07/15/2018 at 10:56 •
Testing revealed that certain devices didn't like the output, and after scoping the MIDI port it was sending note off every single time it hit a step, regardless if a note had been played previously.. so 8x16 note offs were going on!
I have now programmed an array that flags if the previous step has been played and only send note off if it has, therefore if nothing is set it will send no data.
The stop sequence routine did the same, just note offed everything. so this uses the flag and only sends if there is something to send.
I have added a 'clock out' which is a 5v pulse on every 8th or 16th note (programmable)
- CC now starts and stops the sequencer
- MIDI in merges with the sequencer MIDI on port 1
07/14/2018 at 19:50 •
PCB Arrived and is now all complete on it's new panel
PROTOTYPE SPARES AVAILABLE IF INTERESTED.. PLEASE CONTACT ME
07/08/2018 at 15:52 •
PCB has been ordered for this
I'll have some spare so anyone interested in this project, get in touch
06/27/2018 at 20:23 •
Just got some new aluminium panels cut so this will fit in my new modular synth box, now it's 250x175 so more room to mount the components and circuit board.
The current panel is too small and left no room for a good fixing into a rack or case.
I need to give it it's own 5 volt regulator as the main PSU for the case is +/- 12 v only.
06/16/2018 at 20:43 •
The second bar option works, but the LED sequence misses off the first step as it has to flip the entire display from bar 1 to bar 2
The MIDI sends a Note ON with velocity of 0 instead of Note OFF, this upsets some equipment and makes clicking noises.
Easily changed in software
When the LED hits the next one, it sends a note OFF even if there wasn't a sequence set, this is fixable but would require additional checks at the start of the next sequence to see if the previous was set and if so, send the note off, otherwise ignore it.