Building app with nRF Connect SDK in Private Repo

In this blog, I would like to describe how to fork the Nordic nRF Connect SDK or Zephyr on your own github and then how to sync with the original stream. I have refer to some webpage post about this such as https://rick.cogley.info/post/update-your-forked-repository-directly-on-github/ Guideline from Zephyr Project https://docs.zephyrproject.org/latest/contribute/index.html#coding-style One general practice we encourage, is to … Continue reading Building app with nRF Connect SDK in Private Repo →

Radio Timeslot API for the Multiple Protocols

This blog is to describe more details how to use the Radio Timeslot API usage. The Radio Timeslot API was introduced since Nordic Softdevice S110v6.0 or later. It can be used to implement the concurrent multiprotocol with BLE together. All the timeslot API are based on the framework of Nordic Bluetooth Softdevice stack. For example, … Continue reading Radio Timeslot API for the Multiple Protocols →

How to configure the number of packets per every BLE connection interval

This blog is to show the method how to configure the number of packets per each connection interval. Basically, it is very similar to the blog (https://jimmywongiot.com/2019/12/15/how-to-set-the-bandwidth-on-ble-link-connection/). I would give more details how to achieve for example 3 packet per connection interval. 3 packets per each connection interval Suppose on the Nordic nRF5 SDK, it … Continue reading How to configure the number of packets per every BLE connection interval →

Step by Step to Compile Nordic NRF5 HIDs Keyboard / Mouse Example on nRF Connect SDK

This blog is to describe how to compile and run the nRF5 HIDs Keyboard example from nRF Connect SDK. nRF Connect SDK The nRF Connect SDK is where you begin building low power wireless applications with Nordic Semiconductor nRF52, nRF53, and nRF91 Series devices. The nRF Connect SDK is moved to https://github.com/nrfconnect instead of https://github.com/nordicplayground/nrfconnect. … Continue reading Step by Step to Compile Nordic NRF5 HIDs Keyboard / Mouse Example on nRF Connect SDK →

How to Compile the Ble_Connectivity hex and Run with nRF Connect Desktop

Nordic has supported the nRF Connect Desktop tool to run as the BLE Peripheral role or BLE Central Role. This blog is to provide the demo how to compile the HEX to run on the nRF52840 DK or nRF52840 dongle. nRF Connect for Desktop Cross-platform development software for Bluetooth Low Energy and cIoT nRF Connect … Continue reading How to Compile the Ble_Connectivity hex and Run with nRF Connect Desktop →

Service Change on BLE GATT Table

This blog is to describe about the Service Change handling on the BLE GATT. For example, there is a GATT Server at the BLE Peripheral Side. By using the service change indicator approach, it can force the host side to re-do the service discovery. Flow Diagram on the GATT Server with service discovery Service Change … Continue reading Service Change on BLE GATT Table →

How to work with BLE Codec 1Mbps , 2Mbps and Codec PHY on nRF52 Series

This blog is to introduce the Bluetooth Low Energy with difference codec configuration on Nordic nRF52 SDK. Bluetooth 5.0 had introduced the long range (Codec Phy 125kbps, 500kbps) and high speed 2 Mbps (uncoded PHY). Here are the topics in this blog: Basic introduction on the difference Coded/Uncoded Phy on the Bluetooth 5.0 specificationHow to … Continue reading How to work with BLE Codec 1Mbps , 2Mbps and Codec PHY on nRF52 Series →

How to Accept / Reject the BLE Bonding Request from Central

This blog is to give an idea how to control the BLE peripheral either accept or reject the bonding request from the central role. Nordic Softdevice Message Sequence Nordic SoftDevice Peripheral Security Request https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s132.api.v7.0.1/group___b_l_e___g_a_p___p_e_r_i_p_h___s_e_c___r_e_q___m_s_c.html Pairing failure: Pairing aborted by the application When the application detects that the pairing should not be performed, for example an … Continue reading How to Accept / Reject the BLE Bonding Request from Central →

Swift Pair on the Windows 10

This blog is to describe the Swift Pair on the Windows 10 particular it was introduced version 1803. I would like to collect all the information about this feature and how to enable on the Nordic SDK to support this. Most of the materials are referred to Microsoft documentation as below. https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/bluetooth-swift-pair Swift Pair Introduced … Continue reading Swift Pair on the Windows 10 →

How to communicate with Android through USB interface on nRF52820 / nRF52833 / nRF52840

This blog is to describe how to use the nRF52 Series USB interface to communicate with Android host. In the nRF52 Series, nRF52840, nRF52833 and nRF52820 have supported the full speed USB 2.0. Instead of using the Bluetooth Low Energy, they can communicate the date between android host through USB interface. In this blog, I … Continue reading How to communicate with Android through USB interface on nRF52820 / nRF52833 / nRF52840 →

PDM Microphone on nRF5 Series

This blog is to describe how to add the PDM Microphone on Nordic nRF52 Series. The PDM is started to support on the nRF52832. The pulse density modulation (PDM) module enables input of pulse density modulated signals from external audio frontends, for example, digital microphones. The PDM module generates the PDM clock and supports single-channel … Continue reading PDM Microphone on nRF5 Series →

USB Audio Class

This blog is to give some background knowledge on the USB Audio Class. I will try to collect some information from internet about the USB Audio Class 1 and USB Audio Class 2 and then give the description on this blog. Introduction Universal Serial Bus (USB) is a serial bus standard to interface devices. USB … Continue reading USB Audio Class →

Enhanced ShockBurst ESB Protocol on nRF52 Series

This blog is to describe more about the proprietary radio protocol on the nRF52 series. On the Nordic nRF5 SDK, it has two difference protocols. Enhanced ShockBurst (ESB)Gazell In this blog, I would mainly focus on the ESB because it provides full source code instead of library. Also, it can do much more flexible to … Continue reading Enhanced ShockBurst ESB Protocol on nRF52 Series →