DEVZONE BLOG FEED
01.02.2017
WIZnet's BLE to TCP Gateway
IntroduceWIZnet would like to introduce a BLE to TCP solution which enables bluetooth devices to access cloud services such as Google, IBM, and Amazon without a smartphone. WIZnet created a low power IoT Gateway using W5500, WizFi310, and nRF52832.With this gateway, the various data of BLE node can be received as BLE and converted into a desired internet protocol such as TCP, UDP, and MQTT; and then, transmit data to various cloud servers. Data transmitted from the node can be checked by a smartpho...
30.01.2017
Simple Application-level Authentication
IntroductionThere is a use case that I've seen several times recently that I find interesting due to the fact that its security requirements aren't directly addressed by the Bluetooth Low Energy (BLE) standard. It goes something like this:I have a BLE device that multipleusers can interact with. Although mostof the BLE characteristics should beopen, one or more 'admin'characteristics should only bemodifiable if the user has permissionsto change them.I will present a simple solution using the nRF52832 with...
22.12.2016
nRF5x support within the Zephyr Project RTOS
The Zephyr Project RTOSThe Zephyr Project RTOS is a recent effort by the Linux Foundation to provide the embedded world with a free, secure and fully-featured Real Time Operating System.It is designed from the ground up to be a modern, scalable, secure and responsive RTOS with a clear focus on IoT protocols and foundations.This open source RTOS is Apache 2.0 licensed and has a fully open development modelRecently Nordic contributed ports to all of our Cortex-M based ICs (nRF51, nRF52832...
DEVZONE FORUM
I'm trying to implement the HID service on a custom nrf52832 board, unfortunately I'm running into problems.Here's what happens: Advertising, connecting to the board, service discovery, GPIOs (buttons & LEDs), reading the battery level, etc. all work great. I use nRF Connect to test this. However when trying to read HID characteristics (except for the protocol mode), the operation never finishes (the spinner keeps spinning). The log does not show any errors or other entries, except for the battery ser...
01.02.2017
Bluetooth Core Spec v4.1
Could someone paste the link to bluetooth specification v4.1? I can't find it on web. Probably it is avaliable only for SIG members, but I'm only a student and registration to SIG is quite bothersome for me (they ask for company documents). I need this for my engineering thesis, so I will be grateful for help....
01.02.2017
Fatal error Peripheral Side "WRITE"
Hi,I am using the experimetal app_ble_blinky on both sides peripheral and central.I edited the peripheral characteristic sizes to 4 and I am able to send notification to the central with no issue.But when I made changes(central side) to send 2 bytes or more to the peripheral, the peripheral give me a fatal error at the moment to send notifications and being not able to recive writte cmd from the central. If I remove the changes from the central all works(write just a byte to the peripheral) and able to no...