BitWizard DMX Interface

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The BitWizard DMX interface is an HAT (hardware attached on top) extension board for the Raspberry Pi [1].

Installation notes

GPIO configuration

For the BitWizard HAT to function it has to be set to output mode via the GPIO [2] pins. There are a number of programms which enable you to configure the GPIO pins. In this example we use pigpio [3]. To install pigpio on your Raspberry Pi either open a terminal window or connect to the Pi via SSH and type:

sudo apt install pigpio

Output mode

Then we create a shell script [4] which will configure the GPIO pins when we run the script. Let's call the script bitwizard_gpio.sh

#!/bin/bash
pigpiod
sleep 1
pigs m 18 W
pigs w 18 1
pigs m 14 0
pigs m 15 0
systemctl restart olad

Caveat: We presume your shell is Bash [5]. If you use another shell change the first line of the script accordingly. We also presume that you have either Open Lighting Architecture (OLA) [6] or QLC+ [7] installed on your Raspberry.

Then make the script executable:

sudo chmod +x bitwizard_gpio.sh

Run the script with:

sudo ./bitwizard_gpio.sh

Now the pin configuration is changed and the BitWizard DMX HAT should work.

See also

QLC+

References

External links

http://bitwizard.nl/wiki/Dmx_interface_for_raspberry_pi