//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__ R80 - Kick R75 - Snare R2 - Clap/Rim R69 - Cowbell R68 - Conga R63 - Hats R62 - Ride/Crash R60 - Toms __S-Trig to V-Trig converter__ 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 __V-Trig to S-Trig (another)__ 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) ==== To do: ==== * MBFM drums (duh)\\ * Jamaroonies\\ * 505/707 as trigger source\\ * LED matrix\\