Programmable logo

Other Hardware Product Design
1

Hi, I saw a post similar to what I'm looking for -

I'm hoping to create a programmable logo similar to the above, that could possible respond to music. I'm hoping to install this into a leather jacket under some clear 3D printed spikes.

I have an Arduino Uno and WS2812 LEDs and have already been able to make them react to sound using a basic microphone - I have just purchased the sparkfun sound detector for the 3 outputs, waiting on delivery.
I am very much a beginner but learning quickly.
I'm looking for someone to point me in the direction of how to map the LEDs the image I want to use and convert this into code?

2

I found the memory capacity of an Uno/Nano can only control 622 Neopixels. Matrices that big would be about 32x16 neopixels. Your picture shows 70 or more across, so you would need to do the math for your matrix.

Here is a link to a simulation of a 32x16 matrix...

3

Thanks for this!

4

hope you have large pockets in the jacket to accommodate the large battery needed to power all the leds !

5

20mA per LED x 3 LED per pixel * 512 pixels = 30720mA = 30A. If you want to wear this for an hour you would want a 30A*hour battery capacity (at Neopixel volt rating).

6

and if you want to match the logo from the vidéo, it has probably 1500 / 2000 pixels

7

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