Mozilla IoT NeoPixel Demo

Table of Contents

• 1) Hardware
  • 1.1) Hardware Requirements
  • 1.2) Hardware Setup
• 2) Software
  • 2.1) Prerequisites
  • 2.2) Gateway Setup
  • 2.3) Arduino/Sensors Mezzanine Setup
  • 2.4) Setup WebThings
  • 2.5) Connecting the Gateway to the WebThings Application
• 3) Demo Video Featured in OpenHours

1) Hardware

1.1) Hardware Requirements

• Any two 96Boards CE
  • For the Purpose of this demo, I'll be using
    • Hikey960 as Gateway device.
    • Hikey as a Thing device.
• SeeedStudio Sensor Mezzanine; or
  • Arduino Uno and a Logic Level Shifter
• A strip of 12 Neopixels

1.2) Hardware Setup

The Arduino is connected via a 5v level shifter. In case you are using the Sensors Mezzanine, It has its own level shifter built in.

• Arduino/Sensors Mezzanine - 96Boards CE

Arduino/Sensors Mezzanine	5v <-Level Shifter-> 1.8v	96Boards CE
GND		GND
SDA		I2C0_SDA
SCL		I2C0_SCL

• Neopixel - Arduino/Sensors Mezzanine

Arduino/Sensors Mezzanine	Neopixels
GND	GND
5v	5v
D6	DI

2) Software

2.1) Prerequisites

• Make sure the latest Debian is installed on both the 96Boards CE device. You will be able to find the instructions on the documentation section of our website.
• In the case of Dragonboard410c you also have the option to install Fedora
• Install the Arduino IDE on your host system.

2.2) Gateway Setup

• Connect your Gateway device to your home Wifi network. You can do it from the terminal using $ nmtui
• Follow the Gateway installation Guide over at Mozilla-IoT GitHub Repository.
• Setup thing-url-adapter addon:

  $ cd ~/.mozilla-iot/addons/
  $ git clone https://github.com/mozilla-iot/thing-url-adapter
  $ cd thing-url-adapter
  $ ./package.sh
  $ cp thing-url-adapter-*.tgz ../
  $ cd ~/gateway
  $ npm start

2.3) Arduino or Sensors Mezzanine Setup

• Setup adafruit neopixel library
• In case of Arduino, simply use the IDE to flash the src/neo.ino file.
• For the SeeedStudio Sensors Mezzanine follow this guide to setup and flash using the Arduino IDE.

2.4) Setup WebThings

• Make sure everything is setup as show here.
• Connect your Things device to your home Wifi network. You can do it from the terminal using $ nmtui
• Install WebThings Python module: $ pip3 install webthing
• Note down the IP address: $ ip addres
• Run the Python code in src/things.py: $ python3 things.py

2.5) Connecting the Gateway to the WebThings Application

• Click the '+' to add a new Things device.

• You will see a new device called "My Lamp" show up.

  • If it doesn't show up, use the "Add by URL" option with the following address http://<things ip address>/8888

  

• After that you will be able to see the "My Lamp" device on the home page.

• Click the star next to the "My Thing" icon to expand it and fully expose the options.

3) Demo Video Featured in OpenHours