Nordic DevZone

Recent and unreplied - Help your fellow developer and earn points!

Not Answered
mqtt subscripe multiple topics 0

Hi guys, In the iot sdk in mqtt.h there are typdefs for "mqtt_topic_t " and "mqtt_subscription_list_t". I'm trying to set several topics (5) and subscribe to them. ...
- iot mqtt nrf52
1056 views

0 replies

Started over 7 years ago
by TY
Not Answered

iot SDK coap random timeouts 0

Hi, I am using nrf5832 that is running a coap server example. I have modified it a little so it reads sensor data via i2c and returns the data using the coap callback. ...

467 views

0 replies

Started over 7 years ago
by nav87
Not Answered
Commercial cheap smartwatch with BLE, Heart Rate and Accelerometer 0

Hi, I would like to receive some suggestion about finding a CHEAP smartwatch / wristband already available that has these minimal features: BLE (with SDK / GATT profiles...
- martwatch
1402 views

0 replies

Started over 7 years ago
by mattewre
Not Answered
Assembly and C mixed programming issues 0

Compiled with Keil4 software compilation and C of the mixed program, the error is:Branch offset 0x00000228 out of range of 16-bit Thumb branch, but offset encodable in 32...
- keil
- nrf51822
709 views

0 replies

Started over 7 years ago
by lohc
Not Answered

Looking for NRF module with accelerometer 0

Hi, I am currently working on a prototype with Silicon Labs Thunderboard sense. I am looking for a replacement product that has NRF BLE module. All I need is a BLE module...

659 views

0 replies

Started over 7 years ago
by 6thsense

Recent in Nordic blog

On nRF Connect for iOS and its Unnecessary BitField Collection in Swift

Dinesh Harjani

For the longest time we’ve had this idea, of turning one of our most-used Swift Collection Types into a simple one-instruction comparison call, down at the assembly level, to check whether an element belongs…
- 23 Jul 2020
Measuring PSM Sleep Current on the nRF9160-DK

notsane0

Overview In this blog, you will measure the PSM floor current for the rev. 2 version of the nRF9160 SiP. Requirements Hardware You will need: an nRF9160-DK (the one used here was v1.0.0). Be sure that…
- 7 May 2020
Developing for the nRF52820 with nRF5 SDK v16.0.0

bjorn-spockeli

Please note that this blogpost is now deprecated as the nRF52820 is fully supported in nRF5 SDK v17.0.0. We recommend using SDK v17.0.0 for nRF52820 fimware development. Introduction The nRF52820 IC is…
- 19 Mar 2020

Latest guides

Bluetooth low energy: Wireless timer synchronization among nRF5 devices

Audun

Introduction In a variety of use cases there is a need to share a common clock among multiple devices. Such a common clock can be used for many purposes, for example by having each node in a network perform…
- 12 Jul 2016
nRF5x: General PCB design guidelines for nRF52 series

FormerMember

When designing a PCB with a high-frequency radio onboard certain rules should be followed for optimal radio frequency (RF) performance. This guide will provide some general PCB guidelines that can be used…
- 11 Jul 2016
Software Development Kit: Migrating to Peer Manager

Øyvind Rønningstad

The tutorial has been updated for SDK v11, which contains the production-ready release of Peer Manager. The original tutorial can be found on this page, below the updated tutorial. #Migrating to Peer…
- 8 Apr 2016
Bluetooth low energy: Bluetooth low energy Characteristics, a beginner's tutorial

MartinBL

Before we begin Table of content Topics that will be covered include: Before we begin Basic theory Attribute tables in nRFConnect Bluetooth Low Energy application Description of the example Adding a…
- 18 Mar 2016
Bluetooth low energy: Bluetooth Smart and the Nordic's Softdevices - Part 2 Connection

Hung Bui

This blog series was created as an attempt to fill in the gap between how Bluetooth Smart is described in the spec and how you can use our APIs and event from our softdevice to do what defined in the spec…
- 1 Feb 2016
Design Examples: Capacitive Touch on the nRF52 series

Einar Thorsrud

Important updates: Due to erratum 84 (COMP: ISOURCE not functional), capacitive sensing using the relaxation oscillator method is not usable in a real product with the nRF52832, as it will only work reliably…
- 31 Jan 2016