sneakthief

Zossen: ich meinte vier 4xDin4 Platinen. Ich habe einige komische Projekte aufgebaut, die SMD PIC18f Chips benutzen und solche mini-DIN4 würde natürlich super zusammenpassen.

Ich würde gern 4 bestellen!

This is really, really great. I'll test it out with my Yamaha DTX-Multi 12 percussion and Virus Snow after I get an OTG cable.

I've also had good experiences with Seeedstudio. They did an excellent job on some complicated SMD boards.

One more thing: I highly, highly recommend using Kester 331 solder which uses polyethylene glycol instead of rosin as a flux. Synth developers such as Paul Schreiber (MOTM) and John Blacet swear by it as it is believed to be much less toxic. However, since it's an water-based acid flux, you need to wash your board after with distilled water within a couple of hours so the acid doesn't eat the board. It's also to be avoided around pots and switches which it can damage. This is some 63/37 that I bought recently: http://mouser.com/Search/ProductDetail.aspx?R=24-6337-6417virtualkey53300000virtualkey533-24-6337-6417

I got bronchitis last year for 6 weeks and all evidence points to solder fumes. To be very frank, it's going to take me a while longer to recover. I've read that 1/4 of electronics workers in the UK develop chronic bronchitis - they call it "colophony (rosin) lung" http://en.wikipedia.org/wiki/Occupational_asthma#Occupations_at_risk The expensive fume-extractors use HEPA filters, similar to what I suggested, eg. http://www.rapidonline.com/tools-equipment/oki-solder-fume-extraction-systems-525451

20 years of soldering has taken its toll on me and I had to install some proper ventilation. I highly disagree with Hawkeye's "solution" because those filters simply don't handle any microparticles. When rosin-based flux is heated, it releases formaldehyde (among other nasty things) which can't really be removed by this kind of carbon filter. This is what I used - 220V bathroom fan (very quiet) for 15 euro: http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=300540214048&ssPageName=ADME:X:DERP:DE:1123 Then I paid another 10 euro for duct tubes. The ducts go straight out my window. If you don't have a window, then put on a HEPA filter on the tubes. Find a cheap one for a vacuum cleaner.

Use these 2 cheap chips to drive AOUT cable-lengths longer than 30cm: www.ucapps.de/mbhp/line_drivers.pdf

Yes, we can start the local chapter of the MIDIbox Armee Front :D

I'm doing a Mouser order this week - do you want me to buy this one for you? http://de.mouser.com/ProductDetail/3M-Electronic-Solutions-Division/SD-RSMT-2-MQ/?qs=sGAEpiMZZMuJakaoiLiBplDeQSW3avr%252bjCB3FYuNrDg%3d It looks like the correct one. You can pick it up from me in Friedrichshain.

If you want a cheap and easy way to control this over midi, check out the ACX Quantizer which also takes the cv input and sends it to a midi-out: http://acxsynth.com/quantizer/quantizerfr.htm

A couple of related thoughts: - The SSM2164 is discontinued, however Coolaudio now makes an identical version called the V2164. - The SSM2164 is very easy to destroy with improper voltage input if you don't take the proper precautions: http://electronic-sea.net/SSM2164.html

Novski: I don't have any schematics for that - it's a beta unit that TK sent me. I'm sure it will be published quite soon.

GP button = General Purpose button

Sorry if this is an obvious question, but do you have +/-12V? You only mention +12V (and not -12V) and I can only make out 2 yellow wires going into J3. J3: Analog power in (+12V/GND/-12V) http://www.midibox.org/dokuwiki/aout_ng

Here's another version from the US for $34.95: http://moderndevice.com/product/fluxamasynth-shield/ More info: http://electro-music.com/forum/topic-61315.html

Well that's certainly a good way to approach visual feedback on the sequencer!

novski: did you see this? http://www.ucapps.de/mbhp/mbhp_lcd_ssd1306_alt_port__stm32f4.pdf ...J5/J10B? static u8 lcd_alt_pinning = 0; // alternative LCD pinning (e.g. for MIDIbox CV which accesses a CLCD at J15, and SSD1306 displays at J5/J28 (STM32F4: J5/J10B)) http://svnmios.midibox.org/filedetails.php?repname=svn.mios32&path=%2Ftrunk%2Fmodules%2Fapp_lcd%2Funiversal%2Fapp_lcd.c&rev=1937

Omg you're recommending encoders based on the fact they were used in the Yamaha A3000? You realize that those were the most notorious for going bad, mainly due to oxidation? Edit: More info... http://todbot.com/a3k/knobs/ http://www.gearslutz.com/board/electronic-music-instruments-electronic-music-production/420780-knob-replacement-yamaha-a3000-korg-kaoss-pad-3-a.html http://www.ex5tech.com/ex5ubb_cgi/ultimatebb.cgi?ubb=get_topic&f=24&t=000047

The beta checked out fine here. There was only one correction that I was advised of in addition to the footprint of the SD-Card that was being changed. The last update has been completed by Smash and it's on its way to be fabricated:

TK - For the sequencer, would it make sense to blink one of the encoder-ring LED's as a step-chaser that follows the pattern, like in this video?

Works perfect here with TortoiseSVN on Windows 8.1: - I have it integrated into my shell, so when I right-click the target directory on my computer, I then select "TortoiseSVN" then "Export". - I use the same URL TK gave - svn://svnmios.midibox.org/mios32 - then click "OK" (Edit: Just tried and Checkout works too)

MIDIbox Seq and a bunch of GM modules being controlled by the LRE8x2 boards:

Lamouette: mon gars - calme toi les nerfs :P :D It's just some rotary encoders and LED's. As the man says, check out his wiki: http://www.midibox.org/dokuwiki/doku.php?id=mb-lre8x2cs_rev4.6

0V min, and approximately 10V max is fine. Keytracking and Pitch CV are the same input. 1. When you have the filter self-oscillating, you can use it as a 1V/Oct. oscillator, hence "Pitch CV". 2. Keytracking on a filter is used for 2 main purposes: and you play a note from an oscillators that go into the filter, the keytracking opens the filters proportional to the pitch. You do this so you get a consistent amount of harmonics over the range of the oscillator, ie. higher notes need the filter to be open more, lower notes need the filter to be open less. The keytracking is also very important musically when the resonance is higher so that the frequency of the resonance follow the frequency of the oscillator. This makes them both in tune with each other :)