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Current firmware

Upgrade directly from Tempera using USB drive or micro SD card
Firmware for download: Tempera firmware 2.1 (released 27th January 2025)

Changelog

Version 2.1 (January 2025)

Tempera is now also a live grain FX processor: a track can be continuously recorded into while emitters are placed on it. Rather than the playhead moving across the track, the track itself is scrolling under the finger.
New Rake filter: a custom designed comb filter configuration with an optionally amplitude-modulated feedback path. The rate of the modulation is the same as the comb feedback frequency and both can be key-tracked.
New modulator destinations, sources and visualizations: Note velocity, Note tracking and Grain pan are new routing options, plus each modulator now draws a plotter-scope of its activity.
New filter visualizations in the UI to have a better overview and understanding of what the filter is doing and how it’s being modulated.
New "Align X=off" option where a grain can be emitted in between tracks. When that happens, the grain will play a weighted sum of the neighboring tracks, in other words when smoothly moving across the tracks they will be cross-faded.
New Filter send option to toggle each emitter to go to the main per-voice filter or not, useful to achieve better separation between emitters configured for different purposes.
Reworked and improved Reverb and Delay. The reverb is much smoother and more lush, and the delay’s band pass filter is more pronounced.
New Attack option for grain emission which makes the first emitted grain sharper, which gives a solution to playing long smooth grains with sharp attack at the same time.
Tap tempo and internal clock control, useful when by-ear tempo decisions are more convenient or when Tempera acts as a clock source.
MIDI clock improvements and built-in tempo corrections so Tempera stays in sync with various clock sources.
MIDI Program Change support to quickly load canvases from external MIDI devices.
New exotic and pentatonic scales for the Overlay Keyboard including modes, pentatonics and a few specialty scales.
Overlay Keyboard can output MIDI notes so you can play both Tempera and another MIDI-connected synthesizer directly from the Overlay Keyboard.
Automatic track tuning based on indicated BPM/Hz in the audio filename: if an audio filename is eg. Drums125bpm.wav or similar, Tempera will automatically assign 125 BPM to the track when the file is loaded.
So much polishing and streamlining thanks to a lot of feedback from the beetlecrab community, testing the long line of open beta firmwares and discussing on what should be done in what way.
QR code in settings pointing to the online manual for a handy reference in case the printed manual was lost or misplaced :-)

Version 2.0 (June 2024)

See the archived Manual v2.0.

Per-emitter FX send level: Adjust the amount of effects applied to each emitter for eg. better separation of percussive and tonal sounds. Layering complex sounds has become much easier.
Double the amount of modulators: From 5 per voice to 10 per voice.
Relative X and Y scrubbing: Easily grain-scrub in two dimensions across the touch grid surface. Perfect pairing for the Tempera concept.
Adjustable LED and emitter colors: Personalize the look of your Tempera, including having better color separation for those of us with a different color perception.
Improved onboard keyboard: The new chromatic piano-like keyboard layout has better usability and clear visual feedback for standalone operation.
Quantized random grain detune: Grains’ random detune can now be quantized to fifths, octaves, or both, providing a natural shimmer or extra harmony.
Reverb upgrade: The new reverb algorithm provides richer and smoother reflections, and faster diffuse properties. Perfect for lush and wide soundscapes.
Modulator visualization: Modulators now provide improved visual feedback so it’s easier to get a clear picture of their behavior.
Stable and reliable MIDI clock sync: Improved clock BPM detection, MIDI clock sync is now durable and reliable.
Canvas quicksave: Save your project (“canvas” in Tempera lore) immediately with a quick and handy shortcut.
New shortcut for emitter editing: Newly added shortcut makes it easier to edit, cycle and organize emitter configurations.
New global MIDI channel parameter: Integrate Tempera easily into a bigger setup, while allowing for per-emitter MIDI channels.
Delay upgrade: A dot mode is added, along with smoother filter coloring.
Micro SD card USB bridge: It is now possible to bridge the micro SD card contents over USB to a computer.
Bug fixes & polishing: The amount of bugs fixed, streamlining and polishing is too long to list. :-)

Version 1.5 (February 2024)

See the archived Manual v1.5.

New per-emitter Tone filters: consists of a stereo pair of 1-pole LP and HP filters and it has two parameters: Width and Center. It can work as a sweepable “DJ style” filter, or a smooth bandpass to give each emitter a place in the mix.
New modulator destinations: per-emmiter Volume, Grain size, Grain Density, and Tone.
Picking an audio slice from a long audio file: It is now possible to load a long audio file into Tempera (up to 5 minutes) and pick an up to 11s window from it to load into a Track.
Random Name Generator to save time when saving canvases (no more AAAA.canvas!)
Many new new global settings, like Velocity curve, Max volume, Audition volume, new recording mode Mix which blends half of old with half of new, adjustable Display brightness.
Small things, like Round button + keyboard to show/hide the overlay keyboard, and a new Chromatic scale option.
New Horizontal overlay keyboard variant.
The MIDI parameter table has been updated.
A lot of polishing and of course many bug fixes

Version 1.4 (January 2024)

Added Emitter lock parameter that prevents a placed emitter from being overwritten
Added record overdub/replace modes
LED brightness adjustment
A bunch of bug fixes (midi clock, midi channels, emitter latch mode, USB midi, …)