I have an application for the nrf52840dk_nrf52840 board where I am using printf() to print some messages. All works most of the time and the messages are shown correctly on my serial console. However,

#nrf52840

Hi Leo, The Adafruit Sense is much like the Arduino Sense, both use the nRF52840 but use a modified bootloader. They have been designed to work with the Arduino platform. Luckily work porting the Ardu

#nrf52840

Hi Leo, Zephyr seems to support the nRF52840 Feather Express, but not the Feather Sense: https://docs.zephyrproject.org/latest/boards/arm/adafruit_feather_nrf52840/doc/index.html This is the right pla

#nrf52840

Hello Zephyr team! I have a question about board support and I also need your help building an example project. 1) Does Zephyr support the board below? How would I go about using its sensors? https://

#nrf52840

Hello, I am investigating if the implementation of contiki-ng RPL border router can be useful in zephyr. I am trying to set up the echo client example of zephyr using the overlay-802154.conf file in o

#nrf52840

In general, that's left as an exercise for the user, as far as I know. "Nikos Karamolegkos via lists.zephyrproject.org" <nkaram=ics.forth.gr@...> writes:

#nrf52840 #crypto #dts

Hello, I am studying this which mentions that the MCUboot is placed to immutable section of flash. How is this implemented? I can not see anywhere information about immutable MCUboot partition.

#nrf52840 #crypto #dts

I solved the issue. The size should be multiple of 4096 (sector size). An other problem that I am facing is that when I run the lwm2m-client over openthread and the last address of the program is 0x59

#flash #nrf52840

Hello, I have made a device DTS overlay file to create my partitions in flash, so I have 3 different partitions (banks) lets say A, B, C respectively. It seems to work. However, each time I am trying

#flash #nrf52840

Hi, probably a very simple question. How do I get in my C code the MAC address which is printed on the nrf52840 dongle? Thanks Marcel

#nrf52840

Hi Nikos, The Cryptocell requires proprietary software that is not part of Zephyr. If you’d like to use the Cryptocell I recommend you take a look at Nordic’s Zephyr-based SDK, the nRF Connect SDK: ht

#nrf52840 #crypto

Hello, I am going to use mbedtls library in order for sha256 hash calculation and ECDSA verify using nrf52840-dk. I can not find any configuration parameter for hardware acceleration. The device suppo

#nrf52840 #crypto

Hi all, I would like to ask you if I can change the lwm2m observer period. There is enough delay (some seconds), after calling lwm2m_engine_set_u8("5/0/3", STATE_IDLE) until the server get informed.

#nrf52840 #networking

Are you in interruption context when trying to read/write in the callback ? I doubt this is a good idea to access a filesystem from such place... (may sleep, may block...) You should defer the read/wr

#nrf52840 #nvs

Update: if I write and read in a function without some condition (i.e button is pressed) works fine. The problem is when the write/read process is taking place to button_pressed callback function.

#nrf52840 #nvs

Hello again, I am following the NVS sample to create my own code in order to write to the NVS filesystem. The idea is to change a uint8 variable in the NVS when the button is pressed. Therefore, when

#nrf52840 #nvs

I just meant that OpenThread uses mbedTLS as it’s crypto library, for instance: https://github.com/openthread/openthread/blob/master/src/core/crypto/sha256.cpp#L41 Regards, Robert

#nrf52840 #networking

Perfect. I will prepare the configuration for the contribution. I made the changes you proposed and worked (I set MAX_PACKET_SIZE to 1024). Just to be clear by what do you mean by "OT use mbedTLS inte

#nrf52840 #networking

Hi Nikos, Contributions are always welcome, would be also good to contribute the overlay-ot.conf to the lwm2m_client sample, once you have configuration that is proven to work. We even have an outstan

#nrf52840 #networking

Thanks Robert, with your help I managed to make the OTBR work (I can make a documentation as contribution for the project if you are interested). Although, the device is registered to the leshan serve

#nrf52840 #networking