BitWizard DMX Interface: Difference between revisions
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The '''BitWizard DMX interface''' is an HAT (hardware attached on top) extension board for the Raspberry Pi <ref>[[wikipedia:Raspberry_Pi]]</ref>. |
The '''BitWizard DMX interface''' is an HAT (hardware attached on top) extension board for the Raspberry Pi <ref>[[wikipedia:Raspberry_Pi]]</ref>. |
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== Installation Notes == |
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=== GPIO Configuration === |
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For the BitWizard HAT to function it has to be set to ''output mode'' via the GPIO <ref>[[wikipedia:General-purpose_input/output]]</ref> pins. There are a number of programms which enable you to configure the GPIO pins. In this example we use ''pigpio'' <ref>http://abyz.me.uk/rpi/pigpio/</ref>. To install pigpio on your Raspberry Pi either open a terminal window or connect to the Pi via SSH. Then type: |
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sudo apt install pigpio |
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==== Output mode ==== |
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Then we create a ''shell script'' <ref>[[wikipedia:Shell_script]]</ref> which will configure the GPIO pins when we run the script. Let's call the script ''bitwizard_gpio.sh'' |
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#!/bin/bash |
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pigpiod |
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sleep 1 |
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pigs m 18 W |
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pigs w 18 1 |
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pigs m 14 0 |
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pigs m 15 0 |
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systemctl restart olad |
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'''''Caveat:''' We presume your shell is Bash <ref>[[wikipedia:Bash_(Unix_shell)]]</ref>. If you use another shell change the first line of the script accordingly. We also presume that you have either Open Lighting Architecture (OLA) <ref>https://www.openlighting.org/ola/</ref> or QLC+ <ref>https://www.qlcplus.org/</ref> installed on your Raspberry. |
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Then make the script ''executable'': |
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sudo chmod +x bitwizard_gpio.sh |
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Run the script with: |
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sudo ./bitwizard_gpio.sh |
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Now the pin configuration is changed and the BitWizard HAT should work. |
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== See also == |
== See also == |
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Revision as of 15:31, 13 April 2021
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. Then 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 HAT should work.