The Magic Hat

Intro

Avnet invited me to the "electronica 2018" in Munich to hold a speech about IoT and NeoPixels. So I thought, wouldn't it be great if I could finish my speech with presenting a functional project on stage by controlling NeoPixels with a smartphone. Something with a practical, everyday use in home automation?.... Yeah, I got it! A hat! Home automation at its finest... somehow.

Setup

Quite easy. We just need a pin for the NeoPixels. Although the WeMos and the NeoPixels are working with 5V, they can be both be powered by a 3.7V LiPo battery for a short period. To wrap the stipe around the hat once, I needed a total of 19 NeoPixels (with a specification of 60 LEDs / meter).

Video

Modes

Off (0)

All LEDs are turned off.

On (1)

All LEDs are on.

Random (2) *

Colors changes randomly.

Kight Rider (3)

K.I.T.T mode. Like in the TV series.

Blue Light (4)

Like a blue light of a fire truck.

Driver (5) *

White on the front, red on the back.

Blinky (6)

Makes the LEDs blink.

* Mode doesn't use the selected color.

Links

Source Cfneopode

Code @ Bitbucket

Part List

WeMos - https://amzn.to/2HD7sQE

NeoPixels 60/m - https://amzn.to/2Tk516T

Fedora - https://amzn.to/2Ur18gV

LiPo 1200mAh - https://amzn.to/2UoLToK

Original Project Page

https://rohling-de.blogspot.com/2019/02/the-magic-hat.html

Pictures