# Pico IIDX - Beatmania IIDX controller

<img src="doc/main.jpg" width="80%">
<img src="doc/stacked.jpg" width="80%">

<video src="https://user-images.githubusercontent.com/11623830/229287886-d01893c5-04b6-41fc-a178-72c815e28c96.mp4" controls="controls" width="50%"></video>

Features:
* It's thin, really thin.
* Turntable and keyboard are separate.
* Magnetic connector.
* 1000Hz polling rate.
* HID lights, of course!
* Multiple turntable effects.
* Many live settings.

Thanks to many respectful guys/companies who made their tools or materials free or open source (KiCad, OpenSCAD, InkScape, Raspberry things).

## Caution
This is a difficult build, much more difficult than my previous Pico Popn project:  
https://github.com/whowechina/popn_pico.  
I suggest you to build the my Pico Popn first.  
This Pico IIDX project:  
* Heavily depends on 3D printing, both FDM and SLA (resin).
* Requires skills to solder tiny components and thin cables.

Move forward only if you're REALLY interested.  

**This README documentation is still in progress.**

## HOW TO BUILD
### Turntable Materials
* 1x AS5600 hall angular sensor board (23mm\*23mm)   
 <img src="doc/as5600.png" width="150px">
* 1x 6mm\*2mm magnet (should be magnetized in radial direction), sometimes comes with the AS5600 board.
* 1x 61804-2RS deep groove ball bearing (20x32x7mm), normally < 5US$;
* 3x M4*10mm screws (large flat head is better) and hex nuts.

### Keybard Materials
* 1x Raspberry Pi Pico.  
  https://www.raspberrypi.com/products/raspberry-pi-pico
* 11x Kailh Choc v1 or v2 keyswitches, to get better play feel, 7 of them should be 50g linear.  
  https://www.kailhswitch.com/mechanical-keyboard-switches/low-profile-key-switches/burnt-orange-switch.html  
  https://www.kailhswitch.com/mechanical-keyboard-switches/key-switches/kailh-low-profile-switch-choc-v2.html
* 7x Kailh low-profile stabilizers.  
  https://chosfox.com/products/kailh-1350-choc-switch-6-25u-stabilizer-set
* 2x Panasonic 6mm square tactile switch EVQP1K05M.  
  https://www3.panasonic.biz/ac/e/dl/catalog/index.jsp?series_cd=3473&part_no=EVQP1K05M
* 1x USB Type-C socket (918-418K2023S40001 or KH-TYPE-C-16P)
* 11x WS2812B-3528 RGB LEDs or if you want more challenge: 28x WS2812B-1516.
* 1x 0603 5.1kohm resistors for USB.
* 2x 0603 10ohm resistor.
* 5x 0805 1uF capacitors.

### The Cable
* 1x HDMI cable (ultra slim, diameter < 4mm), at least 50cm in length, we'll cut the HDMI connectors off, so pick a cheap one.
* 2X Magnetic pogopin connector sets, male and female. PCB side should use 90-degree pins, cable side use straight pins.

### Step 1 - Buy
### Step 2 - Solder
### Step 3 - Assemble
### Step 4 - Firmware