An IoT project using the SparkFun Inventor’s Kit for Photon

Project abstract

If you missed the last Duke Men’s basketball game, use this IoT device to instantly check the outcome and score via a button press, voice command, or other IFTTT trigger! This project uses an Http Get Request, OLED screen, servomotor and interrupts.

Full project description

I built this project to utilize some of the coolest components of the SparkFun Inventor’s Kit: the MicroOLED screen, the servomotor, and the internet-connected P1 Photon chip. A library is used to make a Get Request to pull information from diddukewin.com. Particle Cloud functions are used to expose the core functionality of the device to the web.

Parts Used

SparkFun Photon RedBoard
Mini breadboard
SparkFun Micro OLED
Push-button
Servomotor
Hookup jumper wires
Micro-USB power source (V-USB used for servo)

Source Code

The diddukewin.ino file is included in the src folder of the Gitlab repo: gitlab.oit.duke.edu/dpb6/diddukewin

If you are using the Build IDE, you need to add the SparkFunMicroOLED library (version 1.3.0) to your project and create new files for the included HttpClient.cpp and HttpClient.h, which were modified to enlarge the buffer size for the response body.

Techniques and Features Utilized:

HttpClient library to make a Get request
OLED library to make writing to the screen easy
Built-in servo object for waving the Duke flag
Interrupt to catch the button press
Particle Cloud functions to expose the wave, displayScore and check routines

IFTTT voice command

Using an IFTTT Applet I connected my Google Assistant with my Particle Photon Cloud Function check. I can now say, “Ok Google, Did Duke Win?” and my IoT device will check the web and show me the result.