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Yesterday, I finished my MBSEQ V4 build. I decided on the following components for my version of the sequencer. STM32F4CORE MBSEQ CS: Wilba Control Surface BLM16x4: 16 x 4 button matrix TPD: Track Position Display 2 x MIDI I/O: MIDI interface, a total of 4 MIDI IN and 4 MIDI OUT DOUTX4: 4 x 8 digital outputs AOUT_NG: 8 CV outputs (1V/oct) I did think about placing the digital outs and CV out modules outside of the main sequencer using line drivers so the sequencer did not have to be near the modular synthesizer. I did test the configuration and it worked as it should. However, I decided against it as I wanted the sequencer to be a self contained unit with all functionality in one box. The diagram below shows that final configuration with connections between the modules. I started with the main panel. As I wanted to house the sequencer in a 19? rack case, all panels are compatible with the standard 19? rack dimensions. I downloaded a Front Panel Designer panel design from the Midibox forum and added studs to make mounting the control surface PCB and LCD’s a lot easier. Here is my version of the FPD file: mbseq_19in_io-v01.fpd Here is a picture of how the PCB's are mounted to the panel. The second panel contains the BLM16x4 and TPD modules. For this panel I also added studs to an existing design to make assembly of the panel much easier. And here is my version of the FPD file: TPDBLM_19_v02.fpd The third and last panel holds all input and output connectors. This is a custom panel designed by myself. All I/O PCB’s are mounted directly to the panel except for the DOUTX4 PCB which is mounted in the rack case and connected to the panel connectors with flat cables. The panel also provides 2 USB +5V connectors for connecting LED lights or other peripherals. The other 2 USB connectors connect to the core PCB and provide a way to upgrade the core board firmware and the MBSEQ firmware. If I had to do it again I would leave out the labels above the SYNC outputs. This is the FPD file for the panel: MBSEQ_IO_panel_2HE-v02.fpd For the case I ordered the Thon Rack Case 8U 12 RA from Thomann. My MBSEQ V4 fits perfectly in there. There is even about 1 HE left. I used a black panel to fill that space. On the bottom of the case I mounted the core module and the DOUTX4 digital out modules. I also installed a custom PSU (DC-DC converter) which provides +5V (for the core board and the USB ports on the I/O panel) and +12V/-12V (for the AOUT_NG module). I’m very happy with the end result. The panels fit neatly in the 19? case. The 19? rack in the case is a bit angled which improves visibilty of all display and controls. Here is the final result.

Hi, As i said in an other message, my original plan was simply to put my old SID V1 back to life. I wanted to put it in a RACK 1U because i have too many little boxes everywhere around here. Very quickly i decided to upgrade the PIC and add a second SID to have a stereo V2. Then the project has grown. Here is the current status... The rack front panel (screenshot from front panel designer) : The knobs will be pots. I played a little with one pot on my mockup and it's very fun to control parameters with them. The 2 surface control PCBs : (They include the 74hc595 and 165 so they can directly be plugged on J8/J9 on core) And the most ambitious one : This is a Core + 2 SID on 10x10cm PCB + CAN (diode & resistor) + 4 mem chips. (With one jumper and 2 wires it's possible to use the 4 other 24LC512 of another PCB in adition to the main local 4.) One of the goal is to easily link up to 4 PCBs like this as SID v2 allows. I'll double check the PCBs and will order them. So there will be some time before the next update. I'll make all the files of this project available when it's finished. PCB are made with Kicad. Thanks Thorsten for documenting so well everthing, Xavier

Hello, Due to overproduction I am selling this Controller Plate. 3mm Aluminium Raw finish (If you want I can brush it and throw some clear coating on it for a bit extra if you don't want to do it yourself) Mounting Holes 19 Inch 5U (unsure of the unit right now, will measure it!) It is originaly designed as a rotary style controller or mixer. 6 Chanel Volume Controll 4 Band EQ / 3 Band EQ plus Gain per Chanel One aditional Master Volume Controller Headphone Volume Controller and Headphone Jack hole 7 Holes for switches (Cue select) 4 additional Controls 6 Band VU Meter Holes with 16 LEDs per channel (5mm LED) If interested please PM me. I will post you a render of what you could build with this plate. I had no acces to a better camera so picture quality isn't the best.

Hello, I am selling these two plates due to overproduction. 3mm Aluminium Raw finish (If you want I can brush it and throw some clear coating on it for a bit extra if you don't want to do it yourself) 19 inch 1U Mountingholes 5/9 Mountingholes for Pots or Encoders (Designed as Isolator or Controller/EQ) There are 2 or 3 available of each. Note that these plates are quite heavy, so shipping to outter Germany might be costy! If interested, please PM me. I had no acces to a better camera so picture quality isn't the best.