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 community and Nordic support.
Very briefly about my profile: I have worked with NRF52 chips in my previous company for about half a year and have a good understanding...
in my tutorial I need to implement an I2C or TWI sensor on a peripheral BLE. In SoftDevice Software in Example-> Peripheral there are 2 methods 1) twi_sensor or 2) twi_master_with_twis_slave...
I used nRF Mesh app both iOS and Android versions to communicate with
nrf5_SDK_for_Mesh_v2.0.1_src\examples\light_switch\client
and
nrf5_SDK_for_Mesh_v2.0.1_src\examples...
The system consist of two nRF52832, one acting as SPIM and the other one as SPIS. I hace created a while loop always asking for certain amount of bytes but the MISO line on...
Hello, I am new to nRF micro-controllers and using Netbeans. I have cloned the repo of a project I would like to run, which builds successfully, and am getting the following...
Two questions. 1) What is the point of the watchdog ISR? In the Ambiq Apollo 2 microcontroller, the watchdog ISR fires and if the CPU doesn't pet the watchdog slightly after...
Hello I have problem with Mesh Serial Example and Interactive_pyaci, it works just in Debug-Mode. I use nRF52840, nRF5_SDK_15.0.0_a53641a, nrf5_SDK_for_Mesh_v2.0.1, Python3...
Hi I am trying to optimize my nrf51 app for low power. However I can just reach 0,500mA when just advertising (advertisement only is ok for me). Do you know or do you have...
I am trying to integrate the NFC read/write functions in my BLE application. I have used the writable_ndef_msg project functions to start with. The project on its own works...
Hello
For my final year project at Varsity I am creating my own smartwatch + edge computing IoT system. The watch and infrastructure needs to be as low-cost as possible...
Hi,
I am using a nRF52 DK board and programming in python.
After performing a successful DFU over BLE i want my Target device to be disconnected from the nRF board so...
thanks for the answer on the previous post.
What I came to know from our firmware engineer was that your initial version of the Android app could not support
1. multiple...
I want to know 2 things about the nRF Mesh app:
1) Is it possible for the Mesh app to provision non-proxy nodes via the proxy nodes?
2) I think it's possible to subscribe...
I have a project using FreeRTOS with Tickless idle enabled, SDK 11.0.0 alpha and the S132 soft device. Currently the project is consuming ~6.5mA average, ~5.2mA if advertising...
