Controller board

The self-o-mat kits provided by x-tech UG include a controller board.

The Arduino-based board

• connects the arcade button and the LED ring to a Raspberry Pi and
• powers the screen and the Raspberry Pi and connects the on/off switch.

Hardware

The original board is based on an Arduino Nano.

Wiring

PIN_ON Here it the pinout used by the firmware:

Pin	Alias	Function	Input/Output	Connection
4	PIN_LED	NeoPixel data pin	Output	To NeoPixel data input
2	PIN_BUTTON	Trigger Button	Input	Connect trigger button with a pull-up resistor
3	PIN_SWITCH	ON/OFF Switch	Input	Connect ON/OFF switch with a pull-up resistor. If not needed, pull to 5V
8	PIN_ON	POWER	Output	Can be used to control PC/screen power. Connect PC/screen via relay or leave open if unused

Firmware

The firmware is located in ./Arduino.

In order to build the Arduino sketch, an installation of the Arduino IDE is required.

Known issues

Building the Arduino sketch yields the following error message:

globals.h:4:10: fatal error: Adafruit_NeoPixel.h: No such file or directory
 #include <Adafruit_NeoPixel.h>
          ^~~~~~~~~~~~~~~~~~~~~
compilation terminated.
exit status 1

Adafruit_NeoPixel.h: No such file or directory

You forgot to add the Adafruit NeoPixel library. Select Tools > Manage Libraries... from the menu. Search for "Adafruit NeoPixel", select the correct library and click the Install button.

Building the Arduino sketch yields the following error message:

BusyState.cpp:4:10: fatal error: PinChangeInterrupt.h: No such file or directory
 #include "PinChangeInterrupt.h"
          ^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
exit status 1
PinChangeInterrupt.h: No such file or directory

You forgot to add the PinChangeInterrupt library by NicoHood. Select Tools > Manage Libraries... from the menu. Search for "PinChangeInterrupt", select the correct library and click the Install button.