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drumstuff [2006/08/29 07:42] – DrBunsendrumstuff [2016/06/13 13:00] (current) – psykhaze
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 +//FIXME Update thing out there//
  
 +A place to catalogue analogue drum experiments, clonings, mods, hacks, bends, MIDIbox integration, specialised drum sequencers, MBSEQ firmware, SID as drum machine, triggering, E-Drum heads etc etc etc.
 +
 +
 +==== Related pages on this wiki and ucapps.de : ====
 +
 +**[[midibox_seq|MIDIBox SEQ v2]]** - a simple control surface can be built with 16 LEDs/switches and one encoder (according to the SEQ Drum Mode tutorial below), and still have full access to this [[http://www.ucapps.de/midibox_seq.html|amazing sequencer engine]].  Up to 48 seperate MIDI drum note assignments x 16 steps.
 +
 +Can also take an [[aout_module|AOUT module]] for [[http://www.midibox.org/forum/index.php?topic=6192.msg44981#msg44981|up to four]] CVs outs.  The DOUTx4 expansion mentioned under MIDIO128 below could possibly be coded in.
 +
 +With added code, a LED matrix to display all drum patterns simultanously may also be possible, as in the [[trsequencer#sds6|Simmons SDS6]].  Moxi has already implemented a 4x16 button/LED matrix, and TK has indicated up 1024 may be possible (in MIOS, not necessarily in the SEQ).  [[http://www.ucapps.de/midibox_seq/mbseq_dout_v2_ledmatrix.pdf|4x16 LED matrix wiring]] - **PDF**.  Also see the [[http://www.sparkfun.com/commerce/categories.php|Sparkfun]] parts listed below.
 +
 +**[[midio128|MIDIO128]]** - up to 128 on/off signals and 128 input switches from one core.  Useful for a simple fixed velocity MIDI to trigger/gate converter, sequenced from other equipment or software.  A user adaption has added a [[how_to_use_midibox_cv_with_a_dout|DOUTx4 module]] for another 32 fixed velocity trigger outs.
 +
 +**[[midibox_cv_v1|MIDIBox CV]]** - 8 gates and 2 analog CVs per AOUT module. Could be adapted for velocity triggers?
 +
 +**[[trsequencer|TR Sequencer]]** - Discussion on the classic Roland TR-x0x drum sequencer user interface
 +
 +**[[dseq32|DSEQ32]]** - mess's 32 step 8 track drum sequencer
 +
 +
 +**[[http://www.ucapps.de/mios_download.html|MIOS Downloads]]** - Code examples for:\\
 +* 8 CV outputs with the MBHP_AOUT module\\
 +* button matrix of 8x8 = 64\\
 +* 64 CV INs and OUTs\\
 +* 64 pots, 128 buttons, 128 LEDs\\
 +* velocity buttons (e.g. for drumpads)\\
 +* MIDIBox SID - steal matrix code\\
 +* MIDIBox SEQ\\
 +
 +==== Forum topics: ====
 +
 +[[http://www.ucapps.de/midibox_seq_tutorial3.html|MIDIBox SEQ Drum Mode]]\\
 +[[http://www.midibox.org/forum/index.php?topic=5703.0|MIDIBoxSID as drum machine]] - sounds like 
 +[[http://www.midibox.org/midibox_sid/mbsid-d_demo2.mp3|this!]]\\
 +[[http://www.midibox.org/forum/index.php?topic=6331.0|Analog drum modules]] - cloning and triggering them - the thread that started it all\\
 +[[http://www.midibox.org/forum/index.php?topic=7036.msg46015|Moogah's 808/909 clone]]\\
 +[[http://www.midibox.org/forum/index.php?topic=5779.0|Beginner's 16 step SEQ project]]\\
 +[[http://www.midibox.org/forum/index.php?topic=2231.0|Alternative sequencer firmware]]\\
 +
 +[[http://www.midibox.org/forum/index.php?topic=6707.0|MB SEQ with button matrix?]]\\
 +[[http://www.midibox.org/forum/index.php?topic=4253.0|SEQ with 4x16 buttons and LEDs]]\\
 +[[http://www.midibox.org/forum/index.php?topic=6895.0|16x16 button matrix]]\\
 +[[http://www.midibox.org/forum/index.php?topic=2099.msg15872#msg15872|4x16 LED/button matrix]]\\
 +[[http://www.midibox.org/forum/index.php?topic=7087.0|using scan matrix together with led matrix?]] - Success!\\
 +[[http://www.midibox.org/forum/index.php?topic=6952.0|MB-SEQ LED-Matrix in Firmware aktivieren]] - auf Deutch or [[http://translate.google.com/translate?u=http%3A%2F%2Fwww.midibox.org%2Fforum%2Findex.php%3Ftopic%3D6952.0&langpair=de%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools|in Google English]]\\ 
 +[[http://www.midibox.org/forum/index.php?topic=2930.0|Diode matrix input]] - large matrix with MIDIO128\\
 +[[http://www.midibox.org/forum/index.php?topic=5626.0|80 LEDs from one CORE]]\\
 +
 +
 +==== Other resources ====
 +
 +[[http://en.wikipedia.org/wiki/CV/Gate#Gate|V-Trig, S-Trig and Gate]] - from Wikipedia\\
 +[[http://www.synthesizers.com/gates.html|Gates and Triggers, Mystery Solved]] - from synthesizers.com\\
 +[[http://m.bareille.free.fr/midi2pic/midi2pic.htm|PIC MIDI programming]] - getting started\\
 +[[http://www.tomwiltshire.co.uk/sdiy/index.html|VC LFO and ADSR on PIC 16s]] - cloning analogue LFO and ADSR with PICs.
 +
 +__ Drum pads and EDrums __
 +
 +[[http://www.electronicdrums.com/pads/pads2.htm|A good piezo pad design]]\\
 +[[http://edrum.for.free.fr/modules.php?name=Content&pa=list_pages_categories&cid=1|EDrum For Free]] - great DIY site, heaps of designs for pads, triggers, pedals, hats etc
 +
 +__ Yahoo Groups __
 +
 +[[http://launch.groups.yahoo.com/group/tr-707/|TR-707]] - Service manual, schematics, mods:  you'll need to join to access files.\\
 +[[http://launch.groups.yahoo.com/group/drummachine/|Drummachine]] - moderator approval to join\\
 +[[http://groups.yahoo.com/group/Roland_Drum_Machines/|Roland Drum Machines]]\\
 +[[http://groups.yahoo.com/group/rolandtr505/|rolandtr505]]\\
 +[[http://groups.yahoo.com/group/Simmons_Drums/?yguid=9150350|Simmons_Drums]] - schematics and service manuals galore\\
 +[[http://groups.yahoo.com/search?query=circuit+bending&submit=Search|Circuit Bending]] - just a list of search results
 +
 +==== Useful Parts ====
 +
 +__ RGB Matrix __
 +
 +[[http://www.sparkfun.com/commerce/categories.php|Sparkfun Electronics]] have an [[http://www.sparkfun.com/commerce/product_info.php?products_id=760|8x8 RGB LED Matrix]] with an SPI serial controller attached for $59.95.  Red/Green version $34.95, matrix only small $4.95 large $29.95.\\  The serial controller backpack contains a reprogrammable AVR ATMega8 microcontroller, which bumps up the value equation and opens a world of possibilities, such as LED sensors.
 +
 +__ 4x4 lighted key matrix __
 +
 +According to [[http://www.midibox.org/forum/index.php?topic=7116.msg46551|this forum thread]], [[http://www.sparkfun.com/commerce/categories.php|Sparkfun]] will also soon be offering "silicone illuminated buttons ... 4x4 arrays that will cost between $20 and $30 U.S ... with 5mm holes for our tri-color LEDs."
 +
 +__ High power shift register __
 +
 +[[http://www.sparkfun.com/commerce/product_info.php?products_id=734|Shift register 8 bit high power]] - serial in, 8 pins out at up to 50V/150mA each.  $1.95.  Sparkfun again :) This would be handy for triggering modules that expect more than +5V as from a DOUT.
 +
 +
 +
 +==== Schematics: ====
 +
 +[[http://elists.resynthesize.com/analogue-heaven/1996/06/200906/|S-Trig to V-Trig converter]] - also see below. 505/707 internal triggers are S-Trig.\\
 +[[http://www.retrosynth.com/docs/trigger/index.html|V-Trig to S-Trig converter]] - different one below\\
 +[[http://www.getlofi.com/?p=743|Simple switch/trigger with transistors]] - ground switch with NPN or +ve pulse with PNP.  The example given uses a PC parallel port and the [[http://www.mikmo.dk/cbsequencer.html|BendControl]] Win95 sequencer\\
 +[[http://www.deepchild.com/images/arista_schem.jpg|Arista Drum machine]]\\
 +[[http://www.matrixsynth.com/blog/media/misc/syntholliescans/|SynthOllie's scans]] - Boss PC-2 Percussion with noise generator mod, Boss handclap, Casio VL-1, clap, synbal, synclap, syntom II.\\
 +[[http://matrixsynth.blogspot.com/2006/06/more-scans-by-synth-ollie.html|Matrixsynth blog entry]] - where I got the link to synthollie and also a SynTom II and Cymbal II Zip file.\\
 +[[http://m.bareille.free.fr/synth.htm|Papareil Synth Labs]] - Coron Drum Synth clone schematics, also lots of other FX and synth modules, MIDI projects, etc.
 +
 +__Roland TR-505 8x trigger out mod__
 +
 +<code>R80 - Kick
 +R75 - Snare
 +R2  - Clap/Rim
 +R69 - Cowbell
 +R68 - Conga
 +R63 - Hats
 +R62 - Ride/Crash
 +R60 - Toms</code>
 +
 +__S-Trig to V-Trig converter__
 +
 +<code>This will produce a voltage
 +trigger in response to an
 +s-trigger out.  The trigger                 Off
 +voltage will be 0 or 9 volts.            ___o       ___________
 +Close the switch to use, open           /          | 9-volt    |
 +it to save the battery life.     |-----o    o---- +| battery   |-- ground
 +                 ________________|          On     |___________|
 +                 \               \
 +                 /               /
 +             10k \           10k \
 +                 /               /
 +                 |               |----------------------- to tip of jack
 +                 |               |                        sleeve to ground
 +                 |    100k       /
 +      ___________|___/\/\/\___|/
 +      |                       |\   2N3904 or equivalent
 +1   -|-  S-trigger              \
 +    _____     in                 |
 +2    |                          |
 +      |                         ---
 +      |                  ground  -
 +     ---  ground</code>
 +
 +__V-Trig to S-Trig (another)__
 +<code>The circuit that I have is very simple. One VMOS FET (something like the 
 +VN10KM). No power, nothing...
 +
 +it's something like:
 +
 +
 +                       S|-----------------o S-Trig
 +                       ---
 +                    G |   |
 +       trig o---------|   |
 +                      |___|
 + V-Trig.                | D
 +                        |
 +        gnd o------------------------------o gnd
 +
 +
 +where G, S, and D stand for Gate, Source and Drain - and I may have them 
 +mixed up, coz I'm doing this from a bad memory)</code>
 +
 +==== To do: ====
 +* MBFM drums (duh)\\
 +* Jamaroonies\\
 +* 505/707 as trigger source\\
 +* LED matrix\\