Massive MIDI Monome for the Manchester Mini Makerfaire

Video:

https://plus.google.com/u/0/114187442952096078228/posts/4SFaY6JsuETOn 16 July 2013 22:04, Bob Clough parag0n@ivixor.net wrote:

The glass tiles and neoprene strip arrived, been experimenting with them
tonight:

[image: Inline images 1]

Looks like this is going to work awesomely :smiley:

On 15 July 2013 21:21, Charlotte Gore conspiracygore@gmail.com wrote:

Wiring this thing up is going to be truly evil. Made an 8x8 button matrix
and an 8x8 LED matrix today. Tomorrow I’ll add the rest of the circuit and
start coding. Fun times!

https://lh6.googleusercontent.com/-lPZOzHEah8I/UeRZIEA5jrI/AAAAAAAAANY/FTs4fWv4DbI/s1600/photo+(2).jpg


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Very cool!! That should work wellOn Tue, Jul 16, 2013 at 10:07 PM, Bob Clough parag0n@ivixor.net wrote:

Video:

https://plus.google.com/u/0/114187442952096078228/posts/4SFaY6JsuET

On 16 July 2013 22:04, Bob Clough parag0n@ivixor.net wrote:

The glass tiles and neoprene strip arrived, been experimenting with them
tonight:

[image: Inline images 1]

Looks like this is going to work awesomely :smiley:

On 15 July 2013 21:21, Charlotte Gore conspiracygore@gmail.com wrote:

Wiring this thing up is going to be truly evil. Made an 8x8 button
matrix and an 8x8 LED matrix today. Tomorrow I’ll add the rest of the
circuit and start coding. Fun times!

https://lh6.googleusercontent.com/-lPZOzHEah8I/UeRZIEA5jrI/AAAAAAAAANY/FTs4fWv4DbI/s1600/photo+(2).jpg


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Okay, I managed to get the MAX7221 Led driver working thanks to a library
someone has written. For some reason it didn’t like using the hardware SPI

  • I guess this is because the chip is very fussy about the latch being
    pulled high on the 16th clock pulse exactly which can’t really be done
    with the Arduino SPI library, I don’t think.

Anyway, LED matrix working, but wondering now if we in fact need two - one
colour for the ‘sweep’ of the beat and another to indicate notes being on
or off. It does massively increase the amount of wiring though! The
alternative is to have the beat sweep simply invert the LEDs for the column
it’s in.

Tomorrow I’ll add the mux/demux chips to the button matrix and get that bit
working so we can toggle individual LEDs with button presses.

[image: Inline image 1]

Also, for anyone unclear about what a Monome is, I made one in Javascript
with the Web Audio API - which means it only works in Chrome, but have a
play if you can slash want.
http://charlottegore.com/monome/#!song=Aw18ZXAjN8MUhdlvK9pWfbrGBREQAA==:Aw18ZVgjN8MdOylvajWMu1X6cQA=
:)On Tue, Jul 16, 2013 at 11:02 PM, Charlotte Gore conspiracygore@gmail.comwrote:

Very cool!! That should work well

On Tue, Jul 16, 2013 at 10:07 PM, Bob Clough parag0n@ivixor.net wrote:

Video:

https://plus.google.com/u/0/114187442952096078228/posts/4SFaY6JsuET

On 16 July 2013 22:04, Bob Clough parag0n@ivixor.net wrote:

The glass tiles and neoprene strip arrived, been experimenting with them
tonight:

[image: Inline images 1]

Looks like this is going to work awesomely :smiley:

On 15 July 2013 21:21, Charlotte Gore conspiracygore@gmail.com wrote:

Wiring this thing up is going to be truly evil. Made an 8x8 button
matrix and an 8x8 LED matrix today. Tomorrow I’ll add the rest of the
circuit and start coding. Fun times!

https://lh6.googleusercontent.com/-lPZOzHEah8I/UeRZIEA5jrI/AAAAAAAAANY/FTs4fWv4DbI/s1600/photo+(2).jpg


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Wiring this thing up is going to be truly evil.

On this note, my current wiring idea is to run a 4 conductor rainbow cable
to each button, 2 for the switch and 2 for the LEDs.

The other ends would be crimped with pin-header style connector, and go
onto a little matrix wiring board:

[image: Inline images 1]

One board for the LEDs, one for the button contacts. Should simplify the
wiring a little, and avoid us ending up with a massive ratsnest of wiring!

If we’re happy with this I’ll get the matrix boards ordered, should be able
to get a ~10 day turnaround on them, giving us just under 2 weeks to finish
wiring things up!

That’s a great idea! Wonder if it’s worth getting 3 while we’re there
rather than just two so that we have the option of multiple LEDs for each
button?On Wed, Jul 17, 2013 at 1:54 PM, Bob Clough parag0n@ivixor.net wrote:

On 15 July 2013 21:21, Charlotte Gore conspiracygore@gmail.com wrote:

Wiring this thing up is going to be truly evil.

On this note, my current wiring idea is to run a 4 conductor rainbow cable
to each button, 2 for the switch and 2 for the LEDs.

The other ends would be crimped with pin-header style connector, and go
onto a little matrix wiring board:

[image: Inline images 1]

One board for the LEDs, one for the button contacts. Should simplify the
wiring a little, and avoid us ending up with a massive ratsnest of wiring!

If we’re happy with this I’ll get the matrix boards ordered, should be
able to get a ~10 day turnaround on them, giving us just under 2 weeks to
finish wiring things up!


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I was planning on getting 3 anyway, always a good idea to have one board
extra :)On 17 July 2013 14:30, Charlotte Gore conspiracygore@gmail.com wrote:

That’s a great idea! Wonder if it’s worth getting 3 while we’re there
rather than just two so that we have the option of multiple LEDs for each
button?

On Wed, Jul 17, 2013 at 1:54 PM, Bob Clough parag0n@ivixor.net wrote:

On 15 July 2013 21:21, Charlotte Gore conspiracygore@gmail.com wrote:

Wiring this thing up is going to be truly evil.

On this note, my current wiring idea is to run a 4 conductor rainbow
cable to each button, 2 for the switch and 2 for the LEDs.

The other ends would be crimped with pin-header style connector, and go
onto a little matrix wiring board:

[image: Inline images 1]

One board for the LEDs, one for the button contacts. Should simplify the
wiring a little, and avoid us ending up with a massive ratsnest of wiring!

If we’re happy with this I’ll get the matrix boards ordered, should be
able to get a ~10 day turnaround on them, giving us just under 2 weeks to
finish wiring things up!


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I might be able to make one of those boards using the stuff we have in the
space. I made a double sided pcb recently

AlexOn 17 Jul 2013 14:33, “Bob Clough” parag0n@ivixor.net wrote:

I was planning on getting 3 anyway, always a good idea to have one board
extra :slight_smile:

On 17 July 2013 14:30, Charlotte Gore conspiracygore@gmail.com wrote:

That’s a great idea! Wonder if it’s worth getting 3 while we’re there
rather than just two so that we have the option of multiple LEDs for each
button?

On Wed, Jul 17, 2013 at 1:54 PM, Bob Clough parag0n@ivixor.net wrote:

On 15 July 2013 21:21, Charlotte Gore conspiracygore@gmail.com wrote:

Wiring this thing up is going to be truly evil.

On this note, my current wiring idea is to run a 4 conductor rainbow
cable to each button, 2 for the switch and 2 for the LEDs.

The other ends would be crimped with pin-header style connector, and go
onto a little matrix wiring board:

[image: Inline images 1]

One board for the LEDs, one for the button contacts. Should simplify
the wiring a little, and avoid us ending up with a massive ratsnest of
wiring!

If we’re happy with this I’ll get the matrix boards ordered, should be
able to get a ~10 day turnaround on them, giving us just under 2 weeks to
finish wiring things up!


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personally, I would not make branches in the track like that
as it used to cause issues when etching.

I tend to prefer to flow tracks through each connector.

For this design even I woudln’t bother teardropping these all.On 17 July 2013 13:54, Bob Clough parag0n@ivixor.net wrote:

On 15 July 2013 21:21, Charlotte Gore conspiracygore@gmail.com wrote:

Wiring this thing up is going to be truly evil.

On this note, my current wiring idea is to run a 4 conductor rainbow cable
to each button, 2 for the switch and 2 for the LEDs.

The other ends would be crimped with pin-header style connector, and go
onto a little matrix wiring board:

[image: Inline images 1]

One board for the LEDs, one for the button contacts. Should simplify the
wiring a little, and avoid us ending up with a massive ratsnest of wiring!

If we’re happy with this I’ll get the matrix boards ordered, should be
able to get a ~10 day turnaround on them, giving us just under 2 weeks to
finish wiring things up!


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Ben Dooks, http://www.fluff.org/ben/ bjdooks@googlemail.com

I’m currently tweaking the design a bit for PCB milling, as i can get them
made on a mill for £4 eachOn 17 July 2013 14:35, Ben Dooks bjdooks@googlemail.com wrote:

personally, I would not make branches in the track like that
as it used to cause issues when etching.

I tend to prefer to flow tracks through each connector.

For this design even I woudln’t bother teardropping these all.

On 17 July 2013 13:54, Bob Clough parag0n@ivixor.net wrote:

On 15 July 2013 21:21, Charlotte Gore conspiracygore@gmail.com wrote:

Wiring this thing up is going to be truly evil.

On this note, my current wiring idea is to run a 4 conductor rainbow
cable to each button, 2 for the switch and 2 for the LEDs.

The other ends would be crimped with pin-header style connector, and go
onto a little matrix wiring board:

[image: Inline images 1]

One board for the LEDs, one for the button contacts. Should simplify the
wiring a little, and avoid us ending up with a massive ratsnest of wiring!

If we’re happy with this I’ll get the matrix boards ordered, should be
able to get a ~10 day turnaround on them, giving us just under 2 weeks to
finish wiring things up!


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Ben Dooks, http://www.fluff.org/ben/ bjdooks@googlemail.com


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Redesigned for Milling - has vias for layer connections, as lack of plated
through-holes would make soldering pinheaders a pain in the Arse. Also
teardropped the vias and added more mounting points.

These will need a bit of wire soldering through each via, but thats easy
enough compared to trying to solder the top of a 2x8 pin header.

[image: Inline images 1]On 17 July 2013 14:50, Bob Clough parag0n@ivixor.net wrote:

I’m currently tweaking the design a bit for PCB milling, as i can get them
made on a mill for £4 each

On 17 July 2013 14:35, Ben Dooks bjdooks@googlemail.com wrote:

personally, I would not make branches in the track like that
as it used to cause issues when etching.

I tend to prefer to flow tracks through each connector.

For this design even I woudln’t bother teardropping these all.

On 17 July 2013 13:54, Bob Clough parag0n@ivixor.net wrote:

On 15 July 2013 21:21, Charlotte Gore conspiracygore@gmail.com wrote:

Wiring this thing up is going to be truly evil.

On this note, my current wiring idea is to run a 4 conductor rainbow
cable to each button, 2 for the switch and 2 for the LEDs.

The other ends would be crimped with pin-header style connector, and go
onto a little matrix wiring board:

[image: Inline images 1]

One board for the LEDs, one for the button contacts. Should simplify
the wiring a little, and avoid us ending up with a massive ratsnest of
wiring!

If we’re happy with this I’ll get the matrix boards ordered, should be
able to get a ~10 day turnaround on them, giving us just under 2 weeks to
finish wiring things up!


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Ben Dooks, http://www.fluff.org/ben/ bjdooks@googlemail.com


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I’ve started a project blog on the hacman site at:
http://hacman.org.uk/tag/mmmmidimmmmf/

Note the newest post, awesomes!On 17 July 2013 15:16, Bob Clough parag0n@ivixor.net wrote:

Redesigned for Milling - has vias for layer connections, as lack of plated
through-holes would make soldering pinheaders a pain in the Arse. Also
teardropped the vias and added more mounting points.

These will need a bit of wire soldering through each via, but thats easy
enough compared to trying to solder the top of a 2x8 pin header.

[image: Inline images 1]

On 17 July 2013 14:50, Bob Clough parag0n@ivixor.net wrote:

I’m currently tweaking the design a bit for PCB milling, as i can get
them made on a mill for £4 each

On 17 July 2013 14:35, Ben Dooks bjdooks@googlemail.com wrote:

personally, I would not make branches in the track like that
as it used to cause issues when etching.

I tend to prefer to flow tracks through each connector.

For this design even I woudln’t bother teardropping these all.

On 17 July 2013 13:54, Bob Clough parag0n@ivixor.net wrote:

On 15 July 2013 21:21, Charlotte Gore conspiracygore@gmail.com wrote:

Wiring this thing up is going to be truly evil.

On this note, my current wiring idea is to run a 4 conductor rainbow
cable to each button, 2 for the switch and 2 for the LEDs.

The other ends would be crimped with pin-header style connector, and go
onto a little matrix wiring board:

[image: Inline images 1]

One board for the LEDs, one for the button contacts. Should simplify
the wiring a little, and avoid us ending up with a massive ratsnest of
wiring!

If we’re happy with this I’ll get the matrix boards ordered, should be
able to get a ~10 day turnaround on them, giving us just under 2 weeks to
finish wiring things up!


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Ben Dooks, http://www.fluff.org/ben/ bjdooks@googlemail.com


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A few delays on this, but I’ve now got physical stuff working - the lights
and buttons, so that’s the bit I’m not familiar with done. You can toggle
individual lights on and off, a bar sweeps across the display and when the
bar meets an ‘on’ note, that note flashes. So… we only need one LED per
button after all.

All that’s missing now is outputting MIDI data, then we need something to
take that MIDI signal. Worst comes to the worst I can just take a laptop
with a synth application on it. Not sure I can get away with three SIDs on
one circuit without getting a proper PCB made up, so I might deal with
multiple notes using an old C64 technique - rapidly cycling through the
notes. Very chiptune.

Next update once I have MIDI out working and it’s making noise. :slight_smile:

COn Friday, 19 July 2013 15:47:48 UTC+1, parag0n wrote:

I’ve started a project blog on the hacman site at:
http://hacman.org.uk/tag/mmmmidimmmmf/

Note the newest post, awesomes!

Cool!

I had an idea if we decide to do a second colour to avoid some wiring -
attach a red LED in the opposite direction to the white!

We’d need to disable the driver chip and have a second one for driving the
matrix backwards, but it’d look pretty cool and should work!

Thoughts?On 22 July 2013 18:39, Charlotte Gore conspiracygore@gmail.com wrote:

A few delays on this, but I’ve now got physical stuff working - the lights
and buttons, so that’s the bit I’m not familiar with done. You can toggle
individual lights on and off, a bar sweeps across the display and when the
bar meets an ‘on’ note, that note flashes. So… we only need one LED per
button after all.

All that’s missing now is outputting MIDI data, then we need something to
take that MIDI signal. Worst comes to the worst I can just take a laptop
with a synth application on it. Not sure I can get away with three SIDs on
one circuit without getting a proper PCB made up, so I might deal with
multiple notes using an old C64 technique - rapidly cycling through the
notes. Very chiptune.

Next update once I have MIDI out working and it’s making noise. :slight_smile:

C

On Friday, 19 July 2013 15:47:48 UTC+1, parag0n wrote:

I’ve started a project blog on the hacman site at:
http://hacman.org.uk/tag/**mmmmidimmmmf/http://hacman.org.uk/tag/mmmmidimmmmf/

Note the newest post, awesomes!


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Hi,
I think I can finally come back in tomorrow :slight_smile: If you want LEDs
then I still have a mountain or two of RGB 5mm ones (CC and CA). I also
have a lot (600) of WS2801 LEDs on strands, but these are for another
project, so I would need them back afterwards.

Ta,
GeorgeOn 23 July 2013 15:41, Bob Clough parag0n@ivixor.net wrote:

Cool!

I had an idea if we decide to do a second colour to avoid some wiring -
attach a red LED in the opposite direction to the white!

We’d need to disable the driver chip and have a second one for driving the
matrix backwards, but it’d look pretty cool and should work!

Thoughts?

On 22 July 2013 18:39, Charlotte Gore conspiracygore@gmail.com wrote:

A few delays on this, but I’ve now got physical stuff working - the
lights and buttons, so that’s the bit I’m not familiar with done. You can
toggle individual lights on and off, a bar sweeps across the display and
when the bar meets an ‘on’ note, that note flashes. So… we only need one
LED per button after all.

All that’s missing now is outputting MIDI data, then we need something to
take that MIDI signal. Worst comes to the worst I can just take a laptop
with a synth application on it. Not sure I can get away with three SIDs on
one circuit without getting a proper PCB made up, so I might deal with
multiple notes using an old C64 technique - rapidly cycling through the
notes. Very chiptune.

Next update once I have MIDI out working and it’s making noise. :slight_smile:

C

On Friday, 19 July 2013 15:47:48 UTC+1, parag0n wrote:

I’ve started a project blog on the hacman site at:
http://hacman.org.uk/tag/**mmmmidimmmmf/http://hacman.org.uk/tag/mmmmidimmmmf/

Note the newest post, awesomes!


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We’ve spent the weekend wiring the MegaMonome (yeah, it has an easier to
say name now) up, and now have the full LED matrix fitted and working, plus
all the wiring in place for the button matrix.

If anyone fancies wiring up another matrix PCB, or adding contacts to some
buttons, give me a shout, the last lot took a while!

Will be working on it Tonight, Wednesday evening and probably Thursday too.

Ta,
BobOn 11 July 2013 11:50, Bob Clough parag0n@ivixor.net wrote:

MakerFaire Project!

On Saturday Jim, Charlotte and I were talking about how much cool MIDI
stuff people have made in the space, and lamenting about how it is all so
normal-human-sized.

The idea of making a massive Monome came up. Of course, as this is the
best idea EVER, we have to do it.

We have a month. Easy.

I have put together a basic plan for scale. The person is a child or
small human, the thing itself will be about 1m x 1m!

[image: Inline images 1]

I can drop in tonight for a bit

AlexOn 5 Aug 2013 11:33, “Bob Clough” parag0n@ivixor.net wrote:

We’ve spent the weekend wiring the MegaMonome (yeah, it has an easier to
say name now) up, and now have the full LED matrix fitted and working, plus
all the wiring in place for the button matrix.

If anyone fancies wiring up another matrix PCB, or adding contacts to some
buttons, give me a shout, the last lot took a while!

Will be working on it Tonight, Wednesday evening and probably Thursday
too.

Ta,
Bob

On 11 July 2013 11:50, Bob Clough parag0n@ivixor.net wrote:

MakerFaire Project!

On Saturday Jim, Charlotte and I were talking about how much cool MIDI
stuff people have made in the space, and lamenting about how it is all so
normal-human-sized.

The idea of making a massive Monome came up. Of course, as this is the
best idea EVER, we have to do it.

We have a month. Easy.

I have put together a basic plan for scale. The person is a child or
small human, the thing itself will be about 1m x 1m!

[image: Inline images 1]


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