Hawkeye

Nope, should work. Can you go to the bootloader and set the LCD type again? It is explained here: http://www.ucapps.de/mios32_bootstrap_newbies.html Here is the relevant section for the SEQ: Example2: two HD44780 based 2x40 character LCDs are connected to your MIDIbox Enter: lcd_type CLCD lcd_num_x 2 lcd_num_y 1 lcd_width 40 lcd_height 2 store Many greets and good luck! Peter

As I've recently talked with Andy i might have some inside information, there should be news regarding the availability of PCBs still in 2017! :-) But, be aware, that it is a lot of work, and that also some special parts like OLEDs, Matias tactile switches and Alps-mount transparent switch caps are required and need sourcing, you would probably not be happy with "just" the PCBs, as these special parts can be hard to get, so: patience is a virtue (and i know, that sentence is quite often used around here :-)). Have a great weekend! Many greets, Peter

A sampler and instant replayer? Just sample with 44kHz and instantly play back with 43.2kHz? :-) Could be done with minimal hardware, as long as the a/d and d/a converters are decent. Many greets, Peter (edit: on a second thought, this needs some minimal timestretching code, otherwise there would be a buffer overrun, very soon! :-). Should be doable nevertheless! :-))

No, as you suspect, it could have never worked with the connection wrong. But, the display could have just failed at any time, or maybe there was some overvoltage input or electrostatic discharge at any point damaging the display controller. As you can really buy a test display for 3$ (16x2 or 20x2 is sufficient), i'd recommend to just do that, and that when you install it, you try to operate the core on a well known power supply, e.g. from your computer or a high-quality usb powerbank. I've also looked through the thread to see high-res photos of front and backside of the core (without the stm32f4 module installed) and did not find them (but maybe i did not search good enough) - so, if you already have them, please upload them, if not, you'd need to take photos directly from above the frontside and the backside of the core (not from an angle), so we could look at it, sometimes, solder points can go bad, even if you think they look good and that you have checked them. I know, these mysteries keep a lot of people here wondering, what is really wrong with the board, please be assured, that we'd love to see you solving the problem (and to find out what it was!) Many greets, Peter

+1, it might "just" be a soldering fault somewhere in that area - can you photograph the core front and back (deinstalled STM32F4 module) in high res and post it here? If you have access to an oscilloscope, you can check all data pins at the display, it should show activity on most lines arriving at the display during startup, interesting are the lines R/S, E and R/W... and if these work properly, check the data lines. I assume that you replaced the display "one last time"? Smaller HD44780 test screens are really cheap on ebay, the current one could still be burned from the previous core/wrong polarity? Many greets and good luck! Peter

Hm, a few questions: * what happens, if you turn the contrast pot? Do the solid blocks visible in the picture just disappear and fade to "nothing"? * which firmware do you have installed? can you install the newest MBSEQ from ucapps (and make sure you use the stm32f4 branch)? * do you "see" the core in MIOS studio and can you send commands to the just installed MBSEQ via the terminal? * did you build this second core as a completely new unit, aka have you also installed a new stm32f4 module or have you just plugged the old stm32f4 module to a newly built MIDIbox core? * if it is a new core, have you checked the orientation and proper installation of the 74hc595 and '541? Many greets and good luck! Peter

Thanks, Andy! :-) Yes, only scene switching and muting/unmuting is going on, both are synchronized to the measure, so you can a initiate a scene-switch or mute/unmute a bit ahead of time. Transposition (and a few other features like time stretching, which is the equivalent to the big SEQs clock divisor setting) is possible per clip, so for transposition, i just copied some clips from scene A to the same track in scene B and set a transpose value of +7 halftones there (ahead of the live session), then you can "transpose" a running scene of multiple clips by just switching the scene. I did not feel good enough that day for real loop-jamming, but that would have been possible, too. If "armed", the looper will continue to add notes to the active clip, with the new hardware version, that you are working on, arming/unarming could be controlled via footswitch, so you have both hands on the keyboard available for jamming :-). Have a great day and thanks for your work on the PCBs! Peter

Thanks, Bruno! We will keep you posted, when there are updates, Andy's main priority is the new MBSEQ at the moment, but we are confident, that we should have the first boards available for public consumption by spring 2018 or so! :-) I will surely not give up on this project, as it is just too much fun to play around with already :-). Have a great day! Many greets, Peter

Hi there, here is more of a techdemo than a full song :-) of what is possible with the MBLoopa V2 - it will be hopefully available at some time in spring 2018. Thankfully, Andy is creating PCBs and the finished unit will therefore not look as crappy as in this video :-). Features: 6 polynote channels with stepbased or unquantized note data, eight "scenes" (here used for transposing) and note editing, visual/graphical clip/note display and measure-synchronized muting/unmuting of tracks and scene switching, and a nice 256x64px OLED :-). A (very) little brother to the full MBSEQ (but with the ability to record unquantized notes and dynamically post-quantize them). Of course, it is all based on the fantastic MIDIbox hardware platform! :-) Thanks for watching and listening! Many greets, Peter

These are 10mm and really good for tight spaces, using them since 2010 or so on my first SEQ (built on veroboard with ~18mm shaft-shaft distance), highly recommended - methinks TK. uses them on his latest video, too: https://www.reichelt.de/Potiknoepfe/KNOPF-10-150B/3/index.html?ACTION=3&GROUPID=3139&ARTICLE=73959 Many greets, Peter

...don't give up! My left wrinkled toe tells me, this smells like a power supply issue :-) Can you measure voltages on the core, e.g. on the J15a/b display ports (display supply voltage)? Just use a multimeter and measure between pins Vd/Vs. Which display voltage (5V /3.3V) is set on J15S? Can you exchange the USB cable (i've had bad cables with super-thin wires or bad connectors and had problems even with low current draw)? Can you examine the micro USB port on the core module? It is not very sturdy, I managed to rip off two of them, maybe there is a fracture/connection problem on one of the power pins? Good luck! Many greets, Peter

@tago yes, it might work, if you would use two of Andys new center boards. You would then have two displays below which are a row of encoders, two rows of Matias switches and a third row of buttons. I'd say you can map some minimal functions to that and can use the SEQ quite productively (i.e. i never use the song mode and very seldom switch patterns, 16 tracks are enough ;-), but a) it would require quite a lot of config file adjusting (and maybe even some code changes, e.g. mapping three functions to a single button with altering state) b) you might want to have access to the full control surface at some point in time (the jogwheel pcb has those nice direct access mode buttons around it, as TK described in his last post in the "new SEQ frontpanel idea" thread). c) don't underestimate the necessity of the jogwheel encoder itself - i use it all the time, e.g. for step selection. There might be workarounds, but they may not be pretty... :-) Good luck and many greets! Peter

Yeah! :-) TK.: it is really nice to see a new demo, and that you use the mute/unmute screen a lot :-) Smithy: methinks the lower row of Matias switches now allows direct selection of the active track, e.g. see 3:09, where Thorsten changes from active track 3 to active track 10- so in Jam mode, i'd expect that you can change the active (recorded-to) track just as easy. Many greets and have a nice weekend! Peter

+1, buying a spare HD44780 display (can be smaller than 40x2 characters) e.g. from ebay for a few $$$ makes total sense to test things. Disconnect everything else, install the MBSEQ firmware (or any other app or test app from the ucapps MIOS32 download section) and connect the new display to see if the core is working properly. Many greets, Peter

Wow, proper old thread resurrection, could not even remember that one :-). After seven years of use (i built a custom CS at first, after some thoughts, it turned out to be not soo minimal :-)), i can now assure you, that if you want to use the SEQv4 properly, you need quite a lot of buttons. Under these considerations, i can recommend to wait for Andy's new modular SEQ boards, with a bit of hacking you might get away with using only the two center boards, but i'd recommend to go for the full SEQ, because you will be missing a lot otherwise! Many greets, Peter

The SEQv4 heavily relies on both 40x2 character displays. While you could hack the firmware to put it all on a single character display, this would be a big amount of work and probably the usability would suffer. Aligning the display to the GP buttons and encoders below makes total sense, as you can visually modify the displayed note. You could of course add some kind of "guiding lines" to the frontpanel, but that might not be as intuitive. You can minimize the distance between the CLCDs of course, but there would always be a little "gap". Many greets! Peter

Yeah, that is some very nice progress! :-) Many greets! Peter

No worries, you can do that - i've been using my SEQ since about 2010 without a case and it still works really well. It is something else, if you want to take it to gigs or transport it a lot... but otherwise, it will look as raw as you intend it to be :-) You will learn the key mapping in no time, if you use it on a daily basis or so, until then you could e.g. write some labels on cardboard and cut it out... Many greets, Peter

Hi there, some binary to decimal conversion will do it: E.g. if you want to set bit 0 in a 7-bit CC value (0-127), it would become (1), if you want to set bit 1, it would become (2), if you set bit 2, it would become (4) and so on. Add up these values to get to the result decimal value. For example, to set bits 3 and 5, the value would be 8 + 32 = 40, just send that as a regular CC value and you are good to go. https://en.wikipedia.org/wiki/Binary_number Many greets! Peter

cut that man some slack, if he says, there will be a new edition, then there will be one! :-) (i can only imagine how much work running a bulk with a project that size really is - and there might always be other priorities like girls, football, work and babies in life! :-)) Many greets, Peter

It should be possible to transport 2 amps through a micro USB connector, if the cables and connectors are good (many chargers deliver this for "medium quick" charging phones). Can you measure current draw with the setup when the LCDs are dimly lit? Second step: can you try to power the setup with a high quality USB charger or powerbank and a high quality cable? I have an Anker 10000mAh powerbank, that came with a high quality micro usb cable - this combination powers my "flatsequencer" (2x OLEDs, full MBSEQ CS + TPD) without troubles - the same cannot be said by some of the USB hubs here. On paper, they should be able to do it, too, but they fail rather spectacularly ;-), i don't know why that is. A lot really also depends also on the cable used. Finally, it may also be a problem on the core connector side - I managed to break off two connectors already, they are very flimsy on the discovery boards and the traces are hair-thin. If that is the case, you could try to directly power via J2 and rejumpering J17, it would be possible to split a usb cable and put power to J2 while soldering the data pins to the protection resistors on the discovery board. I did this lately, because i broke another connector, now i have a USB cable directly soldered to the core ;-). Many greets and good luck! Peter

Wenns wirklich HD44780 kompatibel ist, dann schon, die Zeichen sind dann nur an anderen Stellen (oder nicht sichtbar), wenn eine Firmware für eine andere Displaygröße entwickelt wurde... Es gibt aber Kommandos zur Cursor-Positionierung und man kann das anpassen. Ciao und viele Grüße, Peter

Great job, Bruno! Those Korg filters are nice, never owned a DW-8000 or the likes, but had them on the watchlist for a while, lost an auction for a probably damaged EX-8000 a few weeks ago, now by coincidence you turn up and make a filter, awesome! :-) Many greets, Peter

Very cool stuff! Was that an actual didgeridoo or a sample in the beginning? Sounds great! (I once imported one on the way back from Bali. The customs officers were not pleased and searched manically, if anything else was hidden in there :)) Many greets! Peter

Offtopic and just a remark: sometimes i got roasted when posting MBSID songs to C64 centric groups. People were claiming, that the MB6582 must be pure evil and surely has gathered lots of bad karma, because it contains SIDS from C64s, that are no more (it did not matter that i "harvested" only from otherwise dead machines and also wrote that). Posting pictures like the one above on a commodore group page is certain to cause extreme public outrage, so be prepared for that, if you want to create a similar case! :-) Many greets, Peter