_server example)

• 1 client (light_control_client example) (provisioner)

• nRF52832

• SDK: nrf5_SDK_for_Mesh_v0.9.2

When I run default configuration 3 servers and 1 client everything works fine.

I tried to increase server count modifing:

• SERVER_COUNT define in main.c ...

(more)

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## nRF52832 pca10040 S132 cannot set Private Resolvable address

Hi,

My board env as below: nRF52832, pca10040, SDK14.2.0, S132

I am trying advertising sample according to the tutorial https://devzone.nordicsemi.com/tutori...

(more)

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## Undefined symbol ble_nus_c_on_ble_evt

Trying to port over code from UART example to muti-connect example.

Made sure include paths are correct, and made sure the following C files are in project.

ble_nus_c.c
nrf_pwr_mgmt.c


Also added following code to sdk_config.h

#define APP_UART_ENABLED ...
(more)

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## nRF52 Constantly Waking From WFE()

I'm trying to put the nRF52 into sleep by using the following code in a loop:

      __WFE();
__SEV();
__WFE();


But I see current consumption at around 5mA still, and when I debug I notice it the processor is constantly ... (more)

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## [bugreport] app_timer_stop() resets RTC1 counter when APP_TIMER_KEEPS_RTC_ACTIVE is set

My setup is as follows: nRF5 SDK 13.1 with s132 5.1.0 nRF52832_AA Keil 5.25pre

I use RTC1 counter for timestamping along with app_timer timers. My get_timestamp() function retrieves it's time value by calling app_timer_cnt_get() and ... (more)

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Hello there. I just recently started programming using the nRF52832 DK, SDK14.1.0 and SoftDevice 132 v5.0 . I tried to follow this tutorial on Github: https://github.com/bjornspockeli/cust...

Right after implementing my own custom service, the ... (more)

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## BLE mesh and Routing for high frequency Bridge sensors

I recently got involved in a project where I am deploying a ble based mesh to understand and monitor bridge vibration patterns. I have been through nRF's mesh capabilities, but they aren't enough high frequency and efficient for ... (more)

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## nRF52832 Power on Reset and nRESET

in my circuit, it takes 17ms for VCC_NRF to go up from 0 to 1.7V and reach 3.0V, but nRESET PIN does NOT to go up to VCC_NRF. what is the potential cause of this problem?

here is ... (more)

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## Error run multi NUS

Hi all, I encountered a problem , when I connect 1 board central to 2 board peripheral via NUS . It connected and discovery success . But at

static void db_disc_handler(ble_db_discovery_evt_t * p_evt)

{

ble_nus_c_on_db_disc_evt(&m_ble_nus_c[p_evt->conn_handle], p_evt);

printf("db_disc_handler [0x%x]\r ...

(more)

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## changing include path of an example

Hello, I would like to copy ble_app_uart_c example to a seperate folder and work with that independently. I looked into the following thread and changed my include paths. https://devzone.nordicsemi.com/questi...

But I am unable to locate config ... (more)

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## Issues building nRF5 Mesh with CMake

I'm having issues building nRF5 SDK for Mesh v0.10.1-Alpha examples. On an Ubuntu 16.04 VM, I have installed the toolchain per the Debian/Ubuntu instructions and was able to build/run the unit tests (although I ... (more)

51
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## Problem with Wi-Fi communication and BLE communication?

Hi,

I am trying to send data to server using ESP8266 WiFi module interface with nRF52832 DK board via UART interface. My problem is when i sent AT command to ESP8266 it get respond but i want to set SSID ... (more)

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## nrf52832 Uart SDK14

Context : I am using a nrf52832 to communicate via UART to a STM32 on a custom board. I've based my work on the Ble nus service example. Main change from the DK is that i don't have an ... (more)

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## Using FDS with BLE and Scheduler

Hey guys,

I'm trying to make the FDS work with BLE and the scheduler. But something doesn't right when I use the Softdevice and scheduler with the FDS.

Must I register something in my ble_stack_init(), I read something ... (more)

20
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## Start advertising after connection's hard fault

Hello all:

I have faced a problem that my device will report hard fault when I try to start advertising after force disconnect the device.

My EV board is nRF52832 and develop with SDK12.2.First I connect device with ... (more)

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## Problem discovering services with lower tier Android devices

Hello,

I have a problem when I try to use cheaper Android phones to communicate with our 52832 chip.

I can discover the peripheral and then connect, but when I device.discoverServices() the software pauses for about 10 seconds, and ... (more)

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## SDK11 132 ble_app_uart domo add dfu no work

Hi everybody : SDK11 132 ble_app_uart domo add dfu no work . This is my code . I don't know how to set RAM.This is my set.

53
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## Current Date Time caracteristics

Hi, everyone, I develope the project with BLE support. In my project I need to define the time server. For this purpose I tried to find any example reffered to it, but no example was found neither in your project ... (more)

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## How to whitelist the peripheral devices from central?

Hello All,

I am using the HRS example as reference from Nordic SDK14.1. I have one central and 4 peripheral devices.

I have the MAC ID's for all the four peripherals. Now, my question how can I add ... (more)

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## Low Power PWM Consumption

I am working with the SDK 12, nrf52832 low_power_pwm example. I am concerned about the power consumption I am measuring.

I am trying to produce a 1khz PWM for an LED (the device I am working on is moving so ... (more)

41
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## Package structure BLE Theory

Hi all , I am learning theory about BLE . I'm exploring the relationship between layer . But I am quite difficult to understand the package structure from upper layer to low layer . So , can you give me overview about package structure ... (more)

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## Help with using TWI with the NRF52832 (SES studio)

Hi everyone,

So I've this arduino code that utilizes the I2C library and made some convertions to it to work with the nrf52832 in the segger embedded studio and when debugging the code never passes the "err_code = nrf_drv_twi_tx();"

function ... (more)

23
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## Potential clash between clear function in Pstorage and BLE NUS string function

We have a potential application where we have to send data over BLE at 3kbps and store in external flash memory at 8kbps. The last memory accessed in external flash memory is stored in internal ROM of NRF52. But when ... (more)

#### Statistics

• Total users: 25688
• Latest user: Carmela Rust
• Resolved questions: 11282
• Total questions: 27855

## Recent blog posts

• ### nrF52 Tutorial: ETM Instruction Trace with Keil MDK

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• ### One minute to understand BLE advertising data package

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• ### One minute to understand BLE connection data package

Posted 2017-12-15 07:10:49 by viewtool
• ### One minute to understand BLE MTU data package

Posted 2017-12-15 04:09:47 by viewtool
• ### Debugging on nrf52840 with GDB from CLI on linux

Posted 2017-12-14 14:02:03 by jfcamel

## Recent questions

• ### Send multiple nus packages once

Posted 2017-12-16 11:11:00 by Jax VierMTech
• ### I can't get 4 channel PWM output

Posted 2017-12-16 07:38:24 by NRF CODER
• ### scan response packet in non connectable mode.

Posted 2017-12-16 07:07:09 by Rahul Sahu
• ### send and receive data over BLE

Posted 2017-12-16 06:15:23 by Rahul
• ### Unique access address BLE - uart ble example

Posted 2017-12-16 04:59:24 by Ali97