Jump to content

bemerritt

Members
 View Profile  See their activity

  • Posts

    14

  • Joined

  • Last visited

 Content Type 

Posts posted by bemerritt

  5. SEQ 4 partial build for sale

    in Fleamarket

    Posted

    Someone take this off my hands. Don't have the time dedicated right now and I don't like have unfinished projects lying around. Below are the boards I have and their status (purchased from modular addict)

    %7Boption%7Dhttps://farm5.staticflickr.com/4499/36995031913_bbb12d22a1_b.jpg

    MIDIbox DIGITAL OUT (DOUT) PCB MID-DOUTXX-PCB 1 $6.99   - tested and working
    MIDIbox Core STM32F4 PCB MID-CORSTM-PCB 1 $9.99  - tested and working
    MIDIbox AOUT_NG PCB MID-AOUTNG-PCB 1 $8.99  - still debugging
    MIDIbox SEQ V4 PCB MID-SEQV4X-PCB 1 $34.99  - tested and working
    MIDIbox MIDI I/O PCB MID-MIDIIO-PCB 1 $6.99  - built, but no midi devices to test

     

    Between the boards, screens, and parts im in it over $400. Looking for $300

     

  8. AOUT + Line Driver HELP needed, no CV

    in MIDIbox SEQ

    Posted

    Just as another data point, I am still troubleshooting an AOUT_NG. However when I do the testaoutpin, i get 0v and 5 volts, which is what MIOS tells me I should get. That is except on one pin that is not flipping, so thats my next step, to trace that back, but that issue should be on the core board, not the AOUT_NG board.

  11. Connecting Analog Outs to Modular safely

    in MIDIbox SEQ

    Posted

    Is there any precautions that one should take when connecting the analog outs to a modular setup?

    I will eventually add line drivers and most likely a euro panel once I get ahold of some boards, but in the mean time, is there anything special i should do to connect the two. The plan right now is to just connect the pins to a breadboard that has some jacks on it, and connect them all to the ground for that jumper as well. 

     

    I noticed a while back that the boards for euro have more to them, but i presume this is for protection of the circuit incase you plug an output in.

     

    Any insight greatly appreciated!

  12. Help needed connecting WIlba CS

    in MIDIbox SEQ

    Posted · Edited by bemerritt

    Well,  that did the trick. Something as simple as mounting it on the front was something I hoped it would be, but is also rather emabarassing! Thanks for providing the second pair of eyes, I had tried way too many things yesterday and it was driving me crazy!

     

    Now the fun begins to get all of the different modules talking to eachother begins.

  14. Help needed connecting WIlba CS

    in MIDIbox SEQ

    Posted · Edited by bemerritt

    So over the weekend I soldered up all of my boards (core, cs, Midi I/O, DOUT, AOUT NG), and am having trouble connecting the CS. I have spent hours reading old topics on the matter, but could use some help.

    First step, SD card is formatted and I have what I think is the right file in the right place.

    37456981785_b517e8a05b_b.jpg

    Connected the boards and get this

     

    %7Boption%7Dhttps://farm5.staticflickr.com/4480/36644661203_97e4deb683_b.jpg

    I used jumpers just to make sure I had the correct pins connected. To J1 i get know response, on J2 i can get all sorts of response by touching the solder pands on the bottom of the baord

    %7Boption%7Dhttps://farm5.staticflickr.com/4438/36644661223_97e4deb683_b.jpg

    While connected in this fashion, i get this in MIOS

    %7Boption%7Dhttps://farm5.staticflickr.com/4465/36644591683_7cc7606127_b.jpg

    Which makes it looks like buttons are being pressed. Suggesting I have shorts. Looked at every joint under a microscope (I'm used to doing SMT work), and nothing there.

    Previous threads had called the resistor networks into question. Here is what i used, all showing 5 volts on the common pin.

    %7Boption%7Dhttps://farm5.staticflickr.com/4488/37284805592_3cc8fe5e0e_b.jpg

    I also left these jumpers empty, which shouldn't be a problem

    %7Boption%7Dhttps://farm5.staticflickr.com/4505/37314418261_9ef3876dbf_b.jpg

    Some other notes

    - Not all leds are soldered, i just did the 16 bi-colored ones

    - I defintiely connected the boards backwards, could i have fried my ICs on the CS? (have some new ones on order)

     

    So, any ideas? Anything to help troubleshoot would be awesome. Thanks!

     

    edit: is there an issue with having more than one picture in a post?

×
×
  • Create New...