OLA Installation on Raspberry Pi

Start with Basic Pi Image (Full or Light)

Updates

sudo apt-get update

sudo apt-get upgrade

sudo apt update

Installation

sudo apt install ola

Check the Status

service olad status

Permissions

grep spi: /etc/group

sudo adduser olad spi

grep spi: /etc/group

Restart

sudo service olad restart

sudo adduser pi olad

Enabling UART

sudo nano /boot/config.txt

Change an Add

enable_uart=1
init_uart_clock=16000000

sudo usermod -a -G dialout pi

Enable UART Plugin

sudo nano /home/pi/.ola/ola-uartdmx.conf

Change Content to

enabled = true
device = /dev/ttyAMA0
/dev/ttyAMA0-break = 100
/dev/ttyAMA0-malf = 100

Setup of Hardware Device

sudo nano /etc/init.d/olad

Add after line 30

/sbin/start-stop-daemon --start --background --make-pidfile --pidfile ✩PIDFILE --umask 0002 --chuid ✩USER --exec ✩DAEMON -- ✩DAEMON_ARGS

# set GPIO24 high (drive enable of IC1) and GPIO16 low (drive enable of IC2)
echo "24" > /sys/class/gpio/export
echo "16" > /sys/class/gpio/export
sleep 1
echo "out" > /sys/class/gpio/gpio24/direction
echo "out" > /sys/class/gpio/gpio16/direction
sleep 1
echo "1" > /sys/class/gpio/gpio24/value
echo "0" > /sys/class/gpio/gpio16/value

Accessible from http://xxx.xxx.xxx.xxx:9090/

http://clx.freeshell.org/ola-raspberry-uart-dmx.html

Source:

Dave Thwaites ; Flo Edelmann