Rowan

I've been thinking a bit about case options for this project as I put together a MBCV2 tests system over the weekend. My test bed consists of a STM32F4 core, AOUT_NG, 4xDOUT, LER8x2, SCS, MIDI I/O and Line Driver. I've mounted the AOUT and DOUT in my Eurorack case and connected these to the Core/CS with the line driver. My use case is as a 8 CV out modulation generator. I propose that your front panel should be 84HP wide/3U , the reason being is that A) it will fit in a standard eurorack case. B) If someone wants build it stand alone or rack mountable all they need to get is a pair TipTop Audio Z-rails and Z-ears ( http://www.tiptopaudio.com/zeartbl.php ) and mount the panel in it. These are reasonably priced and readily available world wide. Of course you would need some way to enclose the rear/back but this would be pretty straight forward to achieve. The 84HP panel could actually provide a really good mechanical standard front panel for the MBHP. Imaging a MBSEQ Wilba CS front panel that was this size? Easy ordering and very easy mounting, no more endless waiting lists for case runs. And the added bonus that it can mounted in a Eurorack.

Haha... I like that, always pushing it's way to the front of the line.

This would be a nice little enhancement. It reminds me of mute groups on my old Akai S series sampler. Thinking about this further the idea could also be applied to whole tracks.... Lets call the feature "Choke" (after choking a cymbal) while I muse about the possibilities. Firstly you you would have 16 Choke groups and each group having for example 16 slots (these numbers are hypothetical). Only one slot (note/channel/track) in a choke group can play at a time, the priority is determined by how high up the list Slot is. I've used the term Slot here as it needs to be very loose, you might want to assign a track to a slot, maybe an output, maybe a channel, maybe a layer, maybe a CC? This could be extended where by the 16 choke groups could also have their own master choke group so only one group could play depending on its priority setting. Other really cool things you could do is to rearrange the slot priority order in real time a-la the track direction play back feature or with a CC or something else..... This would be very cool.

It should work, I'm using the same kind of thing on my MBSEQ. Have a look at this thread as it may help.

I on a Mac and use a PICkit 3 and the Microchip Mac Dev tools to program PICs. It works great.

Cool, Thanks. That clears that up then.

Hopefully TK can give a diffinitive answer to this question.... If a MIDI IO module is connected to a STM32F4 core via J11E what is the voltage level of the MIDI out signal on the MIDI IO module? The discription of the jumpers on the PCB on the STM32F4 core page indicates that it's 3v. Is this correct or is the MIDI Out signal 5v?

I've ordered 2 of these, I'll report back once they arrive and I've tested them.

I agree that this would be a useful feature.

Great. I expected that it would take a lot of effort implement such a complex feature. I'm on the wait list for the next batch on NV's euro panel. I will check out the software Klee you linked to so I can get a better idea of what it's capable of.

I've just spent some time reading up on the Klee sequencer as I'm thinking about building one. It dawned on my while reading some of the documentation that the MBSEQ could be enhanced to have a Klee Track type. The way I understand the key difference is that it has multipul "play heads" and the output voltage is the is the sum of the voltages of the steps the various play heads are at. This PDF has a much better explanation of the way it works. http://www.modular.fonik.de/klee2/know_the_klee_draft3_203.pdf It seems that the Klee is an almost mythical beast that exists in legend so it would be nice if it could be delivered to a wider audienc.

if that's including the front and rear panel that's a reasonable price.

Looks good!. I'm very envious of you having direct access to the STM32F4 core's on board USB port, it's one of my bugbears that there is no easy way of getting access to it in my case. How much did the case cost to have made?

I've just done a quick test and running gate inputs from my modular in to a DIN module works perfectly (as I expected it would).

I'd like to be able to add a small number of extra DIN inputs to my SEQ with the intention of sending gate signals from my modular into the SEQ and convert them to MIDI notes while I can then send out to MIDI gear connected to the SEQ. My usecase is taking gate signals from a Mutable Instruments Grids (+5V, 1ms), convert these to MIDI note data and then send these off to trigger my Yocto 808. Over the weekend I plan on putting together a standalone Gate to Midi converter using the MBNG, DIN module and STM32F4 core to experiment but this seems like overkill for a basic task. Is this possible?

I'm going to be ordering the button spacer in the next week or so. Is there anyone in the UK that also needs the spacer so we can split the shipping cost?

My case arrived today and buttons have been ordered. The spacer and Mouser BOM will be ordered in the next few days.

I think there is a little confusion here, tashikoma and electrodancer are talking about different BLM's. I guess electrodancer is taking about the 16x4 BLM which uses the din/dout chain where as tashikoma is talking about the 16x16+X BLM which connects via MIDI. Im also going to be building one of the 16x16+X from the recent group buy to connect to a STM32F4 core. At this stage I haven't found any specific documentation on how the BLM port should be connected but in my case I'm guessing it will chain off the end of the MIDI I/O board & appeare as MIDI I/O port 3. My configuration is: SMT32F4 core 1 X MIDI I/O board 1 X IIC MIDI board

Of course it should! We both know if it fits a eurorack the number of people interested in the project will increase by an order of magnitude.

Im sure you guys have already thought about this...... But, will this design be eurorack friendly? i.e. Fit in a 3U rack?

Sold.

I've got a bunch of parts that I want to sell for a MB6582. The lot includes most of the parts required to build a MB6582, the only "hard to find" parts missing are the PCBs and PT10 case. See below for a full list of whats included. Some of the part are: 4 x 8580 SID Chip, black screen printed front and rear panel, 15 x Encoders and 4x20 Blue LCD I'm looking for £150 (GBP) excluding postage for the lot. Payment by paypal only. I'll post worldwide, once a buyer is found I'll get a postage quote. The pictures show most of the parts include but not all, the list below is what the buyer will receive Part Included In Sale 15 x Soundwell 16mm 24PPR Dented Encoder 4 x 20MHz Crystal 1 x 7812 Voltage Regulator 1 x 7805 Votlage Regulator 50 x 13mm Tact Switch 8 x BC547 1 x BC337 5 x 74HC165 11 x 74HC595 9 x 8 Pin DIP Socket 15 x 16 Pin DIP Socket 1 x 40 Pin DIP Socket 4 x 1/4” Stereo Socket 2 x 5 Pin DIN Socket 1 x 8 Pin DIN Socket 56 x 1N1418 Diode 1 x 6N138 Optocoupler 2 x 2200uF 16V Electrolytic Cap 10 x 10uF 25V Electrolytic Cap 8 x 1uF 63V Electrolytic Cap 1 x 100uF 16V Electrolytic Cap 1 x 330nF Cap 40 x 100nF Cap 2 x 18F4685 PIC (I can burn the MIOS boot loader if needed) 4 x 8580 SID Chip 1 x 4x20 Blue LCD 2 x 10k trimmer 4 x Feedback Pot Knobs 1 x DB25 Expansion Port Socket 9 x 100mm 2.54mm Pitch 8 way cable 1 x Black Aluminium Front Panel with off white screen printing for Pactec PT-10 Case 1 x Black Aluminium Rear Panel with off white screen printing for Pactec PT-10 Case

Very, very nice TK. How many hours did the build take?

My package arrived today. Thanks!

Altitude, Check you PM's