Hello,
I established a connection between my central and peripheral module. Now i want to write characteristic value on peripheral. I tried with sd_ble_gattc_write function...
I am using the NRF24l01 for my products and looking to buy in bulk(100-1000). Now I know where to buy the just the IC but antenna design is a hard point to break right now...
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,
We use Mesh SDK 3.2.0 and 15.3.0 SDK
We were developing a LPN example and we ended up having a bunch of models on the node which increased the composition data size...
I have a device with a Secure-DFU bootloader on it. I was wondering what it would take to OTA update it to the Mesh-DFU bootloader.
Some background around the use-case...
Hi,
I'm using the lighting example within the nRF5 SDK for Mesh. I'm using a static provisioning, one light client and one light server. Both the client and server implement...
When configuring a BLE mesh network, one have to set a netkey. Are there any requirements for generating this key or can this be any random sequence of numbers.
Hi Dears,
I am using the pc-ble-friver-py-0.1.0 for the nRF5840-Dongle development, I have an issue with the ble scan:
I used the function ble_gap_scan_start to aotu...
Hi there
I'm struggling with the usbd_cdc_acm example.
I want combine the ble_app_uart and the usbd_cdc_acm example to use my ble central role with nus and usb at the...
Hi everyone, I have been using for a while the Adafruit nRF52 Feather board, programming BLE related apps using the Arduino IDE using the Bluefruit library for BLE.
I wanted...
Hello everyone, I have a custom board based on the QIAA layout, when i try to flash the bluetooth beacon example from the zephyr samples directory, the board does not advertise...
I have implemented a project that incorporates the 802.15.4 radio driver for use with a in-house developed router stack.
The implementation appears to work fine between...
Hi,
I've been working on UDP comunication so I looked into an example posted in the devzone that uses UDP (fetch time over NTP). I'm able to build and flash this application...
Hello,
I want to change the channel mask of the advertising channels like this
m_advertising.adv_params.channel_mask[4] = 0xC0; // only Channel 37
and sniff it.
I...
Hello I am a new user in the BLE world.
I am using the nRF52 DK board and trying to program it via PlatformIO by visual studio code i.e coding with arduino programming C...
Hi,
I'm looking for some design guidance on how to properly secure the device, code, access tokens etc.
- Does secure boot protect the device from being re-flashed...
I am using BQ25120A with nrf52832, but when I power up the nrf52 with battery then it continuously reboots. What is the reason behind this and how should I overcome it? Initially...
