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From the category archives: David Jones


SurfPad: RPI as the SurfPad (Bluetooth Connectivity)

This article covers using a Raspberry Pi running a RS4 version of IoT Core as the SurfPad, withe an Arduino devices as the Remote app. Connectivity for this is via Bluetooth..

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Notes on RPI Windows 10 IoT-Core WiFi & BT Connectivity

Windows 10 IoTCore, as implemented on the Raspberry Pi 2 (RPI2)  initially came with no WiFi or Bluetooth (BT) connectivity. These were then added as USB dongles but with a limited listed of hardware that worked. RPI3 has built in WiFi and BT. What is the state of play with IoTCore connectivity with the RPI now? Are there any issues?

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Win 10 IoT-Core - Raspberry Pi3 Bluetooth Driver Issue: Workaround

As I discussed in a previous blog article, the Raspberry PI3 Bluetooth driver for Windows 10-IoT-Core becomes errant and misses updates when the update rate is high. This is a known issue with the RPI. This problem does not exist other Windows 10 systems including the Dragonboard running IOT-Core. This article again discusses the problem and presents a workaround that does work. Includes how to disable/enable a driver using devcon.

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XAML Layout for a Dictionary-Addendum

Solved: How to use one line per item in a UWP XAML ListView

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Bluetooth Low Energy on Windows 10 Creators Edition and a RPi3 issue.

Several months ago I published a UWP app on GitHub that interacted with a Texas Instruments CC2650STK  SensorTag using the Bluetooth Low Energy (BLE) API.  It was based upon a previous Microsoft sample UWP app for interacting with an earlier TI SensorTag. Whilst the new app ran well on the Windows 10  Desktop and Windows 10 Phone, it was found to be erratic on the Raspberry Pi3 running Windows 10 IoT-Core.. working well some times but errant other times. Windows 10 Creators Edition added a key feature to BLE, namely the ability to connect to a device that is advertising without being paired. This blog examines the erratic nature of the RPi3 with BLE and investigates whether this is solved with the Creators Edition. In so do a comparison is made between between BLE Paired and Unpaired connectivity in the UWP app development context..

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Arduino Bluetooth Keypad Utilities: Event Keypad Sketch

This Sketch scans a phone keypad using the Keypad library and detects key pressed, released and held events. The events generate a string that is sent serially denoting the event and key.

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Arduino Bluetooth Keypad Utilities: UWP and Arduino Keypad Library on Codeplex

A library on Codeplex. Been a long time coming: Arduino sketches and UWP class libraries and apps, focused upon scanning a phone keypad as input (Bluetooth serial) to a UWP app running on a phone, desktop or IoT-Core device.

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Win 10 IoT-Core: Bluetooth Universal Windows Serial App–Update 1.2

This blog presents a Universal Windows App that connects to an embedded Bluetooth device over the Bluetooth Serial Profile using a genetic Bluetooth USB dongle. This app will run on both a Windows 10 IoT-Core devices such as a Raspberry PI2 and a Windows 10 Desktop. The blog covers in detail the key issues with pairing including where a passkey is required with a RPI2 as well as a Bluetooth primer. Update 1.2: One bug fix (was writing send text twice) and and one code improvement (menu returns DeviceInformation so no need to requery for it.)

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Win 10 IoT Core: Raspberry Pi 2 Peripherals – Serial (Update 3)

There are currently 2 reserved GPIO pins on the RPI2 that ordinarily are SOC (I call native) serial. A future Tx and Rx  but not at the moment. Serial is achieved on the RPI2 with Win 10 IoT Core via a USB-Serial device connected to a Host USB port on the RPI2. There are though limitations in that the widely used FTDI chipset is not supported by Microsoft, although we have a solution. An alternative is over Bluetooth but there is an issue there.

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Win 10 IoT Core: Raspberry Pi 2 Peripherals - Introduction

Whilst the Raspberry Pi 2 has extensibility through GPIO, I2C, SPI and Single wire, the main interface for adding off-the-shelf  peripherals is via USB. Unlike the desktop, there is though only a limited set of USB peripherals that can be used on the RPI2 running Windows 10 IoT in the first release. This series of articles looks at what is available and what the overarching issues are. The first Article is “Connected Devices”

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