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Elektruck

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  1. Elektruck

    MB SeqV4

    Hi, I have a very complete MB SeqV4 for sale. It has an onboard 230V psu, +/-12V plus 5V, Aout module. 8 CV/Gates on the back and the same available on a TPD module with 2,5m extendable cable. Attached to the TPD a 8x clock/start/stop module. 2 midi in, 4 midi out, din-sync out. It's in full working order, but, the case is a bit damaged, and I glued it together. Now it won't open anymore...so you can leave it as it is, or fix a new housing. The right LCD has a little spot on it, see pictures, but it's as long as I can remember. It's not getting worse or blocking any lettering... All with big jacks I sell it because I build myself a SeqV4+ witch I'm happy with. 550,- euro
  2. Hi Andy, thanks for your answer. A bit sad it went like that, but not everything can be a winner! I'll stick to my LPC for the SD card/ethernet issue. If I ever turn this beast into a finished piece of hardware I'll let it know! Cheers, Roel
  3. Hi Latigid and others, It's really been a long time since anyone mentioned something about MBCV V2, but I'm really curious if there was some progress in your alternative version. Your build looks really good but we never saw the finished project, like with all MBCV V2's........ Last month I powered on my own build and I was again really impressed by all possibilities. It took a while to connect it to my Ipad/lemur but I succeeded and I compiled new MBCV V2 project.h files from the mios32 github for LPC1769 and STM32F4. My own test version is on a LPC1769 but I want to make a new one on a STM32F4 core. But I can't get my ethernet module and SC card to work simultaneously. I red that Rowan and Sneakthief had the same problems , see here When I upload midibox NG to my core the ethernet card and Sd card do work simultaneously. You are also using a STM32F4 for your mbcv v2.01, did you get it to work with ethernet and SD card at the same time? Hope to get some answers after all these years....cheers, Roel
  4. Hi, thanks for your answer. I checked the network connections a hundred times, without luck, but in the end I got both Seq/BLM and CV2 working bi-directional with my Lemur on the Ipad. I'm not sure what did the trick, I think setting all port connections to port 8000. First I had my remote port set on 8001. I also think it has something to do with confidence, and your answer helped with that! After your answer I installed Lemur editor on my PC and made a connection with the Ipad, that worked, than with MIOS Studio, that worked and confidence was growing, then Ipad with the Lemur BLM to my SeqV4, with settings like Here and Here That also worked, except my BLM on Lemur hangs or resets quite often and returns to Grid mode. After that I tried the MBCV2 with the same settings and it just worked... I'm quite exciting to play with this beats again. I builded it years ago and didn't finish it cause the development seemed to end and I was busy with other stuff. But this machine seems to be a really crazy powerfull CV modulator box!
  5. Hi, Are there still some people here using Lemur with OSC and a midibox? I have a SeqV4 and a Midibox CV V2 both on a LPC1769 core, and an old Ipad v1 with Lemur and a Galaxy Tab android tablet with Lemur. In the past, years ago, I had a bi-directional set-up with my Ipad and the midibox CV V2. Midibox connected to a wifi router and Ipad also connected to the router, same setup with the Lemur BLM and my seqV4 and both setups worked as far as I can remember. This weekend I tried both setups for hours without any luck. Maybe it's not possible anymore, I only read post about this wonderful usage from years ago.... So anyone still using Lemur like this? Cheers, Roel
  6. Thank you very much!!! I did this years ago, multiple times. Now a friend asked for help with his LPC1769 but I didn't succeed anymore, until I found your post! Merci bien!
  7. @lp1977 Thanks, it has the clocks indeed, works perfectly! @Rio Thanks for pointing me in the right direction, for now it works, but for future stuff I know where to look now. I thought something like that but sometimes it's just to much of a hassle to get everything working correctly...
  8. Hi Steve, thanks for showing this, that looks very promising! I wanted to compile the code, but I get an error: c:\Users\Samsung\dwhelper\Downloads\mios32-master\mios32-master\apps\sequencers\midibox_seq_v4>make rm -f project.hex project_build/core/seq_cv.o: In function `SEQ_CV_IfSet': c:\Users\Samsung\dwhelper\Downloads\mios32-master\mios32-master\apps\sequencers\midibox_seq_v4/core/seq_cv.c:157: undefined reference to `AOUT_IF_MaxChannelsGet' collect2.exe: error: ld returned 1 exit status make: *** [project_build/project.elf] Error 1 But I'm not in a hurry so I can wait for the next release!
  9. Hi, thanks for the answer. I have a Fluke meter, but it's an older one and it doesn't seem to have this high-resolution function. My latest 'china' one did have the function, but it fails on resistance lately. Buying 0.1% was an option if I knew this before but I wanted to finish the modules today. I just soldered the 49.9k in and I think its good :) I just checked the new CV and gate modules by swapping them with the 'older' ones and they seem to do it on all outputs, so that's great. But if I put everything together I can't get CV2 working. I changed the HW4 file, so the clocks and trigger modules are corresponding with the right shift registers but I don't see an option for activating CV2, I only see this: CV_GATE_SR1 10 The second 'CV2' module seems to spit out a copy of CV1, and the second gate modules seems to do nothing. Am I missing something? edit: stupid of me, but I chained CV2 from 19 of CV1, not 19a. Now I did chain it from 19a, and CV2 is working ! I activated the corresponding gates by adding; CV_GATE_SR2 11 in the HW4 file
  10. Hi, I'm about to finish my second A1 CV expander module. So I'll have 8 bipolar (-5 to 5V) outputs, and 8 unipolar outputs (0-10V) I have 5 digital multimeters laying around, 4 won't give 2 decimals at 49.9K ohm, and the fifth gives a bad output at measuring resistance. So I cannot mach the resistors as described. But for the unipolar outputs I need to mach only 2 resistors instead of 3, and all the resistors are 49.9K. So I think it's good enough, what do you think?! And do I need to do something special for getting output 9 to 16 working, like chaining from CV1 19a? or jumper to rc2 on the DAC board? Thanx and a good 2021 to everyone!
  11. Hi all, I think it has been requested before but I'm not sure... I would really like to divide the clock outputs more. Now the clock can get really fast, 384 ppq, and that's great! but the lowest clock is 1 ppq. And that's still quite fast. I would like to use a clock to reset something every 64th step. But for that I have to divide the clock output through an external clock divider. It would be great to get it from the sequencer itself. Now I use a dedicated track for that but I still have 6 unused clock outputs....I hope it's possible. Cheers!
  12. Hi all, finally started playing with this wonderfull device and it's a joy! I have one simple question, can I change the velocity level of the metronome notes? I made myself a great digital piano with a studiologic sl880 keyboard and a samplerbox with Grand Piano samples. It almost works great...with highest velocity my notes get distorted....I would like to have the metronome much more quiet.
  13. Hi, I just finished my LoopA with the new lightshields I got to beta test. The machine looks fantastic and was a really nice build, following the supurb video instructions! The (no) light bleeding is far better than my seqv4+, without the lightshields. I'll definitely install them also in my sequencer, although that means I have to desolder all switches, and resolder them again with the shields. The picture with all lights on has the shields only on the bottom row, so you can see the difference, without the caps... Cheers!
  14. Ok Ok, that sounds good and I'll go the commercial way! I was just a bit dissapointed when I replaced the caps on my sequencer and still suffered from light bleeding through. But I've all confidence in the professional midishop stuff, so I'll wait for the official ones. Thanx again for the effort
  15. Can I have the stl files so I can print these myself? Cheers, Roel
  16. Yess, me too! A while ago I bought a set of keycaps from Antichambre for my LoopA and I regret I didn't order them for the sequencer, these were the last spares...and I love them. Would be great if we could order them from the webshop.
  17. Hi, it's been a while, but I'm still busy with this project. Till now I just used ableton to trigger the solenoinds through the midio128V3 box. But now I want to play them directly from the midifile on the midio128box. I don't know where to put the piece of code bruno gave me. I copied it in the app.c file and that works for the midi input of the midio128box. But, as Bruno said, it doen't work for the midifiles on the SD Card. I tried different things with routing, but I can't seem to route the midi events from the midifile to the midi input of the midio128box. So I looked further in the "src" folder of the Midio128V3 app, that's where the app.c file is, and there are lots of other files. I copied it to seq.c, It complise but with no result. And I copied it to the mid_file.c, but that I can't compile cause "midi_package" is undeclared in this function. I hope someone can give me some extra hints cause now I'm stuck again. Thanx!
  18. Hi Thorsten, Thanx very much for the fast reply, I'm sorry I'm not that fast.... But I think the Hz/V calibration works like it should now, although you really need a unipolar CV output. And I didn't notice any difference in the calibration procedure but maybe you just changed the code and not the procedure?!.... The renaming (Aout > CV 1t/m4) and the GP7 uni/bi polardisplay button is indeed more convenient and looking good! I didn't remove the resistors yet, but I measured the following after the Hz/V calibration: C2 on the sequencer gave me -1V, E2=0V, C3=3V, E3=5V . If I add 5 volt to this (changing from bipolar to unipolar) C2=4V, E2=5V and C3=8V and that's is exactly what it should be so that's why I think the calibration is correct. It is so confusing cause the CV input range of the ms20 is from 0 to 8 Volts, so the ms20 starts playing on E2/0V, and the highest reachable note in bipolar mode is only 1 octave higher E3/5V, and within this octave the ms20 jumps through 4 octaves. That's the difference between lineair and exponential, I was never good at this stuff, I hope you people understand me... Thanks again for all the help and the new release, looks very promissing, 4 CV modules is superb and track labeling and all other stuff is just great.
  19. I will!, and I'm not on a hurry so if it isn't tomorrow, no problemo, thanks anyway!
  20. After calibration I got as close as 0.998V 1,997V....9,999V, so that seems working reallly good. I didn't check the manual, but I've been using my ms-20 for over 20 years, and have been using it with different midi2CV converters and always needed to select V/Hz instead of V/Oct. I also used it on my 'old' SeqV4 with build in Aout board and that always worked good with the Hz/V setting in the CV configuration. There is a workaround for using V/Oct on a Ms-20. You put the bi-polar CV signal into the Ext Freq input, and turn the corresponding pot to around 9 'o clock. But it's quite hard to get a good stable tuning over multiple octaves this way. I'll try to remove the resistor and make a unipolar output and see what that does. If it's only offsetting the CV value I can't imagine that it will scale alright, but I'll try and let you know
  21. Hi, last week I finished my eurorack modules and they seem to work fine now. At first they (clocks and gates) started normal but after a few seconds they started to add randomness. In the end I found out I hadn't soldered the db25 connector to the board,.. stupid! The calibration feature works really nice and handy!!! I managed to get a good tracking over at least 7 octaves on my sh101. But.... When I switch to Hz/Volt, for controlling my korg ms-20 I get a really strange output, I get the complete range of 4 octaves under 1 octave of my keyboard. Am I missing something, does the Hz/V has its own calibration, or isn't Hz/V implemented yet?!
  22. Wow, looks beautiful! I just finished the eurorackmodules, will start on LoopA one of these days
  23. Hi Bruno, Thank you very much! Altough this is quite "abracadabra" to me, I managed to copy your example in the app.c file of the MIDIO128_v3 folder and after some troubleshooting it recompiled, and it works! I can play C3's with different velocities and they're played by DOUTpin 0,1 and 2. I'll manage to expand this further to my needs. Only thing I'm a bit worried about, is that I just add a bit of code to the MIDIO128 app, and that this piece of code will "struggle" with the original app. Or shouln't this be a problem?! Thanks anyway, I'm ways further to my goal now. HERE is an early vid of my experiments
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