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nRF9151 LTE-M (SDK 2.9.0) – High MQTT publish latency (India roaming eSIM) causing severe battery drain 0

We are developing a battery-powered medical device using nRF9151 with nRF Connect SDK v2.9.0 , where data is transmitted to AWS IoT Core using MQTT over LTE Cat-M . While...
- development
- software
- lte-m
- nRF Connect SDK
- nRF9151
- low-power
18 views

0 replies

Started 1 hour ago
by Milan Pipaliya
Not Answered
IEEE 802.15.4 MCPS interface for teaching purposes – alternatives in nRF Connect SDK? 0

Hello everybody, I am a research assistant at a university , responsible for maintaining and porting existing student lab exercises from the legacy nRF5 SDK to the nRF Connect...
33 views

0 replies

Started 3 hours ago
by hort
Not Answered
Why is the output from the multicell location REST API (Ground Fix) changing day to day despite sending the same cell information? Why is the ADV parameter not used when doing Cell Locationing (Ground Fix)? 0

The output from the REST API when doing multicell locationing changes from day to day even when the inputs are the same. Why is this the case and is it possible to keep the...
- software
- nRF9160
- lte-m
- nRF Cloud
- Evaluation
19 views

0 replies

Started 14 hours ago
by leo_nam
Not Answered
Discrepancy between SAADC Input Configuration (P0.04) and Physical Pin (P0.05) despite Full Chip Erase 0

I am encountering a strange hardware/software mapping issue with the SAADC on an nRF52833 DK running on Zephyr (NCS) . Using VS Code nRF Toolchain and SDK (V3.2) The issue...
29 views

0 replies

Started 17 hours ago
by caneralpsaygin
Not Answered
PPK2 shows 9–12 mA idle current on Mac/Linux laptops, but ~600–700µA on my team member's desktop for same custom nRF54L15 board 0

I’m facing a Power Profiler Kit II (PPK2) measurement discrepancy that appears to depend on the host PC , not the target board or firmware. Target setup Custom board...
- development
- Failure Analysis
- debugging
- Confusion
- nRF54L15
- nrf52840
- low-power
- usb
46 views

0 replies

Started 18 hours ago
by Anik Datta

Recent in the DevZone Blog

PDM example on the nRF52832

Jimmy Wong

PDM stands for pulse density modulation. PDM is a form of modulation used to represent an analog signal with a binary signal. In a PDM signal, specific amplitude values are not encoded into codewords…
- 20 Jul 2016
How to test RF test example with Gazell instead of wiring

Brian Kim

One of most frequently asked question from customers is howt to test RF to evaluate RF performance on their device. The precondition of this is to connect UART between PC and DUT(Device Under Test) prior…
- 17 Jul 2016
Setting up IPv6 over BLE using nRF52 Series and RIOT OS

kaspar

This tutorial shows you how to get started with RIOT OS on nRF52832 using IPv6 over BLE communication. To fully understand this tutorial you will need to have minimum knowledge of Linux environment…
- 13 Jul 2016
nRF Connect v1.0 release

Bjørn Inge

We are happy to announce that nRF Connect has reached v1.0 production release and has been made available on the nRF Connect for desktop product page on the Nordic Semiconductor web site. About nRF Connect…
- 13 Jul 2016
Espruino - Program nRF5 devices in JavaScript - See the Puck.js kickstarter

Michael Dietz

Quick start (< 5 minutes) Download the Espruino Web IDE from the Chrome web store. Drag-and-drop espruino_nrf51.hex or espruino_nrf52.hex to your nRF51/nRF52 Development Kit. Espruino will run…
- 11 Jul 2016
Setting up IPv6 over BLE using nRF52 Series and Contiki OS

wbober

Support for nRF52 Series in Contiki OS is no longer maintained and is pending removal. Please check out nRF52x series support in Zephyr OS which offers BLE over IPv6 connectivity. This tutorial shows you…
- 6 Jul 2016