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,
I'm developing a BLE DFU controller with bluepy on a RPi3. The peripheral that is being updated is a nRF51 device on SDK 12.3.0, with the secure bootloader and experimental...
Hi,
In our project we want to use nRF52832 chip using HCI Command interface. We are trying to use Zephyr RTOS project for geting HCI interface through UART. We are using...
Hi,
In y project, I want to implement CTS. Until now it's been working, but I don't know why, I now have this problem: Current Time Service not found on server, which means...
I am using a Sparkfun Pro nRF52840. I wish to communicate with it serially. I found the UUIDS it exposed : UART Service = 6E400001-B5A3-F393-E0A9-E50E24DCCA9E TX Characteristic...
Hi,
I am using nrf51 dk with sdk 12.3 and softdevice S130 bluetooth module using Keil IDE.In our project we need to send sensor data from the nrf51 bluetooth module to another...
Hello,
I want to add central-role features to my peripheral firmware. I've already managed to get this work. The strange thing, I only get one BLE_GAP_EVT_ADV_REPORT. So...
Hello.
I just import Thingy firmware: thingy52_ses.zip and try to build this project and check possibility of programming my Thingy, but SEGGER returns something like that...
When I use nRF52840 dongle as a promiscuous packet sniffer , I found that sniffer works fine no matter how much I set the baud rate. This happens only on the dongle, so I...
Hello,
I have a PWM code that works as a peripheral application on my nRF52 DK, but now I want to set it to be controlled via android phone app. I have nrf connect on my...
Hello,
I'm a newbie to BLE and the Keil uvision IDE. I'm using a nrf51422_xxac_s110 chip, The version of the IDE I'm using is 5.28.0.0. When I add the fds.c file, into the...
Security of data passing in BLE communication Hello I am developing based on "multirole lesc" of BLE sample project. What is worrisome about the project is the "security_req_t...
I don't program the BLE part myself but I must know from a design-level.
As I understand, a BLE scanning unit must connect within less then 60us after advertisement.
If...
Hello.
In according to this tutoraial: https://www.novelbits.io/bluetooth-mesh-tutorial-part-5/
I wonder if it is possible to replace ,one of these two nrf52840 DKs...
Hi,
Has anyone had success going from the Arduino bootloader back to J - link bootloader?
CONTEXT: I purchased 5 nrf52832 modules, and followed the posted guide to burn...
Hi, I would like to power my development board from the provided coin cell. I removed the plastic between battery and negative contact point. I put VDD position on power source...
