BitWizard DMX Interface - Revision history

Annegret04 at 11:36, 15 April 2021

2021-04-15T11:36:27Z

← Older revision		Revision as of 11:36, 15 April 2021
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	http://bitwizard.nl/wiki/Dmx_interface_for_raspberry_pi		http://bitwizard.nl/wiki/Dmx_interface_for_raspberry_pi

	[[Category:Lighting ~~Controller~~]]		[[Category:Lighting Control]]

HR at 13:52, 14 April 2021

2021-04-14T13:52:53Z

← Older revision		Revision as of 13:52, 14 April 2021
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	==== Creating a cron job ====		==== Creating a cron job ====

	The changes to the GPIO pin configuration are not persistent. This means that we have to run the script again after we rebooted the Raspberry. To automate this task we create a cron job which runs our script after reboots.		The changes to the GPIO pin configuration are not persistent. This means that we have to run the script again after we rebooted the Raspberry. To automate this task we create a cron job <ref>[[wikipedia:Cron]]</ref> which runs our script after reboots.

	There are multiple ways to create a cron job. We choose to create a cron job file in /etc/cron.d and name our file ''bitwizard_gpio_cron''. Files in /etc/cron.d have to follow a naming convention or they will be ignored. The filenames may constist of ASCII upper- and lower-case letters, ASCII digits, ASCII underscore and ASCII minus-hyphen.		There are multiple ways to create a cron job. We choose to create a cron job file in /etc/cron.d and name our file ''bitwizard_gpio_cron''.

			'''''Caveat:''''' Files in /etc/cron.d have to follow a naming convention or they will be ignored. The filenames may constist of ASCII upper- and lower-case letters, ASCII digits, ASCII underscore and ASCII minus-hyphen.

	/etc/cron.d/bitwizard_gpio_cron contains:		/etc/cron.d/bitwizard_gpio_cron contains:

HR at 13:45, 14 April 2021

2021-04-14T13:45:09Z

@@ Line 2: / Line 2: @@
 == Installation notes ==
 === GPIO configuration ===
-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 and type:
+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.
 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''
@@ Line 32: / Line 33: @@
 Now the pin configuration is changed and the BitWizard DMX HAT should work.
 == See also ==

HR at 19:29, 13 April 2021

2021-04-13T19:29:36Z

← Older revision		Revision as of 19:29, 13 April 2021
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	== Installation notes ==		== Installation notes ==

	=== GPIO ~~Configuration~~ ===		=== GPIO configuration ===
	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 and type:		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 and type:

HR at 19:29, 13 April 2021

2021-04-13T19:29:19Z

← Older revision		Revision as of 19:29, 13 April 2021
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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>.

	== Installation ~~Notes~~ ==		== Installation notes ==

	=== GPIO Configuration ===		=== GPIO Configuration ===

HR at 19:28, 13 April 2021

2021-04-13T19:28:28Z

← Older revision		Revision as of 19:28, 13 April 2021
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	<div class="references-small"><references /></div>		<div class="references-small"><references /></div>

	== External ~~Links~~ ==		== External links ==
	http://bitwizard.nl/wiki/Dmx_interface_for_raspberry_pi		http://bitwizard.nl/wiki/Dmx_interface_for_raspberry_pi

HR at 15:36, 13 April 2021

2021-04-13T15:36:52Z

← Older revision		Revision as of 15:36, 13 April 2021
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	=== GPIO Configuration ===		=== GPIO Configuration ===
	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:		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 and type:

	sudo apt install pigpio		sudo apt install pigpio

HR at 15:33, 13 April 2021

2021-04-13T15:33:44Z

← Older revision		Revision as of 15:33, 13 April 2021
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	sudo ./bitwizard_gpio.sh		sudo ./bitwizard_gpio.sh

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

	== See also ==		== See also ==

HR at 15:31, 13 April 2021

2021-04-13T15:31:24Z

← Older revision		Revision as of 15:31, 13 April 2021
Line 1:		Line 1:
	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>.

			== Installation Notes ==

			=== GPIO Configuration ===
			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:

			sudo apt install pigpio

			==== Output mode ====

			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''

			#!/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 <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.

			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.

	== See also ==		== See also ==

HR at 13:11, 13 April 2021

2021-04-13T13:11:13Z

← Older revision		Revision as of 13:11, 13 April 2021
Line 1:		Line 1:
	The '''BitWizard DMX interface''' is an HAT (hardware attached on top) extension board for the Raspberry Pi.		The '''BitWizard DMX interface''' is an HAT (hardware attached on top) extension board for the Raspberry Pi <ref>[[wikipedia:Raspberry_Pi]]</ref>.

			== See also ==
			[[QLC+]]

			== References ==
			<div class="references-small"><references /></div>

	== External Links ==		== External Links ==