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...
I'm using the nRF52832 with softdevice s132 and SDK14 with ARM GCC
I'm trying to set up the SAADC peripheral to read battery voltage, and I can get everything working as...
Hi all, We use a kind of widely used nrf24l01 module in our product developement.It use the nodic's reference design of nrf24l01 with an external pa/lna.TXEN and RXEN of the...
Hello! I have an Android phone and nRF52840 as a peripheral. Now I want the peripheral to have a whitelist with exactly 1 peer with whitelist being dropped at button press...
I read in many blogs that I can use access layer directly without models to communicate .
So access layer is under mesh?
means that can i send data to remote node(out...
Hello,
I have a NUS link between 2 nRF52840 (several systems like that) that I want to secure without human intervention (a kind of pre shared keys in code).
What is the...
Hello,
I a developing a system which consists of many BLE beacons over a given area and communicated between them forming a mesh. I would like to know whether nRF51822 can...
Hi
I want to struct ble multi link among several nrf52840
I merged ble_app_uart_c and ble_app_multilink_central but, It doesn't work.
The central is flashed with...
Hi,
I am trying to understand the design of the battery monitoring circuit of the Thingy52. I have few quiries:
1) The source resistor of the resistor divider network...
Probably, I am having a problem with finding the proper query phrase.
I have a sensor (Hall-type sensor) that generates pulses, and I need to count the total number of pulses...
Hello,
I am using
nordic nrf52 SDK version : v15.2.0
Freertos version : V10.0.1
The system has hardware timer which runs at 6.4KHz. For every 1.6 KHz, from timercallback...
Hi
AfterI updated the nrf_Connect v2.02 IOS version. I found that disconnect will happen when key in the bonding code "123456".
And my code never has this issus with previous...
Hello to all,
I am using nRF52840 DK with SDK15.0 and SES. To communicate with MS5540C I have used SPI master sample example but getting some incorrect results.
Almost...
I get a lot of error after just adding usbd source code into makefile. error: unknown type name 'NRF_USBD_Type', error: 'USBD_INTEN_ENDISOIN_Msk' undeclared here (not in a...
Hi, I am new to Nordic. We are using NRF51822 chip with S120 version of softdevice. Recently we made few changes in SDK code running on nRF51 controller chip. Is there any...
