Need help! Using a Spoke Board with Wav Trigger Pro

Other
1

I followed all the instructions to put my Wav Trigger Pro into host mode. My plan is using the spoke board to trigger WAV files on an art installation.

My process

  • Boot Mode → Install WTProH_v120_20251027.hex
  • HST/DEV → Host position
  • VBUS → closed
  • External 5V/GND → connected

Tested -

  • Physical Trigger 1 does play audio manually

When I connect my Spoke Board it lights up but nothing is coming through - So I tried renaming files, playing with CSV, changing cables, sd cards, and using other midi devices with the same result. I’m clueless on what to do next

I reversed my work and tried to put the updates 3 times. Just nothing from the midi controller

Thank! Any help is appreciated:)

2

Can you share a photo of the modified jumpers?

3

Several things possible here:

  1. Something wrong with your WAV Trigger Pro host mode conversion. Do you have another USB MIDI Keyboard or Controller to try with the WAV Trigger Pro?

  2. Something about the Spoke Board MIDI device profile - It is admittedly untested with the WAV Trigger Pro Host (I just learned about the Spoke Board from this post). Does the Spoke Board work when plugged into another MIDI Host such as your computer? If Windows, can you send a screenshot of Device Manager showing it installed?

  3. Your preset (or lack of one) and your filenames are not correct. Are you using a preset?

4

Hello! Thank you so much for responding.

  1. I attempted two different midi controllers with no luck (one pad / one keys) I initially thought maybe I botched the conversion or didn’t properly install the host hex file. So I undid my work and tried an additional two times. I checked with a multimeter to confirm the solder work after the conversion and took screenshots of STM32CubeProgrammer validating the programming. The Spoke board gets power from Wav Trigger and I can touch the pads on the Spoke but nothing came through. I even went with tinkering with the spoke board online configurator SPOKE Board Configurator with no results.
  2. The Spokeboard works within my Ableton Live 12 on my Mac. I also tried it with a Teenage engineering OP-1 field working as a host and no issues there.
  3. I used the files, filenames, and examples provided on the website to test - I tried the files from here WTPro Examples — Robertsonics I went back from HST to DEV and programmed back to confirm it’s still operable on my computer and it is read by Ableton.

The SD portion works and reads the card. I tested different Micro SDs and exported my personal WAVs correctly using Audacity. The photos don’t show my breakout for the audio but that definitely was also completed and then tested the sounds via the trigger pins.

(Note: The photos of the solder work are after several attempts. The first attempt was before soldering, and you can determine if the host file was programmed successfully from the photos.)

Thanks for all the help and support!

- Mogli

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5

The next most likely issue is a mismatch between the MIDI Channel number that your Spoke Board (or MIDI keyboard/controller) is sending on, and what the WAV Trigger Pro is programmed to recognize. If you’re using a Preset, the #NOTE commands specify a MIDI Channel (third column of the Preset.) If the number in that column is 0 through 15, then your MIDI Controller must be sending Note-On messages on that channel, otherwise it will be ignored. If the number in that column is 16, then all channels will be recognized, i.e. a Note On message on any channel should play that note.

Keep in mind that MIDI Channels are numbered 0 - 15, but the UI in some controllers refer to them as 1 - 16. The WAV Trigger Pro MIDI Channel 0 may (or may not) correspond to what your controller calls MIDI Channel 1.

If there is no preset on the microSD card, the default preset is in effect, and the MIDI Channel numbers should default to Omni (16)

6

Also, I made a web app for creating and editing presets that may be easier to use and experiment with than using Excel or Sheets.

7

Ok, so I made a little progress today. The prior day I had ordered a simple midi keyboard (Donner N-25) I went back to re-install the hex and the only thing I did different on the STM32 programmer was to check off “Run After Programming” not sure if that was needed or if I missed any steps. Plugged in the Donner and I got sounds finally. I will look into the Spoke and see how it’s programmed. Thank you, I’ll do some more testing. Thanks again!!