rpi-arcade-lights

A program that lights up arcade buttons according to the buttons used in the game currently being played. This pairs up nicely with the custom Arduino arcade controller I made.

Before Retropie boots a game, it first runs a runcommand file. This script can be appended to that file.

./rpi_button_lights.py is the main file, ./test_lights.py can be used to make sure your wiring is correct.

Demo

rpi-arcade-lights.demo.mp4

Alternatively, see on Youtube.

Wiring

Adafruit PCA9685		Raspberry Pi
GND	-->	GND
OE	-->
SCL	-->	5
SDA	-->	3
VCC	-->	3V3

Raspberry Pi Pinout

Adafruit PCA9685

Installation

1. Enable I2C:

You will probably get this error ValueError: No Hardware I2C on (scl,sda)=(3, 2). So we need to enable I2C via sudo raspi-config > Interface Options > I2C.

2. Reboot the Pi

3. Run the following commands:

   Main file

   pip3 install -r requirements.txt cp rpi_button_lights.py /usr/local/bin/ cd /usr/local/bin/ chmod a+x rpi_button_lights.py cd -

   Database

   cp rpi_button_lights_database.csv /usr/local/etc/

   Game launch script

   cp event_hook_scripts/runcommand-onstart.sh /opt/retropie/configs/all cd /opt/retropie/configs/all chmod a+x runcommand-onstart.sh cd -

   Game quit script

   cp event_hook_scripts/runcommand-onend.sh /opt/retropie/configs/all cd /opt/retropie/configs/all chmod a+x runcommand-onend.sh cd -

   Arcade boot and shutdown script

   sudo cp event_hook_scripts/arcade-button-lights.service /etc/systemd/system sudo chmod a+x arcade-button-lights.service sudo systemctl enable arcade-button-lights

Adding new games

Find button configurations by Google Image searching: controls site:gamesdatabase.org.

Add games as a new row in the rpi_button_lights_database.csv file.