NextTuesday

Startup fix. The 2026-07-01 and 2026-09-16 firmware accidentally lost the boot-delay-fix from 2024-05-14, so some modules could hang on power-up. This release brings it back:

• The crystal gets a long start-up delay again, so modules with slow-starting crystals boot reliably.
• Uses a generic flash boot mode that works with any flash chip, so the firmware no longer depends on which flash part a module was built with.
• Updating is easier: with picotool you can now reboot and flash the module over USB without holding the boot button.

Everything else is the same as 2026-09-16. If your module works fine on 2026-09-16 you can still update, but you don't have to.

MIDI! NextTuesday now speaks MIDI over its USB port (it shows up as a class-compliant USB-MIDI device called "NextTuesday MIDI", no drivers needed) and, if you have the NextTuesday MIDI Expander installed, over the expander's MIDI in and out jacks.

• MIDI clock in: send MIDI clock and NextTuesday follows it. Start, stop and continue reset and run the pattern generator, the clock jack still gets its pulses, and the LEDs show a dimmed cycling animation while it is following. If the clock stops for more than 5 seconds it hands control back to the Tempo knob.
• MIDI-to-CV mode: send it notes and NextTuesday turns into a MIDI-to-CV converter. Channel 1 drives the CV and Gate outputs, channel 2 drives the Tick CV and Accent gate, and channels 3, 4 and 5 drive the Loop, Beat and Tick gates. Transpose still works. Incoming MIDI is passed through to the MIDI output. Press Beat, TPB or Scale for a panic (all notes off). Long-press Algo to leave MIDI mode and return to normal sequencing.
• MIDI out: the generated pattern is sent as MIDI notes (accents get a higher velocity, slides are done with pitch bend), together with 24ppqn MIDI clock and Start/Stop, so NextTuesday can sequence and sync external gear.
• Two new scales: Double Harmonic Major (Byzantine) and Double Harmonic Minor (Hungarian minor). See the scale reference below for the LED patterns.
• LEDs are a bit less bright, and the Gate LED shows a dim red while muted.
• Fast bursts of MIDI no longer drop bytes; robustness fixes for running status and sysex.

! to zero is actual mute. Longer debounce.

Boot-delay-fix: this fixes random hangs on startup due to power-starved crystals.

Shake-to-wake after clock input. NextTuesday now waits for a small Tempo knob wiggle before resuming internal clock operation. It will show a small animation under the Tempo knob to show when it is waiting for either a wiggle or a clock.

Fast-clock debounce fix. This makes Tuesday track 24ppqn@240bpm better.

Initial release bug fixes.