Connecting nrf21540 to a nrf52840. 840 GPIO default state is input, input buffer connected. One of the 840 GPIO pins is connected to the 540 PDN pin.
1) If the 840 gets...
I am currently developing a firmware application on the nRF5340 where I need the device to function in dual role :
As a Bluetooth Mesh Node , communicating with other...
Hi,
If the following function is used, how to solve this error:
#include <nrfx_reset_reason.h>
void check_and_clear_reset_reason ( void )
{
// 获取复位原因
uint32_t...
2025-06-13T08:43:42.649Z INFO Initialising the bundled nrfutil device 2025-06-13T08:43:42.652Z DEBUG Started watching devices 2025-06-13T08:43:44.400Z INFO Using the bundled...
We are in the process of finalizing the RF transceiver chip for custom protocol development.
Please suggest the suitable chip and any reference implementations available...
Hi I am developing in 54L15. Now use DPPI to link
TIMER10's PUBLISH_COMPARE[3] ---> RADIO SUBSCRIBE_STOP,
it works fine.
Now I want to trigger a GPIO signal through...
Hello,
I was wondering how to combine the
SPI master example code with Ble_app
-uart example code. So far I have tried many things such as cobining
the RTE file of these...
Hi there, thanks for your help in advance!
I have tried the nrf51-ble-ancs-nus sample from github and making it work on a 51822 EK board, i.e., it can receive notifications...
I have my radio chip set up so that it pairs with an iOS device via an encrypted bluetooth connection. Everything works great -- however I'd like to be able to "unpair" from...
Hi,
we are using the chip nRF51822 CEAAE00.
We want to use the pin 0 as output. It is configured as below
NRF_GPIO->PIN_CNF[0] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos...
Hi,
I using nRF51822, S110 and NUS to send the data to the phone.
When sending the data, I using ble_nus_string_send function.
I need the execute time to the phone...
When scanning for peripherals using the Master Control Panel Android app, most of the various BLE devices scattered around me show up with a "connect" button next to them...
I have a development board with the AC variant, but for my custom board I have an AB. I am able to flash code using Keil to the development board, but when I change the device...
Can anyone suggest an I2C LCD driver for use with the nrF51822? We will likely be driving a 96-segment LCD but a dot matrix LCD may be an option.
The application is for...
I get the following error on doing OTA DFU using an Iphone with IOS V8.4.
Created .zip files using nrf.exe
Commands used
nrf dfu genpkg --application...
Hi everyone,
We're working with nFR8002 devices, and it works fine most of the time.
Even after losing the link intentionnally (Bluetooth stopped, or walking out of Bluetooth...
This question devzone.nordicsemi.com/.../ appears to show that S132 expects the FPU to be available and activated.
Does the S132 really need/use the FPU or is this an artefact...
Hi,
I know that when advertising in non-connectable mode, the fastest advertising interval is 100ms. I have some questions about this:
Is there any document explaining...
I have been using NRF51822 for some time as BLE chip with services.
For some debugging reasons I need a faster stream method...
I looked at Gazell and found it simple to...
