GMU:PCB Arts/L.-E. Kühr/GOL-Midi - Revision history

Lalalolo: /* GOL-Midi Semesterprojekt */

2021-05-20T17:44:29Z

GOL-Midi Semesterprojekt

← Older revision		Revision as of 17:44, 20 May 2021
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	[[File:all_rules.png\|800px]]		[[File:all_rules.png\|800px]]

			-----

	==Schematic==		==Schematic==
	To keep the controls simple, the only inputs used are two potentiometers and a button. for the LED matrix a preassebled 8x8 matrix with a MAX7219 controller are mounted through the back to make it shine through the PCB. Thus five holes have to be added for the five pins of the MAX7219 have to be added.		To keep the controls simple, the only inputs used are two potentiometers and a button. for the LED matrix a preassebled 8x8 matrix with a MAX7219 controller are mounted through the back to make it shine through the PCB. Thus five holes have to be added for the five pins of the MAX7219 have to be added.
	[[File:Schematic.PNG\|800px]]		[[File:Schematic.PNG\|800px]]

			-----

	==PCB==		==PCB==
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	After a rough layout in PCBnew, I went to Inkscape, traced an old GameBoy and began to make outlines for the edge-cuts and silkscreen layer. After importing the general shape, I layouted all the mounting holes and pins and began to wire everything on the backside of the PCB. I left a window in the mask-layer, where the LED matrix is going to be mounted to and surrounded every component with a symbolic outline in the silkscreen-layer.		After a rough layout in PCBnew, I went to Inkscape, traced an old GameBoy and began to make outlines for the edge-cuts and silkscreen layer. After importing the general shape, I layouted all the mounting holes and pins and began to wire everything on the backside of the PCB. I left a window in the mask-layer, where the LED matrix is going to be mounted to and surrounded every component with a symbolic outline in the silkscreen-layer.
	[[File:pcb_new.PNG\|800px]]		[[File:pcb_new.PNG\|800px]]

			-----

	===Generation===		===Generation===
	To fill the general outline with texture, a 1-dimensional cellular automata was used with random inputs and the infamous rule 30. I upscaled the resulting texture and imported it into Inkscape. The texture was then masked to exclude the immediate surroundings of the components. It was then once used for the silkscreen (just around the screen) and once for the front copper for the rest of the PCB.		To fill the general outline with texture, a 1-dimensional cellular automata was used with random inputs and the infamous rule 30. I upscaled the resulting texture and imported it into Inkscape. The texture was then masked to exclude the immediate surroundings of the components. It was then once used for the silkscreen (just around the screen) and once for the front copper for the rest of the PCB.
	[[File:rule30.png\|600px]]		[[File:rule30.png\|600px]]

			-----

	==Final Design==		==Final Design==
	[[File:3d-back.png\|800px]]		[[File:3d-back.png\|800px]]
	[[File:3d-front.png\|800px]]		[[File:3d-front.png\|800px]]

			-----

	==Programming==		==Programming==
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	===MIDI===		===MIDI===
	To send the state of the simulation using MIDI the library MIDIUSB (https://github.com/arduino-libraries/MIDIUSB) was used. The state of the simulation is mapped to chrods of a selected scale that are hardcoded in memory and can be send all at once or as an arpeggio. To map to the scales the state of the automata is interpreted as an 8-Bit number that is then mapped to the tone. The speed or time of the interval is controlled by the shield.		To send the state of the simulation using MIDI the library MIDIUSB (https://github.com/arduino-libraries/MIDIUSB) was used. The state of the simulation is mapped to chrods of a selected scale that are hardcoded in memory and can be send all at once or as an arpeggio. To map to the scales the state of the automata is interpreted as an 8-Bit number that is then mapped to the tone. The speed or time of the interval is controlled by the shield.

			-----

	==Parts==		==Parts==
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	* MAX7219 8x8 LED Matrix-Modul		* MAX7219 8x8 LED Matrix-Modul
	* Arduino Micro		* Arduino Micro

			-----

	==Build==		==Build==
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	[[File:ezgif-6-46dbab99ab2a.gif\|360px]]		[[File:ezgif-6-46dbab99ab2a.gif\|360px]]
	(GIFs, click to play)		(GIFs, click to play)

			-----

	==Usage==		==Usage==
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	* '''Hold Left & Hold Right''' (Longer than 500ms): '''Start/Stop playing'''		* '''Hold Left & Hold Right''' (Longer than 500ms): '''Start/Stop playing'''
	* '''Hold Left & Hold Right''' (Longer than 2000ms): Reset everything'''		* '''Hold Left & Hold Right''' (Longer than 2000ms): Reset everything'''

			-----

	==Demonstration==		==Demonstration==
	{{#ev:youtube\|7doCJ39owTw\|735}}		{{#ev:youtube\|7doCJ39owTw\|735}}

			-----

	==Further Reading:==		==Further Reading:==

Lalalolo: /* Demonstration */

2021-05-20T17:43:02Z

Demonstration

← Older revision		Revision as of 17:43, 20 May 2021
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	(GIFs, click to play)		(GIFs, click to play)

	==~~Demonstration~~==		==Usage==
	To use the build just plug it in using a micro-USB cable and enable it in the DAW as a Midi-Device (named Arduino Micro).		To use the build just plug it in using a micro-USB cable and enable it in the DAW as a Midi-Device (named Arduino Micro).
	Since the build only has two buttons (left and right) for many functionalities, alls buttons have multiple uses and combinations:		Since the build only has two buttons (left and right) for many functionalities, alls buttons have multiple uses and combinations:
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	* '''Hold Left & Hold Right''' (Longer than 500ms): '''Start/Stop playing'''		* '''Hold Left & Hold Right''' (Longer than 500ms): '''Start/Stop playing'''
	* '''Hold Left & Hold Right''' (Longer than 2000ms): Reset everything'''		* '''Hold Left & Hold Right''' (Longer than 2000ms): Reset everything'''

			==Demonstration==
	{{#ev:youtube\|7doCJ39owTw\|735}}		{{#ev:youtube\|7doCJ39owTw\|735}}

Lalalolo: /* Demonstration */

2021-05-20T17:42:39Z

Demonstration

← Older revision		Revision as of 17:42, 20 May 2021
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	==Demonstration==		==Demonstration==
			To use the build just plug it in using a micro-USB cable and enable it in the DAW as a Midi-Device (named Arduino Micro).
	Since the build only has two buttons (left and right) for many functionalities, alls buttons have multiple uses and combinations:		Since the build only has two buttons (left and right) for many functionalities, alls buttons have multiple uses and combinations:
	* Click Left (Down, Up under 200ms): Next Chord		* '''Click Left''' (Down, Up under 200ms): '''Next Chord'''
	* Hold Right & Click Left (Hold first): Previous Chord		* '''Hold Right & Click Left''' (Hold first): '''Previous Chord'''

	* Click Right (Down, Up under 200ms): Next Cellular Automata Rule (0-255 wraps around)		* '''Click Right''' (Down, Up under 200ms): '''Next Cellular Automata Rule''' (0-255 wraps around)
	* Hold Left & Click Right (Hold first): Previous Cellular Automata Rule (0-255 wraps around)		* '''Hold Left & Click Right''' (Hold first): '''Previous Cellular Automata Rule''' (0-255 wraps around)

	* Hold Left (Longer than 500ms): Increase BPM		* '''Hold Left''' (Longer than 500ms): '''Increase BPM'''
	* Hold Right (Longer than 500ms): Decrease BPM		* '''Hold Right''' (Longer than 500ms): '''Decrease BPM'''

	* Hold Left & Hold Right (Longer than 500ms): Start/Stop playing		* '''Hold Left & Hold Right''' (Longer than 500ms): '''Start/Stop playing'''
	* Hold Left & Hold Right (Longer than 2000ms): Reset everything		* '''Hold Left & Hold Right''' (Longer than 2000ms): Reset everything'''
	{{#ev:youtube\|7doCJ39owTw\|735}}		{{#ev:youtube\|7doCJ39owTw\|735}}

Lalalolo: /* Demonstration */

2021-05-20T17:40:38Z

Demonstration

← Older revision		Revision as of 17:40, 20 May 2021
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	* Click Left (Down, Up under 200ms): Next Chord		* Click Left (Down, Up under 200ms): Next Chord
	* Hold Right & Click Left (Hold first): Previous Chord		* Hold Right & Click Left (Hold first): Previous Chord

	* Click Right (Down, Up under 200ms): Next Cellular Automata Rule (0-255 wraps around)		* Click Right (Down, Up under 200ms): Next Cellular Automata Rule (0-255 wraps around)
	* Hold Left & Click Right (Hold first): Previous Cellular Automata Rule (0-255 wraps around)		* Hold Left & Click Right (Hold first): Previous Cellular Automata Rule (0-255 wraps around)

	* Hold Left (Longer than 500ms): Increase BPM		* Hold Left (Longer than 500ms): Increase BPM
	* Hold Right (Longer than 500ms): Decrease BPM		* Hold Right (Longer than 500ms): Decrease BPM

	* Hold Left & Hold Right (Longer than 500ms): Start/Stop playing		* Hold Left & Hold Right (Longer than 500ms): Start/Stop playing
	* Hold Left & Hold Right (Longer than 2000ms): Reset everything		* Hold Left & Hold Right (Longer than 2000ms): Reset everything

Lalalolo: /* Demonstration */

2021-05-20T17:40:18Z

Demonstration

← Older revision		Revision as of 17:40, 20 May 2021
Line 49:		Line 49:

	==Demonstration==		==Demonstration==
	Since the build only has two buttons for many functionalities, alls buttons have multiple uses and combinations:		Since the build only has two buttons (left and right) for many functionalities, alls buttons have multiple uses and combinations:
	* Click Left ~~Button~~ (Down, Up under 200ms): Next Chord		* Click Left (Down, Up under 200ms): Next Chord
	* Hold Right ~~Button~~ & Click Left ~~Button~~ (Hold first): Previous Chord		* Hold Right & Click Left (Hold first): Previous Chord
	* Click Right ~~Button~~ (Down, Up under 200ms): Next Cellular Automata Rule (0-255 wraps around)		* Click Right (Down, Up under 200ms): Next Cellular Automata Rule (0-255 wraps around)
	* Hold Left ~~Button~~ & Click Right ~~Button~~ (Hold first): Previous Cellular Automata Rule (0-255 wraps around)		* Hold Left & Click Right (Hold first): Previous Cellular Automata Rule (0-255 wraps around)
	* Hold Left ~~Button~~ (Longer than 500ms): Increase BPM		* Hold Left (Longer than 500ms): Increase BPM
	* Hold Right ~~Button~~ (Longer than 500ms): Decrease BPM		* Hold Right (Longer than 500ms): Decrease BPM
	* Hold Left ~~Button~~ & Hold Right ~~Button~~ (Longer than 500ms): Start/Stop playing		* Hold Left & Hold Right (Longer than 500ms): Start/Stop playing
	* Hold Left ~~Button~~ & Hold Right ~~Button~~ (Longer than 2000ms): Reset everything		* Hold Left & Hold Right (Longer than 2000ms): Reset everything
	{{#ev:youtube\|7doCJ39owTw\|735}}		{{#ev:youtube\|7doCJ39owTw\|735}}

Lalalolo: /* Demonstration */

2021-05-20T17:39:44Z

Demonstration

← Older revision		Revision as of 17:39, 20 May 2021
Line 49:		Line 49:

	==Demonstration==		==Demonstration==
			Since the build only has two buttons for many functionalities, alls buttons have multiple uses and combinations:
			* Click Left Button (Down, Up under 200ms): Next Chord
			* Hold Right Button & Click Left Button (Hold first): Previous Chord
			* Click Right Button (Down, Up under 200ms): Next Cellular Automata Rule (0-255 wraps around)
			* Hold Left Button & Click Right Button (Hold first): Previous Cellular Automata Rule (0-255 wraps around)
			* Hold Left Button (Longer than 500ms): Increase BPM
			* Hold Right Button (Longer than 500ms): Decrease BPM
			* Hold Left Button & Hold Right Button (Longer than 500ms): Start/Stop playing
			* Hold Left Button & Hold Right Button (Longer than 2000ms): Reset everything
	{{#ev:youtube\|7doCJ39owTw\|735}}		{{#ev:youtube\|7doCJ39owTw\|735}}

Lalalolo: /* Build */

2021-05-20T17:33:14Z

Build

← Older revision		Revision as of 17:33, 20 May 2021
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	I sadly had to use cables for the LED Matrix and parts of the buttons, due to my GND and 5V+ beeing all connected to each other.		I sadly had to use cables for the LED Matrix and parts of the buttons, due to my GND and 5V+ beeing all connected to each other.
	The combination of lines and cables however works as intended.		The combination of lines and cables however works as intended.

	[[File:ezgif-6-ba2d047897d0.gif\|360px]]		[[File:ezgif-6-ba2d047897d0.gif\|360px]]
	[[File:ezgif-6-46dbab99ab2a.gif\|360px]]		[[File:ezgif-6-46dbab99ab2a.gif\|360px]]

Lalalolo: /* Build */

2021-05-20T17:33:01Z

Build

← Older revision		Revision as of 17:33, 20 May 2021
Line 37:		Line 37:

	==Build==		==Build==
	[[File:PCB Arts -L.E.K Build.jpg\|~~232px~~]][[File:PCB Arts -L.E.K Build 2.jpg\|~~503px~~]]		[[File:PCB Arts -L.E.K Build.jpg\|176px]][[File:PCB Arts -L.E.K Build 2.jpg\|559px]]

	Due to an error I did on the left potentionmeter (missing connection). I was not able to follow my planned design and had to improvise.		Due to an error I did on the left potentionmeter (missing connection). I was not able to follow my planned design and had to improvise.

Lalalolo: /* Build */

2021-05-20T17:32:04Z

Build

← Older revision		Revision as of 17:32, 20 May 2021
Line 37:		Line 37:

	==Build==		==Build==
	[[File:PCB Arts -L.E.K Build.jpg\|~~220px~~]][[File:PCB Arts -L.E.K Build 2.jpg\|~~510px~~]]		[[File:PCB Arts -L.E.K Build.jpg\|232px]][[File:PCB Arts -L.E.K Build 2.jpg\|503px]]

	Due to an error I did on the left potentionmeter (missing connection). I was not able to follow my planned design and had to improvise.		Due to an error I did on the left potentionmeter (missing connection). I was not able to follow my planned design and had to improvise.

Lalalolo: /* Build */

2021-05-20T17:31:04Z

Build

← Older revision		Revision as of 17:31, 20 May 2021
Line 37:		Line 37:

	==Build==		==Build==
	[[File:PCB Arts -L.E.K Build.jpg\|220px]][[File:PCB Arts -L.E.K Build 2.jpg\|~~520px~~]]		[[File:PCB Arts -L.E.K Build.jpg\|220px]][[File:PCB Arts -L.E.K Build 2.jpg\|510px]]

	Due to an error I did on the left potentionmeter (missing connection). I was not able to follow my planned design and had to improvise.		Due to an error I did on the left potentionmeter (missing connection). I was not able to follow my planned design and had to improvise.