Welcome to the MIDI Sprout forum

Author Topic: Note OFF  (Read 131 times)

Offline shockyzn

  • Newbie
  • *
  • Posts: 6
    • View Profile
Note OFF
« on: May 07, 2018, 05:28:54 AM »
Hello there.
I have programmed my own ATMega328P-PU chip using a USBAsp programmer. When i switch on the Midi Sprout, i get the light show, however when i touch the trodes, nothing happens. I connected the sprout to my laptop using a USB Midi plug, and opened up in MIDI-OX, it says Opened Midi Input, but i keep getting the message C -1 Note Off
What could be the problem?

Offline sam

  • Sam
  • Moderator
  • Full Member
  • *****
  • Posts: 187
  • Understand How Your Tools Work!
    • View Profile
    • Electricity for Progress
Re: Note OFF
« Reply #1 on: May 07, 2018, 12:52:19 PM »

I'm glad you attempted the build. Things to check:

1. Does the 555 timer circuit function and does it's led 'flash' when touching the trodes?  This will prove the main sensor is functioning
2. You stated that you see a note off message on the computer. Is this note off repeated, that would indicate a programming problem.
3. Try reflashing the 328p chip.
4. What specific instructions are you using, did you do a breadboard or a solder circuit board?