Jo Franchetti - Tweet My Wedding Dress - Codemotion Rome 2019

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Inspired by an interest in wearable tech, rainbows and a love of silly tech projects, I decided to make my own first wearable tech - a wedding dress full of lights that could be controlled by tweets from my friends and family! My talk will go over the tech I used (suitable for absolute beginners), the mistakes I made and the lessons I learnt. From using the Twitter API, writing my own API, coding for an Arduino and wiring the whole thing up to the worst bit - THE SEWING. I aim to share the message that it is ok to make mistakes, we all do! If you keep trying you can make something magical!

Technology

Tweet My Wedding Dress
Jo Franchetti
Rome | March 22 - 23, 2019

Ohai!
I am Jo Franchetti
You can ﬁnd me at @thisisjofrank
and my dress @josdress

Our story begins at an
EMF Camp long ago...
(Well, two years ago to be precise)

● Has WiFi connectivity
● Is small enough to ﬁt in a
dress
● Has some great
documentation
● Has lots of tutorials and
libraries to copy!
● Is affordable
● Addressable RGB Pixels
● Has some great
documentation
● Has lots of tutorials and
libraries to copy!
● Individually sewable
● Are a little expensive :(
Adafruit Flora NeoPixelsAdafruit Feather Huzzah
What did I learn?

Adafruit Feather Huzzah
What did I buy?
Knockoff NeoPixels
Soldering iron & solder

What did I buy?
Hot glue gun
White tulle(net)A lot of single core wire

Getting Started!
Install the
Arduino IDE
https://learn.adafruit.com/a
dafruit-feather-huzzah-es
p8266/using-arduino-ide

Install the ESP8266 Board Package and NeoPixel library
https://learn.adafruit.com/ﬂora-rgb-smart-pixels
Getting Started!

Getting Started!
Solder some LEDs
together!

Connect
LED string
to the board
Getting Started!

“Red
Green
BluePurple
Gold
Peachpuff
Chocolate
Ghostwhite
Mediumspringgreen
Tomato
Cornflowerblue
Mintcream

1. Set up a twitter account for people to tweet
colours to
2. Write code that gets those tweets and converts
the colour names to RGB values
3. Get the RGB values to the Adafruit Feather
4. Send the RGB values from the board to the LEDs
What do I need to do?

● OAuth + PHP
https://www.youtube.com/watch?v=GQaPt-gQVRI
● Node + Twit https://www.npmjs.com/package/twit
● https://glitch.com/~tweet-my-wedding-dress
Using the Twitter API

var colours = {
"aliceblue": "240, 248, 255",
"antiquewhite": "250, 235, 215",
"aqua": "0, 255, 255",
"aquamarine": "127, 255, 212",
"azure": "240, 255, 255",
"beige": "245, 245, 220",
"bisque": "255, 228, 196",
"black": "0, 0, 0",
"blanchedalmond": "255, 235, 205",
"blue": "0, 0, 255",
"blueviolet": "138, 43, 226",
"brown": "165, 42, 42",
"burlywood": "222, 184, 135",
"cadetblue": "95, 158, 160",
"chartreuse": "127, 255, 0",
"chocolate": "210, 105, 30",
"coral": "255, 127, 80",
"cornflowerblue": "100, 149, 237",
etc etc …
} https://htmlcolorcodes.com/color-names/

https://tweet-my-dress.herokuapp.com/dress

Coding for the Adafruit Feather
● File > Examples
● ESP8266WiFI > WiFi Client
○ Connect to wiﬁ
○ Send a GET request
● AdaFruit Neopixel > Simple
○ Deﬁne a pin to send data
○ Deﬁne number of LEDs on string
○ Set colour of LEDs

Gotchas!
● Not all RGB LED pixels are equal - check
whether yours are RGB or RGBW and set
the type accordingly
● Knockoff NeoPixels are all well and good
but they might be RBG??

Thank you!
Any questions?
You can ﬁnd me at @thisisjofrank

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