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BLE beacons for sensor data, replay attack & spoofing 0

Hi, I've been working on a way to detect and prevent replay attacks when beacons are used for sensor data. This is mostly used for home automation sensors, where I have BLE...

1467 views

0 replies

Started over 7 years ago
by BLE_lp
Not Answered
BLE task FreeRTOS priority 0

Hi, For our current application we have migrated from SDK 13 to SDK 14. We are using RTOS to handle the functionalities of our application. We replaced our own task for handling...
- sdkv14 s132v5.0
1752 views

0 replies

Started over 7 years ago
by Siddhesh
Not Answered

nrf_dfu_flash_wait never return 0

hello, I use nrf51822 + S130 + SDK12.2 in my product, nrf51822 work at central + peripheral mode，and i use nrf_duf_flash module for my dfu funtion. The problem is, i...

468 views

0 replies

Started over 7 years ago
by Ian
Not Answered
How to generate random keypass ? 0

I want to communicate Central and peripheral devices with KeyPass. Also I want to generate keypass in Peripheral device. But keypass should to include symbols, low/upper case...
- keypa
- nrf51822 sdk8.0.0
- s110
- keil
984 views

0 replies

Started over 7 years ago
by purgoufr
Not Answered
Unable to see NRF_LOG BLE SDK 12.3 0

I am using SEGGER Studio on MacOSx. When use the latest mesh SDK, I can run the light_control example and see the debug log in the Debug Terminal of SEGGER Studio. However...
- nrf51822 nrf_log segger
977 views

0 replies

Started over 7 years ago
by zed

Recent in Nordic blog

SD card interfacing

Salman

Hi, I have written SD & SDHC card routine for reading, writing and erasing data from SD card. It used the hardware SPI of nRF51822. NOTE: 1)Define the PINs of SD card first before initialing. 2)Define…
- 10 Oct 2014
How different BLE packet types influence throughput

Stefan Birnir Sverrisson

There are several types of write operations, write request with authorization, write request without authorization and write command. You can see message sequence charts for those messages here and he…
- 9 Oct 2014
Measuring Lithium battery voltage with nRF51

Stefan Birnir Sverrisson

Here is an example of a hardware setup to measure the voltage on a Lithium battery with a voltage divider and a connected capacitor. The Lithium battery typically has a voltage range of 2.7 - 4.2 V and…
- 2 Oct 2014

Latest guides

nRF5x: Current measurement guide: Introduction

Stian Røed Hafskjold

###Other relevant posts A concise guide to equipment setup, and how to use the development kit for current measurements can be found here: Measuring current with PCA10040 v0.9.0 A post that describes…
- 1 Dec 2015
nRF5x: General PCB design guidelines for nRF51 series

Petter Myhre

When designing a PCB with nRF51, nRF51822 or nRF51422, there are some rules that should be followed in order to get a good working radio/system, with a maximized range. General rule The RF part of the…
- 13 Nov 2015
Software Development Kit: nRF5 SDK Scheduler Tutorial

Einar Thorsrud

2019-02-08: Updated tutorial to cover nRF5 SDK version 15.2. Introduction Scope The following topics will be included in this tutorial: Configuration of the Scheduler library. Using the scheduler with…
- 9 Nov 2015
Bluetooth low energy: Bluetooth low energy central tutorial

Anders Strand

Scope Topics that will be covered include: Before we begin Necessary equipment and software Necessary prior knowledge Setting up the example projects Background theory Central and peripheral roles…
- 4 Nov 2015
Software Development Kit: nRF5 SDK Application Timer Tutorial

Einar Thorsrud

2018-11-23: Updated tutorial to cover SDK version 15.2. 2019-02-08: Improved example project (SDK 15.2) and updated instructions accordingly. Introduction Scope The following topics will be included in…
- 30 Oct 2015
Bluetooth low energy: Bluetooth low energy Services, a beginner's tutorial

MartinBL

Before we begin Scope Topics that will be covered include: Before we begin Necessary equipment and software Necessary prior knowledge Some basic theory The Generic Attribute Profile (GATT) Services…
- 26 Aug 2015