Arduino IDE with nRF52 DK Board

This blog is to describe the Arduino IDE with nRF52 Chipset. I would describe what is Arduino and how to configure the nRF52 to work with Arduino IDE. What is an Arduino? Arduino is an open-source electronics platform based on easy-to-use hardware and software. Arduino boards are able to read inputs - light on a sensor, a finger … Continue reading Arduino IDE with nRF52 DK Board

How to upgrade Specify FW from SPI flash on nRF52 Series

This blog is to show how to use the SPI bootloader to load the specify firmware from SPI flash for device firmware upgrade. Following up the blog (SPI bootloader), I would continuous to use the nRF52840 DK board and use its onboard qspi flash as SPI flash. For example, there are 3 difference application firmware … Continue reading How to upgrade Specify FW from SPI flash on nRF52 Series

AWTK GUI Demo (Smart Watch) on nRF52840

This blog is to show to the AWTK GUI demo on the Nordic nRF52840 DK board. Sample Slide Screen DemoSmart Watch This demo is done with AWTK ZLG (https://github.com/zlgopen/awtk). Simple GUI Demo https://youtu.be/K9zhBcDBX0Q Smart Watch Demo https://youtu.be/zD-7YdxynLo About AWTK GUI, ZLG has created a powerful, reliable, and easy-to-use open source GUI engine, AWTK. AWTK, called … Continue reading AWTK GUI Demo (Smart Watch) on nRF52840

I2C MEMS Microphone with Nordic nRF52 Series

This blog is described how to connect the MEMS Microphone through I2C to Nordic NRF52 Series chipset. Hardware Requirement: NRF52840 DK Board x 1 Adafruit I2S MEMS Microphonehttps://learn.adafruit.com/adafruit-i2s-mems-microphone-breakout/ Adafruit I2S MEMS Microphone Power Pins 3V - this is the power in pin. Technically it can be powered from as low as 1.6V to 3.6V but you'll … Continue reading I2C MEMS Microphone with Nordic nRF52 Series

Maximum BLE Throughput with IOS

This blog is to show the BLE throughput on difference users scenarios. I plan to show the maximum throughput on the real world, particular showing how fast the BLE communication with IOS devices. I would use 2 x nRF52840 DK for the central and peripheral bi direction communication and print out the live throughput. After … Continue reading Maximum BLE Throughput with IOS

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

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 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

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

Tutorial how to create an application on the nRF9160 DK

This chapter will take you through the steps required for creating an application in NCS for nRF9160. This blog is based on the Nordic Connect SDK v1.2.0 version. It may have need to change on the other versions (later). The propose of this blog is to show the idea how to run such example on NCS. … Continue reading Tutorial how to create an application on the nRF9160 DK

Over the air upgrade through Nordic nrfUtil

This blog is to introduce how to use the nRFUtil for Over The Air upgrade (OTA) in between host and device. I would focus on the BLE OTA only. It uses the nRF52 DK to connect to PC / Linux / MacOS. And then the nRFUtil tool would be the OTA host application. nRFUtil The … Continue reading Over the air upgrade through Nordic nrfUtil

Using External Flash to Store bonding info on nRF52 Series

This blog is to show how to use the external flash for storing the bonding information instead of using the internal flash. I would base on the Nordic SDK 16.0 and use the nRF52840 DK as the baseline to show how it works. By using the external flash for bonding storage, it can save at … Continue reading Using External Flash to Store bonding info on nRF52 Series

BLE HID Multiple Peripherl Example on Nordic nRF52 Series

This blog is to use Nordic nRF52840 as the BLE keyboard with multiple peripheral role. Those keyboard would connect to multiple mobile (BLE central) for demo. I would use the HOGP Keyboard example on this blog. HID over GATT Profile Specification (HOGP) This profile requires the Generic Attribute Profile (GATT), the Battery Service, the Device … Continue reading BLE HID Multiple Peripherl Example on Nordic nRF52 Series