I am using nrf52832 IC on my PCB with sparkfun antenna trace connected to it. It was working fine on one of my PCB then I changed the profile of PCB by retaining the same...
Hi
I need to sync a PC with a BLE board. Fixed delay is not a problem, but jitter should be max +/- 1 ms.
Our competitors have solved this issue some how.
As we all...
Hello. Right now, I am connecting an external flash using SPI. The external flash is used for firmware updates. I'm trying to launch sQSPI to access the external flash. I...
I am currently working on the secure_bootloader example (pca10056_s140_ble) for the nRF52840 DK board and am encountering an issue with updating the OTA application. I have...
I am using nRF9160 to develop a product for a client that requires displaying the name of the current carrier on the screen. According to the AT instruction manual of the...
Hi,
I have successfully adapting nRF5 SDK projects(ble_app_uart and usbd_cdc_acm example project) for the nRF52840 dongle by following the nRF52840 Dongle Programming Tutorial...
Hello, I would like to ask if the latest SDK version supports power management on the FLPR core of the nRF54L15. According to this article, the power consumption is quite...
I want to ask general question about antenna designing as I am designing antenna to be used with NRF52.
The picture attached with this message shows a printed antenna coil...
At the moment I'm sending a notificaties during the BLE_GAP_EVT_CONNECTED event. This sometimes results in various errors but I can take care of those. The issue I'm having...
GerberVINR-178.zip
SchematicVINR-178.pdf
Bottom layer
Top Layer
IC on the PCB is marked as follows: nrf51822 QFAAHO 1627WM.
I am able to program the custom...
Hello,
I want to create BLE connection between two different modules - nrf51822 and TI CC2564 (possibly Laird BT800). Is there any chance on using Gazell protocol on other...
Hi,
if I got it right, the Radio Timeslot API is not supported by the S140 softdevice. Is this right? Why is this and are there any plans to support the API in later versions...
HI, every one, I joined the watchdog program in application,i use sdk11.0, and i found the problem that when i download the program , the MDK compiler point out "error: flash...
Hi,
I am doing development on Android platform. I am using Marshmallow device to develop my BLE application. Many times I am getting status code 129 in onServicesDiscovered...
Hi, i'm working on a custom board with microswitch (Crouzet V4) in order to get the position of a moving part inside a machine. This switch is in pullup mode with a 100k resistor...
Hello,
I am using nrf51 and sdk12.2. I want to print data to terminal using printf function. So I added app_uart_fifo.c also I included paths. I did not get any errors from...
I'm using NRF51422, s130, SDK v12.
And I'm working on a project that can connect concurrent peripheral and Central.
In this continuious connect and disconnect sequences...
Hello,
I am using the bootloader_secure-Example on a custom-board and I want to configure a LED as status-indication.
Since I am on a custom-board I disabled the functions...
Hello!
I have to sample audio signal from a microphone (MAX 9814 adafruit) with the nrf52 board. I use the saadc and then I perform a FFT of the data using the sdk 13 examples...
Hello,
in my test I executed sd_mutex_acquire twice in sequence without releasing it. However, I did not get a "NRF_ERROR_SOC_MUTEX_ALREADY_TAKEN" on the second time. What...
