# 36 questions

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• x
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## nRF52840 with own hardware design

I have my own hardware design with the nRF52840 on it. I more or less copied the whole radio/antenna part from the dev kit reference design. The blinky example works fine on it.

So, I do have two questions ... (more)

68
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## Losing cloud connection, Thread CoAP Cloud example (SDK 0.11.0)

I have troubles with your Thread CoAP Cloud example. I am using:

• Border Router V0.11.0, ethernet (not Wi-Fi)
• cloud_coap_client example, adapted that I send more data (buffer size =256bytes)
• Eclipse
• Preview ...
(more)

48
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So, after upgrade to Thread SDK 0.11, I'm not able to perform DFU again. Symptoms are identical to https://devzone.nordicsemi.com/questi... - this time on nrfutil v3.4, with pyspinel==1.0.0a1 and 1.0.0a2 ... (more)

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## Unable to ping Thread device

Hello,

I have the following setup:

1. A Raspberry Pi 3 B and a nRF52840 Development Kit acting as a Border Router as described here
2. Another nRF52840 Development Kit flashed with the OpenThread CLI example as described here
3. I have an ...
(more)

24
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## Thread cli example on nRF52840dk - USB not recognized

I try to run the thread cli example on the nRF52840dk with the SDK_for_Thread_v0.11.0_84a130f.

Windows 10 throws an error like "USB device not recognized / Error trying to get device description" (translated)

• I tried several USB-Cable, dev kits and ...
(more)

66
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1
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1

Dear Nordic,

However, when I clicked on it I only got the TTM 0.11.0. It seems there is an issue with the ... (more)

55
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1
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1

## Unable to perform DFU over Thread

I'm trying to run the Thread DFU examples on nRF52840, unfortunately I can't get them to work. On the client, I got the bootloader set up and ready, with the client application, I also got the upgrade app ... (more)

46
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## nRF52840 Preview DK and Thread commissioning app

If there an example on how to test the Raspberry PI border router (https://infocenter.nordicsemi.com/ind...) and some nRF52840 Preview DK together with the official Thread commissioning app?

39
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1
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1

## Issue Linking Nordic Memory Module with IAR

Hello,

I'm having issues linking the nordic memory module to my IAR project. Under the project options for the C compiler and assembler, I have included the appropriate directories for mem_manager.c and mem_manager.h. I have also added ... (more)

71
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Hi! I'm developing Thread mesh using nrf52840 with COAP communication. I would like to set a longer timeout and more retransmission tries in COAP. I saw this parameters in openthread source, but after compilation of library with new parameters ... (more)

90
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## How to enable diag of SDK for Thread cli example

Hi Nordic team,

I try to use SDK for Thread v0.10.0 cli example and run diag command, but it is disable as below

Could you tell me how to enable diagnostics module ? Thanks

91
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## Thread border router - IPV6 DHCP problem

Hello everyone!

I've tried to send something from mesh to computer in my LAN via UDP and it works fine. Now I'm trying to implement CoAP with acknowlegements. The problem is that I'm unable to send something ... (more)

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## Openthread CoAP - communication initiated by server?

Hi,

I'm developing multiprotocol applications based on examples from Thread SDK: Proximity/CoAP server and BLE UART/CoAP client. All CoAP communication in this examples is initiated from client by sending requests, but I'd like to have a ... (more)

165
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6
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## NRF52840 Thread example power down 10 mins after USB disconnect

Hello,

I am trying the Thread Cloud COAP Client

<InstallFolder>\examples\thread\experimental\cloud_coap_client

on a NRF52840 PDK. I'm using Thread SDK v0.10.0. The example works as described.

However, when I unplug the board from USB, it ... (more)

59
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## No APP_TIMER_INIT macro in Thread SDK v0.10.0?

I see no APP_TIMER_INIT macro in app_timer.h in Thread SDK. How should I use app_timer then?

103
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Hi,

I'm trying to add Openthread support to my project, which is based on ATT_MTU_Throughput example. I followed the tutorial in infocenter, but I still have some problems in linking stage:

84
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Hi, I wrote an application based on ATT_MTU Throughput Example. Now I'd like to add support for Thread protocol. Is there a possibility for adding OpenThread libraries to Keil project? Here:

http://infocenter.nordicsemi.com/inde...

is only explained ... (more)

109
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1
vote
1

## Thread Border Router v0.10.0: NCP problem

Dear experts,

I've been playing around with Thread since nRF5 SDK for Thread v0.8.0, cloud_coap_client. I use your Border Router example with NCP example running on nRF52840_Preview_DevKit and a RaspberryPi B.

Since I've changed to SDK ... (more)

97
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## What happens if handlers are called at the same time? (nrf51422)

Hi,

I am new to firmware engineering. I have a simple and basic question.

If there's Timer A and B, and both interval is 100ms, what happens to the timeout handler functions? If both timers start at the same ... (more)

146
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2
1

Hi,

I'm trying to get the RSSI of incoming 802.15.4 packets using otLinkRawGetRssi(), but I need only RSSI from one specific device. I tried to use whitelist (otLinkSetWhitelistEnabled(), otLinkAddWhitelist()) and I checked in CLI that whitelist is ... (more)

163
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1
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3

I'm having some issues getting any of the provided experimental Thread examples to compile with IAR version 8.11.2. I'm using an nRF52840-PDK with the SDK for Thread version 0.10.0. Please see the following image ... (more)

62
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I noticed that when upgrading to the latest Thread SDK that my devboard stopped booting. I was following the instructions as per the documentation but noticed that my user application stopped booting. I was following the instructions to the tee ... (more)

66
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I followed this tutorial in Infocenter and installed everything http://infocenter.nordicsemi.com/inde..., but I have a problem with Thread examples, programming output looks normally:

and I also programmed board with a 802.15.4 example without any problems ... (more)

313
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1
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1

## Run BLE & Thread on nRF52840

Hi,

We are interested in nRF52840 and we know that nRF52840 supports both on IEEE 802.15.4(Thread, ZigBee) and IEEE 802.15.1(BLE).

However, does nRF52840 can run BLE and Thread/ZigBee at the same time?

What ... (more)

271
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Hi,

I have a newbie question. Is it possible to implement a POTS voice quality like an intercom system using Thread (assuming all the end points are using nrf52840 SOC)?.

Thank you.

114
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## 802.15.4 / Thread current consumption

Anyone done or seen current consumption measurements for the Thread SDK on nRF52840?

I need to understand relation with other technologies and other chipses on this, and I of course expect the nRF to be outstanding :) Numbers for routers with ... (more)

103
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## TFTP and Other IoT SDK Examples For Thread

While reviewing the Thread DFU examples I saw that Nordic ported the IoT CoAP library to thread. Is it possible to use other IoT libraries with some modification? Obviously only the UDP based ones will work.

If not, are there ... (more)

761
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## Range/power: IEEE802.15.4 (thread) vs. Bluetooth 5

Dear experts,

Comparing:

• Bluetooth 5, Coded PHY (longest range), 125kBit/sec

Questions:

• Which technology has longer range?
• Which technology has better range/power ratio?
• What current consumption can I expect of nRF52840 when ...
(more)

115
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3
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## OpenThread role change resets channel settings

Hello! Based on you example I try to develop a simple HelloWorld example that follows chapter 11 of the specification. It says that to form a network a energy scan should be performed. That works perfectly fine but during role ... (more)

112
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1
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1

OpenThread recently merged a DNS client into the main branch. DNS would be extraordinarily useful because my code accesses content behind load-balancing servers with dynamics IP.

Is it possible to use these libraries now? Or do I need to wait ... (more)

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