Know How... 351

Halloween isn't just for kids! It's the perfect holiday for makers and DIY'ers to show off their creativity! Megan and Padre stir up some Halloween delights from the dollar store, then jump into 3D design for an arduino-controlled Ghoulish delight!

"Project Skully"
Overview
We're fast-prototyping a Halloween decoration that uses IC-controlled LEDs and an Arduino to create an over-the-candy lighting effect.

Parts List
16 LED WS2812 5050 LED Ring
Arduino Nano
HC-SR04 Ultrasonic Module

Also Need
4 x M3 screws
30 AWG Silicone Wire

3D Parts

1. Skully_Skull
2. Skully_Deck
3. Skully_LEDShelf
4. Skully_Base

Original Skull by 3DWP

Here are the 3D Parts & the Code
https://www.dropbox.com/s/ti5vi23oxli3dtu/KH351_Skully.zip?dl=0

How do WS2812 LEDs work?

• You need three pins: GND, 5V (or 12V) and Data
• The data moves down the string of LEDs, each one takes three bytes from the array being passes (red, blue, green) and sends the remainder of the array down the string.

Let's put everything together!

1. Show the code
2. Open it up to show the connections

From the SR04

• GND to Arduino GND
• VCC to Arduino 5V
• Trigger to Arduino D7
• Echo to Arduino D8

From the WS2812

• GND to Arduino GND
• VCC to Arduino 5V
• DIN to Arduino D3

Connect with us!

• Don't forget to check out our large library of projects at https://twit.tv/shows/know-how.
• Join our Google+ Community.
• Tweet at us at @PadreSJ and @Anelf3.

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