Zephyr ble advertising 3 seems to be the correct one. Once a device is bonded, on subsequent boots, connection requests will only be accepted if the central device is on the accept list. Some significant changes need to be made to prj. HCI UART Browse source code on GitHub Overview Expose Bluetooth controller support over UART to another device/CPU using the H:4 HCI transport protocol (requires HW flow control from the UART). I have CONFIG_BT_SETTINGS and CONFIG_BT_DEVICE_NAME Nov 30, 2021 · I am currently in development for a BLE product, where I am in need to change the preconfigured advertisement interval. Sep 9, 2022 · Describe the bug After a disconnect with the Bluetooth mcumgr backend, the device does not restart advertising and cannot be connected to again. 1 & 2. 1) Use of bt_conn_le_create () verses bt_conn_le_create_auto () ? On my initial scan of peripherals, I Feb 15, 2025 · I'm using an nRF7002DK, SDK v2. Now I'd like to change its advertising name but I can't seem to get that to work. Unlike legacy advertising, which is sent on the primary channels and may be missed if the scanner isn't listening at the right time, periodic advertising uses a synchronizable 3 days ago · Beacon Browse source code on GitHub Overview A simple application demonstrating the GAP Broadcaster role functionality by advertising an Eddystone URL (the Zephyr website). Jul 22, 2024 · Setting Bluetooth Device Name in Zephyr - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi. I've enabled BT_DEVICE_NAME_DYNAMIC and BT_SETTINGS. As per the code logic the terminal logs for "Advertising Jan 6, 2021 · Introduction The question of how to update advertising data dynamically using the BLE Advertising library has been raised many times by our forum-goers, especially after the release of nRF5 SDK v15. g. For my project I need to use extended advertising in LE Coded PHY mode. I cannot find an API to use to change the advertising timeout; is there one? Aug 4, 2022 · II have a question on how to automatically activate the change from “minimum BLE advertising interval” to “maximum BLE advertising interval” after (for instance) 30 seconds. 5 days ago · Direction Finding Periodic Advertising Beacon Browse source code on GitHub Overview A simple application demonstrating the Bluetooth LE Direction Finding CTE Broadcaster functionality by sending Constant Tone Extension with periodic advertising PDUs. Any ideas where it might be? My SDK is version 2. bin 13. So there is some sort of stale file that is not refreshed by a pristine build. Connection objects are reference counted, and the application is expected to use the bt 3 days ago · Stack Architecture Overview This page describes the software architecture of Zephyr’s Bluetooth protocol stack. I've encountered this both on a custom app and when modifying the zephyr BLE beacon sample. Oct 21, 2020 · On the other hand, there is an RTOS at the core of Zephyr. The initial advertiser TX power for the first 5s of the application is the Kconfig set default TX power. Implemented custom ble service and added BLE DIS and BAS services from source. 4. Periodic Advertising Connection Procedure (Responder) Respond to periodic advertising and establish a connection. If the used Bluetooth Low Energy Controller supports Extended Scanning Jun 14, 2024 · I am facing an issue in my application where my device is working as a BLE peripheral advertising for connection. I am using the I am working on the ESP32 BLE. For specific Bluetooth functionality see also the following shell documentation Aug 28, 2023 · Describe the bug We are using the STM32WB55 platform and extended advertising API for starting legacy advertising. advertising and scann response data. But actually what it happen means, the BLE advertise is sto 5 days ago · Observer Browse source code on GitHub Overview A simple application demonstrating Bluetooth Low Energy Observer role functionality. The Zephyr BLE stack is one of the modules of the RTOS. 0) HCI_UART running on nRF52 DK why BD address is always 00:00:00:00:00:00 after power cycle We would like to show you a description here but the site won’t allow us. Jan 31, 2025 · Hello All, I am a young fellowman started to work with BLE communication establishment in esp32_devikitc_wroom with zephyr. 13. There are four main advertisement types to cover in legacy advertisements, as well as […] Related code samples HCI Power Control Dynamically control the Tx power of a Bluetooth LE Controller using HCI vendor-specific commands. When creating a new build configuration, should I select a particular option (system default vs proj. com/ja 4 days ago · HCI Power Control Browse source code on GitHub Overview This sample application demonstrates the dynamic Tx power control over the LL of the Bluetooth LE controller via Zephyr HCI VS commands. com/Have a more detailed questions?: https://community. Additionally this sample provides two BLE characteristics. Multiple devices Apr 7, 2022 · Learn the basics of Bluetooth Low Energy (BLE) with Zephyr. Using Zephyr API I do not find the way to do the same thing. Three of the channels are the Primary Advertising Jul 17, 2023 · I would like to add NUS, BAS, and SMP services to advertisement. In nrf Bluetooth Low Energy Bluetooth Low Energy Fundamentals Course description The Bluetooth Low Energy Fundamentals course is an online, self-paced course that focuses on teaching the basics of Bluetooth LE using Nordic Semiconductor devices (nRF54, nRF53, and nRF52 Series). The Provisioning process All Bluetooth Mesh nodes must be provisioned before they can participate in a Bluetooth Mesh network. When I started learning how to develop Bluetooth Low Energy (BLE) applications with Zephyr RTOS, I was 3 days ago · Peripheral Accept List Browse source code on GitHub Overview This application demonstrates the Bluetooth LE advertising accept filter list feature. Then, the TX power BLE Advertising raw data via scan response - bt_le_adv_start Jul 21, 2023 · Hello, I like to read the battery voltage via BLE and display it in the app. The advertising data is a counter that increases for each subevent. so I am not able to send battery percentage to client ( Mobile). The advertising data section looks like this: Jul 2, 2025 · Complete guide for using Bluetooth Low Energy (BLE) with XIAO nRF54L15 Sense, including advertising, connections, GATT services, and power optimization. This sample will echo the data received in subevent indications back to the advertiser. Sep 13, 2023 · Periodic Advertising with Responses (PAWR) is a new feature in Bluetooth 5. Outlining the steps required to initialize an extended advertising application. Some of the main benefits of an RTOS include abstracting away HW and scheduling complexity, allowing critical processes to finish in a deterministic fashion. I have two different HW boards which are behaiving differently with the same zephyr sample. I ran into the problem that for every adv packet bt_data_parse() logs 'Malformed data' and returns. The application also needs a functioning serial console, since that’s used for the Out-of-Band provisioning Jun 4, 2019 · #ble #nrf52840 Setting LE Coded PHY#ble #nrf52840 This repository contains an application for creating a BLE beacon with multiple advertisement sets using the nRF52833 development board from Nordic Semiconductor and Zephyr RTOS. 1 day ago · Periodic Advertising with Responses (PAwR) Synchronization Browse source code on GitHub Overview A simple application demonstrating the Bluetooth LE Periodic Advertising with Responses Synchronization functionality. At that time, we were able to execute high duty cycle directed advertising with the following code. Feb 7, 1999 · Application demonstrating the BLE Direct Advertising capability. Dec 5, 2023 · I have a project where a BLE device connects to another (very innovative, right?) As part of this it obviously scans. Jan 30, 2023 · The code is based on the Nordic UART Service example which uses Zephyr, but has been substantially modified to suit the application. For more information about designing Bluetooth LE devices for Apple products refer to “Accessory Design Guidelines for Apple Devices”. However, I am generating my device's name during runtime using the onboard chip ID. adv_report in which both advertised data and scan response data are present. 3 days ago · Use basic Bluetooth Mesh functionality. Example Zephyr BLE application that deploys a BLE DIS and NUS service for testing - LimeSlice/zephyr-ble-app Aug 18, 2025 · Hi, I am developing a small app for the nRF52840 using the SDK V3. 0. To this end there is the API "bt_set_name" that seems like it should do it, but I have not yet found anyway to get it to actually change the name. have seen a a considerable Apr 14, 2020 · Implementing Eddystone on nRF52 using Zephyr RTOS For the practical part of this tutorial, we’ll be using: An nRF52840 development kit (you could use any Zephyr-supported board, but you’ll have to change the board type in the build command arguments). Thread safety Hardware setup Embedded Host on Linux with an external Controller Simulated nRF5x with BabbleSim 5 days ago · A simple application demonstrating the BLE operations (advertising) with Zephyr power management enabled (CONFIG_PM). previously I'm working in nrf5 sdk in that code it is working properly. Oct 9, 2022 · A simple application demonstrating combined BLE Broadcaster & Observer role functionality. (bt_data_parse () relevant part) 3 days ago · Bluetooth This section contains information regarding the Bluetooth stack of the Zephyr OS. The issue I'm having is that the mac address which shows up in nRF connect on the phone keeps changing with each change in the packet sent. 3 days ago · Please note that direct advertising towards iOS based devices is not allowed. In this video, we'll be implementing the BLE Battery Service (BAS) using Zephyr. Feb 15, 2025 · ERROR WHEN CREATE BLE ADVERTISING NRF54L15 CUSTOM BOARD Nguyen Kha Duong 9 months ago Hi everyone, I tried to create BLE ad for customboard nrf54l15, but it doesn't seem to work. The internals of this struct are not exposed to the application, but a limited amount of information (such as the remote address) can be acquired using the bt_conn_get_info() API. Is there any sample how I can do this? The BLE physical layer (PHY) is concerned with the radio hardware used for communication and for modulating/de-modulating the data being transmitted. conf. See also Bluetooth APIs Mar 5, 2022 · I am trying to inspect ble advertising packets on a bbc_microbit. I've encountered this on both NCS 2. The application will periodically scan for devices nearby. This sample will send its address in response to the advertiser when receiving subevent data. I am using custom board with nrf52820, nRF Connect SDK 2. Through hands-on learning, participants will learn how to create a Bluetooth LE prototype and establish a wireless, […] Feb 15, 2017 · In the simplest case of "advertising without connection" (bt_le_adv_start (BT_LE_ADV_NCONN, <>, <>, <>);), I suggest a workaround for developers - use "bt_le_adv_stop ()" to stop advertisement, wherever required as per application needs. The software is implemented in Zephyr, using the soft device S140. This sample advertises two non-connectable non-scannable advertising sets with two different SID. I created a custom zephyr project. In my project I want to use BLE in continuous advertising mode. Aug 2, 2023 · Hello, We noted a strange consumption pattern regarding the BLE usage w/ zephyr 3. 0 and the Visual studio Code on a PC windows 11. I am using android and iOS phone Nov 14, 2024 · Hi DevZone! I am developing a Bluetooth beacon that needs to use extended advertising due to the need of periodic advertising. PB-ADV and PB-GATT). Has anyone successfully done this with Zephyr? Thank We would like to show you a description here but the site won’t allow us. Which subevent to listen to and in which response slot to respond is application specific Hello, I want to change the ble device name during runtime. How to set BLE Advertising Tx power? like for example, I want to set 0dBm. Periodic Advertising Connection Procedure (Initiator) Initiate a connection to a device using the Periodic Advertising Connection Procedure. But this could be wrong. Mar 4, 2025 · Hi, I have problem with re-connecting a paired BLE connection on zephyr. It has several standard mesh models, and supports provisioning over both the Advertising and the GATT Provisioning Bearers (i. Jul 22, 2024 · I have seen a few posts including: Change advertised name (Bluetooth) - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi. e. Zephyr (v1. We will take a look at how to set the advertising type in the exercise section of this lesson. Looking at the documentation, I see nothing else I can do? I use an Adafruit Feather with a Nordic nRF52840 chip. Advertising is how a BLE device makes itself discoverable. Requirements A board with Bluetooth LE support Default UART settings By default the controller builds use the following settings: Baudrate: 1Mbit/s 8 bits, no parity, 1 stop bit Hardware Flow Control Jan 29, 2019 · Hello, now I am using BLE with 3 services and some charasterisitcs in it. In the case of BLE, this is segmented into 40 RF channels, each of which is separated by a 2 MHz (center-to-center) gap. calling ble_advertising_start() while advertising, or calling sd_ble_gap_adv_stop() while not, causes an SD assert which by default soft-resets the device (related question here). I have also build and run the peripheral_gatt_write sample and have the same issue there with the exception of Failed to read remote version. 4 days ago · To use the bt_ead_encrypt() and bt_ead_decrypt() functions, you must enable the Kconfig symbol CONFIG_BT_EAD. First of all, I found a periodic_adv sample under zephyr/samples/bluetooth which seems to be a good example of BLE extended advertising in action. sent callback in the "bt_le_ext_adv_cb" is called the first time, which makes me believe the advertising has stopped. 0, and I've set it up as a BLE mesh node following the Zephyr bluetooth mesh sample. How the initiator decides the address of the synced device to connect to is application specific. I'm limited to 191 Bytes but the Bluetooth specification allow 255 Aug 12, 2021 · I have seen this question answered for the old Nordic SDK but have not been able to find a solution in Zephyr & NCS. 30 seconds. Additionally, scan response data Jul 13, 2023 · Hello, guys! I have a few questions about BLE extended advertising on devices running Zephyr RTOS. bt_le_adv_stop (); and bt_le_adv_start Aug 26, 2022 · However, from another issue 46400 and zephyr documentation stm32wb5x_BLE_HCILayer_extended_fw. You can use this information to understand the principles behind the operation of the layers and how they were implemented. All is working well except the Bluetooth Advertising stops after approx. [Zephyr-users] increasing nRF52 Bluetooth range1 - 6 of 6 1 Shell The Bluetooth Shell is an application based on the Shell module. 6. Is this low power advertising supported? If so, could you please tell me what I am missing here? I’m looking through the documentation to find a way (and playing with code) to try and work out how to have the device name advertised in the advert packets (on BLE) rather than scan response packets so that devices using passive scanning can determine the device name but not having any luck. conf to enable Bluetooth. In this article I will show you how to create a BLE central. Once the Dec 20, 2024 · I am currently working on a BLE peripheral application using the Zephyr stack and have encountered an issue where my device stops advertising after approximately 30 seconds. While this sample uses extended advertising, it is not mandatory when using the encrypted advertising. Jul 30, 2021 · By looking at the serial debug output, I suspect these whitelist calls are too early because the two line "Clear whitelist" and "Start advertising" appeared ahead of board initialization. The feature can be used with legacy advertising as well. I have questions related to connection management. 4 GHz spectrum). My requirement is to create a BLE central device which can connect with my peripheral and Aug 2, 2023 · Hello, We noted a strange consumption pattern regarding the BLE usage w/ zephyr 3. 1. To Reproduce Jan 16, 2024 · Hello, For a proprietary application that doesn't require full Bluetooth compatibility, I am trying to setup an advertisement on the primary channels, using coded PHY: Radio modes Exercise 1 Lesson 1 quiz Lesson 2 – Bluetooth LE Advertising 7 Topics | 1 Quiz Advertising process Advertising types Apr 6, 2023 · This seems to work now. I have also tried with using extended advertising, improvement. If any found, prints the address of the device, the RSSI value, the Advertising type, and the Advertising data length to the console. My problem is, when I want to send 255 bytes of adv_data, the BLE stack in zephyr doesn't allow me to do it. . The device stops advertising after connecting to it for the 2nd time and doesn't recover advertising even after disconnection, where advertisement is restarted again. The thing is, according to many online sources, BLE supports ATT sizes up to 512 bytes, so is it a Zephyr limitation or something? Or there is a config I need to change? May 13, 2023 · I tried changing it through Kconfig which edits zephyr/config and manually by putting it in my proj. Zephyr RTOS. Throughout this architecture document we use BLE interchangeably for Bluetooth except when noted. Only after connecting with the device, i see the correct new device name that To receive directed advertising packets through the library, enable one of the following Kconfig options in Zephyr: CONFIG_BT_PRIVACY - Scan with changing addresses. 2. I use the advertising type MANUFACTURER_SPECIFIC_DATA to advertise. I'm using 2 advertising sets with legacy advertising on the current zephyr main branch. It offer a collection of commands made to easily interact with the Bluetooth stack. Note Zephyr supports mainly Bluetooth Low Energy (BLE), the low-power version of the Bluetooth specification. Additional information that is only relevant to Bluetooth applications can be found on this page. . I have installed the nRF Connect SDK following the instructions at… Feb 15, 2022 · Hello All, I am new to zephyr. Demo how to gracefully restart the functionality, after a disconnect. I see on step 5 they start the BLE advertising using the sd [] and ad [] arrays defined for compile time. Before starting any advertising we issue the ST-specifi Zephyr BLE - use public (fixed) address1 Connection Management The Zephyr Bluetooth stack uses an abstraction called bt_conn to represent connections to other devices. Heart-rate Monitor (Peripheral) Expose a Heart Rate (HR) GATT Service generating dummy heart-rate values. 5. 0, in which the ble_advertising_advdata_update fun Hi all, I'm having trouble getting the Zephyr BLE beacon example to advertise. Nov 17, 2025 · Periodic Advertising Connection Procedure (Initiator) Browse source code on GitHub Overview A simple application demonstrating the initiator side of the Bluetooth LE Periodic Advertising Connection Procedure. The application implements a peripheral advertising with varying Tx power. But the following error messages shown on RTT Viewer. I use "bt_le_adv_start" to begin Bluetooth advertising. All goo May 14, 2020 · The advertising itself appears to work fine. 1 My original template was the ble_peripheral. May 3, 2024 · Hi support team If I want to implement update advertising data dynamically function, which method is recommended? 1. The application also needs a functioning serial console, since that’s used for the Out-of-Band provisioning 3 days ago · Use basic Bluetooth Mesh functionality. The whole thing actually functions pretty good. Requirements Two boards with Bluetooth Low Energy support Two boards with a push button connected via a GPIO pin, see the Periodic Advertising Use Bluetooth LE Periodic Advertising functionality. To change the device name during runtime i'm using bt_set_name (). Requirements Nordic nRF SoC based board with Direction Finding support (example boards: nRF52833 DK, nRF5340 DK) Antenna matrix for AoD (optional May 31, 2022 · Learn the basics of Bluetooth Low Energy (BLE) with Zephyr. Application Development Bluetooth applications are developed using the common infrastructure and approach that is described in the Application Development section of the documentation. com) but I still haven't been able to adapt one of the examples to show the name 5 days ago · A simple application demonstrating the Bluetooth Low Energy Broadcaster that uses multiple advertising sets functionality. 99 patrickmoffitt / zephyr_ble_sensor Public Notifications You must be signed in to change notification settings Fork 0 Star 4 May 25, 2016 · In my application, a host co-processor controls when to start/stop advertising, connect etc. However, when scanning for the device using the nrf connect toolbox app on my android device, i still see ''Zephyr'' as the device name. White lists and bonding are bring used and I am forcing connection loss via use of faraday bags. What I observe is that nrf52820 is not Sep 7, 2024 · Zephyr RTOS is becoming increasingly important as an RTOS for developing IoT (Internet of Things) applications, not only smart sensors but also edge computing devices. This sample will connect to any synced device responding with its address. Smartphone with a BLE scanner app – we’ll be using nRF Connect for iOS. The Device always advertises with whatever CONFIG_BT_DEVICE_NAME is set to. 75 ms. It's running fine, and I'm able to provision it using the nRF Mesh app on my phone, I also see it when scanning with the nRF Connect app. After it starts advertising a connection with std. BLE operates in the somewhat congested ISM band (2. This article originally ran on Koen Vervloesem’s blog, where you can find more content like this. Thanks in advance Neeraj Dhekale Aug 4, 2025 · Hello, I'm currently exploring BLE using zephyr and faced some issues. Advertising allows devices to broadcast their presence and services, while scanning enables devices to discover other BLE devices in range. This sample will scan for the corresponding sync sample and send the required synchronization info to it. How should I mitigate this? Do I have to keep track of the Apr 5, 2025 · GAP Periodic Advertising Parameters Periodic advertising is a Bluetooth Low Energy feature introduced in Bluetooth 5 that allows a device to broadcast data at fixed, predictable intervals without requiring a connection. Issue caused by commit c72eb5f and found by @de-nord Sep 8, 2024 · Learn how to turn an nRF52 development kit into a Bluetooth Low Energy beacon that broadcasts either static or dynamic custom data. I upload my code in the attached file: when I buil project, I have an error: "undefined reference to `__device_dts_ord_92'" I don't know to configure that. For this purpose, we'll utilize an nRF52840-dk and program it as a periphera Jan 4, 2021 · Hello, There was a feature in Bluetooth legacy API bt_le_adv_* that when advertising connectable advertisements and central connects to peripheral, the advertisements get paused. Zephyr also has limited support for portions of the BR/EDR Host. How can I fix the address so it does nRF9160 Feather & More: https://www. Jan 19, 2023 · Hi, I have a bluetooth central app which connects to several BLE peripherals and am now working on fixing various connection reliability issues. Apr 29, 2025 · This document describes the Bluetooth Low Energy (BLE) advertising and scanning functionality in the zephyr_polling Bluetooth stack. I need to advertise some service data before connection, but when I enable it, the BLE not works, either advertising like a Dec 2, 2020 · I am acostumized to work with Nordic nRF52 chips and nRF SDK where I could do it easily with the event BLE_GAP_EVT_ADV_REPORT and the p_gap_evt->params. Oct 2, 2024 · Hi, I am using a NCS v2. 0, starting BLE peripheral advertisement via bt_le_adv_start() fails with error code -EIO, if the BLE central is already scanning. 1. I've noticed that soft-device command are state-dependent, e. The connection gets taken. Jun 4, 2020 · Using Zephyr, I'm looking to configure the BLE name of my devices to use the serial number they are provisioned with. After startup, a first 2 seconds beacon is performed, 1 second break and beacon is started again. In the IoT ecosystem, the importance of BLE (Bluetooth Low Energy) is as a short-distance radio Jan 12, 2021 · Am I supposed to stop advertising or create a new extended advertising set each event? The . id like to restart advertising after disconnecting from a device. Feb 23, 2022 · It then starts bluetooth advertising. With PAwR, it's possible now to build an ultra-large Aug 22, 2024 · I'm trying to create a demo beacon with an advertising interval of 5s and I only ever see a single advertisement from the device, following boot up. 0, Zephyr. The Provisioning module in the Zephyr Bluetooth Mesh stack supports both the Advertising and GATT Provisioning bearers for the provisionee role, as well as the Advertising Provisioning bearer for the provisioner role. 3 days ago · Periodic Advertising with Responses (PAwR) Advertiser Browse source code on GitHub Overview A simple application demonstrating the Bluetooth LE Periodic Advertising with Responses Advertiser functionality. zephyr:code-sample:: ble_scan_adv :name: Scan & Advertise :relevant-api: bt_gap bluetooth Combine Bluetooth LE Broadcaster & Observer roles to advertise and scan for devices simultaneously. The main loop sleeps for 100ms and then sends an update to the central device if there is an active BLE connection and if there has been a change to the step-count value. 0 (we got the same values w/ Bluetooth: Periodic Advertising ¶ Overview ¶ A simple application demonstrating the BLE Periodic Advertising functionality. Once bonded, on every subsequent boot direct advertising to the bonded central will be performed. The BLE stack is the version 1. conf)? Edit: it seems like my signal strength varies a lot but I do see a difference between -8 and +8 dBm Jan 17, 2023 · Greetings, Previously we were developing with the nRF5 SDK. Mesh Browse source code on GitHub Overview This sample demonstrates Bluetooth Mesh functionality. In this case the device should send small packet on Primary Channels (37,38,39) and then the actual packet somewhere in the future on the Secondary Channel. In this article I will show you how to create a BLE peripheral. I built the "peripheral_gatt_write" in sample directory. comBuy me a coffee ☕: https://ko-fi. Connection objects are reference counted, and the application is expected to use the bt Oct 9, 2022 · A simple application demonstrating combined BLE Broadcaster & Observer role functionality. Everything you need to know about Bluetooth LE advertising Nordic Tech Webinar Sep 29, 2022 · Written by Koen Vervloesem, technology writer and author of the book Develop your own Bluetooth Low Energy Applications for Raspberry Pi, ESP32 and nRF52 with Python, Arduino and Zephyr. Neither seem to have any impact. bt_le_adv_stop (); and bt_le_adv_start. 00> *** Booting Zephyr OS build v3. If no device is bonded to the peripheral, casual advertising will be performed. It periodically broadcasts small packets containing its identity and capabilities. The receivers can transmit response payloads back to the broadcaster. There are many different ways that a peripheral can advertise. com) but I still haven't been able to adapt one of the examples to show the name dynamically. The application will periodically send out advertising packets with a manufacturer data element. We would like to show you a description here but the site won’t allow us. BLE reason codes1 - 4 of 4 1 Shell The Bluetooth Shell is an application based on the Shell module. 7. Zephyr includes a complete Bluetooth Low Energy stack from application to radio hardware, as well as portions of a Classical Bluetooth (BR/EDR) Host layer. *'s release though. What I like to do is to be able with the app to change the BLE Advertising Interval by just pressing the buttons. On such change is this: CONFIG_BT_DEVICE_NAME=”Microbit V2 BLE” Oct 22, 2024 · Hello, I need your help about the BLE stack in zephyr with the NRF5340 chip. So far I've been able to send counters, and other data over BLE as advertisements. May 18, 2025 · Describe the bug The device boots and enables bt (peripheral role). I am using Arduino IDE for my programming. Requirements BlueZ running on the host, or A board with Bluetooth LE support Building and Running See Bluetooth samples for details. 3 out of 2 services working properly but in the battery service notification is not enable automatically. 5 days ago · Use the Bluetooth LE extended advertising feature. It extends the periodic advertising protocol from Bluetooth 5. com) Setting Bluetooth Device Name in Zephyr - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi. AFAIK a 5s advertising interval is valid per the BLE spec. com) NCS bt_set_name () - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi. Number of advertising sets can be increased by updating the CONFIG_BT_EXT_ADV_MAX_ADV_SET value in the project configuration Aug 8, 2023 · I can't wrap my head around the concept of how services are discovered and whether every service has to be shown at advertising time or whether there is a possibility to discover the services AFTER the connection is done with the device - to my understanding this is what happens with the rest of attributes. The type of advertisement being used is set in the advertisement packet. I haven't yet tried it with 3. 1 day ago · Periodic Advertising Connection Procedure (Responder) Browse source code on GitHub Overview A simple application demonstrating the responder side of the Bluetooth LE Periodic Advertising Connection Procedure. Periodic advertising, where a device sends broadcast data with deterministic timing, can now carry bidirectional communication. We are using Zephyr 3. I tried different approaches Aug 3, 2023 · But with a sniffer I can see that the device is still advertising under the old device name. But now I have just got to know Jan 29, 2019 · Hello, now I am using BLE with 3 services and some charasterisitcs in it. BLE services not cleared during disconnection#ble Mar 8, 2010 · I'm trying to send data readings an advertising packets from the nrf21540-dk board, and use the phone as an observer to record the data. 16. @amitrajrd why do you call that a workaround? A workaround for what? The appropriate way to stop advertising is bt_le_adv_stop(). circuitdojo. Using this, the advertising interval would be less than 3. I'm following this post on how to develop a custom BLE service in NCS. The peripheral gets connected with the central. The sample consists of the advertiser initiating a connectable advertisement set, which prompts the scanner to connect after scanning for extended advertisements. I am not too familiar with the Zephyr RTOS and the sdk API but browsing on the Nordic Academy and over the SKD examples I found the bricks for the foundation on an Nov 29, 2023 · Hi NRF team, I am working on the NRF52840 dev board with Zephyr OS. Please Nov 24, 2023 · It seems that on Espressif esp32c3 with Zephyr v3. When central disco Nov 17, 2025 · Periodic Advertising Connection Procedure (Initiator) Browse source code on GitHub Overview A simple application demonstrating the initiator side of the Bluetooth LE Periodic Advertising Connection Procedure.