I am working on the proj that needed 2 MCU and nrf51822 work as slave.
I would like to know any ref on how to firmware upgrade on board without external tool?
We're looking for a Nordic nRF51822 based low profile/small USB dongle that we can use for our iBeacon software.
It would need to come complete with casing and the ability...
Hi all,
i want to establish connection between two threads in cmsis-rtos, can i use
1) semaphore to do this?
2)message queue should be used or any other ipcs can be...
Hi,
I have two CPU in our product. (STM32F2 and Nordic nrf51422).
I use serialization function to link those two CPU(refer to ble_s110_serialization sample)
But I find...
Hi,
My behavior is as follows
Turn on my device(use 51422) and advertising(2 Service and 3 Characteristic)
Turn on my cell phone(Samsung Note3),scan my device...
Hello:
I used analog IIC write MPU6050. Again after power download programs, mpu6050 can run up there ACK response. But the debug will not run. Simulation IIC because no...
Hello!
How can I communicate with my nRF24L01+ and nRF51822 at the same time. I can set up same channel, CRC-mode and I don't use ESB. But what about address? How do I set...
Hello,
I am currently working on a project using a custom board with nRF52840 + nRF21540 . I am trying to measure wireless performance using Direct Test Mode (DTM) , but...
Hi, when I use OTBR to commission a matter bulb(52840DK), I found this log:
I: 7371 [DL]CHIPoBLE connection established (ConnId: 0x00, GATT MTU: 247) D: 7448 [DL]Indication...
Hi,
I have been trying to use the radio_test example application to try and accomplish my goal but no success so far. My goal is to be able to compose an advertisement packet...
Hello, we would like to use the 4th reference circuit with the QIAA footprint from the Nordic nRF52840 chip's datasheet. However, in our PCB design, can we change the placement...
Hello,
I'm attempting to write to a ble characteristic but when i call bt_gatt_write, I get BT_ATT_ERR_INVALID_ATTRIBUTE_LEN, I have tried to send the same command using...
Question: I am working with the Ebyte E73-2G4M08S1C module, which is based on the nRF52840 . The module provides D+ and D- lines . Can these lines be used for debugging and...
Hello,
I'm trying to put the nRF54L15DK into System Off mode, using sdk & toolchain version v2.8.0.
The provided example (\samples\nfc\system_off) works on my evaluation...
Hello Team, We are currently building a circuit using nRF52833 QDAA QFN40 ( Configuration 5). We would like to know if there are dedicated pins to be configured for BOOT as...
Hi everyone,
I'm working on a Matter based project on the NRF52840 SoC. Since it's an Iot project project we need to reduce power consumption at it's minium for lifetime...
We're starting new medical research project where we have to send data at rate of around 4Mbps from the sensor array for a distance (omnidirectional) of around 2 meters. The...
Good day,
I am learning how to program NRF52832 chips using the NRF52 DK. I am using Segger embeddded v8.2 for the moment as I have not yet learnt how to use the NRF Connect...
Hi,
We have a project based on NRF52811_xxAA_REV1 running on multiple devices without any problem.
Nordic announced recently newer version of SoC (REV2, aka B0) and since...
I have been working on asset tracking v2 application code with thingy91 board, as it is not working. I have updated the modem firmware with latest one (thingy91_mfw-1.3.7_sdk...
