Hi, my friend,
I've been with nrf905. I use a 16-bit CRC check.
But I encountered problems in use:
1.Nrf905 16-bit CRC check format is CRC-16(IBM):X16+X15+X2+1 or other...
I have two custom PCBs, each of which has a microcontroller and an nrf24L01+. Everything related to the transceiver in the designs are complete duplicates (with the exception...
Hello,
I've built a small BLE-device based on the nrf8001.
With my Iphone I can discover this device and I am able to connect to it and listen to notifications of the...
Our pcb is used for gps location data. We have a nrf24L01 nordic chip as the micro process or between the gps module and wireless module (2G). Our engineer needs to capture...
Hey folks,
I'm trying to modify the SPI Master loop back example into a 4 line SPI Master_Slave program. Whenever I change the Tx_Buffer_lenght from 10 to lsome other numbers...
Hi.
I am using S130 softdevice version.
Basically, I am using NUS Service and make a my own NUS central service as NUS_C.
It is correctly work at normal state.
When...
Hi All,
Please Reviwe for a attached circuit file(Chip ANT of nRF51822.pdf).
I also attach a datasheet of chip antenna applied for that circuit(SDBTPTR3015 Data Sheet...
I'm seeing an odd behavior where the ability for our application to communicate to peripherals via twim is being affected by the initialization values for app timers.
Timers...
HI
I'd like to clarify my understanding of how the three work-
Does the SD card library use SPI or SPIM?
Does SPIM automatically use EasyDMA, or is it configured...
The API for sd_ble_gatts_hvx says that NRF_ERROR_INVALID_STATE is returned when no indications are enabled.
However, when I call sd_ble_gatts_hvx in this scenario I receive...
Hi everyone,
I am having problems reading the battery level using the SAADC. The main problem is that the reading is not consistent from when the device is booting to...
I have two bugs to report in nRF5_SDK_16.0.0_98a08e2\components\ble\nrf_ble_scan\nrf_ble_scan.c
The following functions in nrf_ble_scan.c follow a pattern nrf_ble_scan_addr_filter_add...
Does LESC is supported in FreeRTOS?
I init BLE modules in FreeRTOS tasks. After LESC is enabled, system returns error in nrf_crypto_rng_init(). Looks like nrf_stack_info_overflowed...
I'm trying to test out some of the BLE examples on the nRF 51 DK and I'm getting some strange results on the nRF Connect app. When I run the heart rate example, everything...
The modem firmware release notes say
> DTLS supports PSK authentication only
and indeed I can only get PSK to work.
I understand you can't give a timeline, but can you...
Hi All,
We are develop a BLE device which using Proximity profile. And we are modifying the nRF-Toolbox android apk to implement our application. We would like to change...
Hello,
I'm working on a project where I would like to use two nRF52810, one as broadcaster and one as observer. The idea is that the broadcaster sends an advertisement in...
Hello,
I have understanding issues with model inheritance and subscription list (and publish address) sharing.
The Mesh Profile Spec 1.0.1 (chapter 4.2.3) states:
"Within...
Hi,
the mesh profile spec 4.2.1, for the composition data page 0 states: "The size of the state shall not exceed the maximum useful access payload size". The maximum payload...
In SDK5, I found 2 examples : a server GATT in Central & a client GATT in Peripheral...
But in my case my device (nrf52840 board) needs to be :
a peripheral : slave...
Is it possible to send and receive data with the thingy91_at_client_2020-04-29_bc7ade8b?
I found, that this is not supported by AT commands, instead socket libraries for...
Hi everyone,
I have created a custom BLE service with a characteristic and I update the custom value after enabling notifications by calling the ble_cus_custom_value_update...
