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...
In my application we have an ADC input pin which we want to connect to comparator input too. Based on the highlighted statement in section 7.6.1 Can the same analog pin be...
Hello,
since a few weeks I have the following problem with the nRF Connect for Desktop app on Linux (Arch Linux specifically). The runner launches and I can install and...
Hi,
starting the NCS v1.5.0 "Bluetooth: EnOcean" sample on nRF52840 DK, the following error occurs:
Bluetooth init failed (err -35)
Any suggestions? Thank you.
Hello
I'm testing multiple frequencies to ensure smooth ultrasound control.
Frequency can be generated via 'APP_PWM_DEFAULT_CONFIG_1CH (period, pin)'. But it seems difficult...
Hello there
I hope you are doing well
I am looking for rf module that meet my requirements, please check these requirements below and give me any of your product meet...
Hi Nordic,
I am using one NRF52840 named A chip(DCDC mode) to provide VDD power supply to another NRF52840 named B.
A is using VDDH with battery 4.2V power supply.
B...
Hi,
I am using nrf5340 kit. I would like to enable and test power management in mesh chat example.
1. Can you please tell me the usage of below config file usage.
#define...
Using: NRF52840, SDK 14.2, S140
My GPIO initialization code is as follows. This is the first thing that happens in main.c.
Here are logic analyzer traces of 2 GPIOs...
Hi
We would like to adjust the pin matching of our nRF52805 design since the measured S11 coefficients in Tx mode are not very good (well above -3dB). The values for the...
Hi.
I am testing a wearable device based on nRF52832 and it does not have a reboot button.
Sometimes the device gets stuck and does not appear on Bluetooth scans. Rebooting...
Hello, I'm in Zephyr OS build v2.3.0 and NCS v1.3.0. I need to reprogram UART0 baudrate at run time to 38400. After having obtained the uart node
uart = device_get_binding...
I want to transmit UART and Bluetooth through 12bit ADC 12k sampling.
I downloaded the following example and verified the ADC-UART AND Bluetooth communication. https://github...
Hi,
I use the nRF52840 chip, which is designed as a module.
I use nRF9160 DK to burn the hex file.
1.And i can use nRF connect to read the ic of the module.
But...
Hi there, We're using SDK 16.0.0_98a98e2. Our setup is a PC running BLE Central connecting to 2 nRF 52840 running as BLE peripherals. We use the provided BLE UART example...
