EEG-Cap/README.md

# EEG-Cap

Its a EEG-Cap  build based on the following Project: 

https://www.thingiverse.com/thing:894731

Blog post: https://beckystern.com/2015/07/01/eeg-costume-cap/

Many thanks to  the creators of the base.

# Why this repo?

I would try to build it too and made probably some enhancements.


## for the Electronics: 

45 of 74 leds used out of led strype.

I bough this [Offer](https://www.ebay.de/itm/394159975254?var=662672413551) and had some old spare arround.

(Had LED strypes at my place)

Silicone Wire  (Black and White) 

bought 20 AWG of this offering [Offer](https://www.ebay.de/itm/403485011841?var=673473457286)

for next build get a wire that is thinner like 30 AWG its horible to solder it like it is !!!

in both colors (Black and White)

I used Wled and a seed studio esp32-c3 

+ how to  use buttons with that? 

+ how to  use a  Oled With  that? 


I  would like to use something Micro or cyircut pyton  drivan to  dump  a python object directly against my head.

Neodymium Magnets.  74 +- 
bought 100 of 5*1 mm magnets from this [Offer](https://www.ebay.de/itm/135127880093?var=434596982749)


## for the Cap: 

### Sawing: 

I Produced the Cap  up  on  the Ideas up  on the sawing patterns of the original  pattern. 

My Head is taller than her,  therfore I schuld scale the pattern up  and some scaling effects appered. 

therefore i redrafted the pattern. 

how to  fit the two sides together ?  

I  used pressed buttens injected into  Jeans fabric. added upon the original Neopren  sheet. 

I used Zic Zag  stich for the sawings between the Neopren peaces. 

And to the jeans fabric.
 
### LEDs: 

I used Rests of multible old Led Stripes.  In the next build use round PCBs like menschend in the original tutoril. 

It would be mutch more fun. 

if you  use leds from diffrent stripes,  be aware that they all speak the same one wire Protocol and the color arangement is stadard. 

if you  dont't you  will be lucky the time you configure the firmware. 

to do  Soldering led Beams: 

I have a taller Head therefore should i use a diffrend spaceing and arangement. 

I decided to use a space of 30mm  between the led outlines... 

pattern should hopfully aranged like that: 

```
Idea:           Original:
R4 -> 5         R4 -> 6
R3 -> 7         R3 -> 7
R2 -> 9         R2 -> 8
R1 -> 9         R1 -> 9
L4 -> 9         L4 -> 9
L3 -> 9         L3 -> 8
L2 -> 7         L2 -> 7
L1 -> 5         L1 -> 6
```
what I would do would be decided at practical test

To  do: 
+ Solder The Stripes

Do  like To use a level  Shifter but is still not nesseserry.

Would like to  split the hut into  multible circits like 
```
L1, L2  to  a pin on mc 
L3, L4  to  a pin on mc
R1, R2  to  a pin on mc
R3, R4  to  a pin on mc
```
to reduce risc of failiure at a party.
probably will work.