controLED

Controls a LED Matrix on the Raspberry Pi or another linux based system.

LED's can be light up on a Raspberry Pi 3 B. It's also possible to use it on another systems(i.e Ubuntu), just that the LED's are held virtually.

• Websocket connections allow controlling the LED's from a html frontend.
• Multiple connections are allowed to connect and control simultaneously.
• Different animations are available and can be started/played (Snake Game, Light Show, Dijkstras shortest path)
• Two different LED displays are supported and either one can be plugged in; displays: WS2812(PWM), 74HC595(SPI)

Getting Started

Use the package manager APT to install dependencies of controLED.

Install dependencies

apt-get install libboost-system-dev
apt-get install libssl-dev

Configure LED device on your Raspberry

Configuration for WS2812 PWM

/etc/modprobe.d/snd-blacklist.conf

blacklist snd_bcm2835

/boot/config.txt

# Enable audio(loads snd_bcm2835)
#dtparam=audio=on

Configuration for 74HC595 SPI

/boot/config.txt

device_tree=bcm2710-rpi-3-b.dtb
dtparam=spi=on

Build controLED from source

git clone <controLED-repo>
cd <controLED-project>
git submodule update --init
mkdir build
cd build
cmake ../
make

Usage

1. Start server

sudo bin/controLED

2. Connect from your local browser

cd <project-root>
cd html
chromium-browser controled.html

License