About the project
Building a modern MIDI controller on the RP2040 (Raspberry Pi Pico), Fatar TP/9S (dual-contact velocity), SSD1306 OLED, encoder, pitch/mod wheels, velocity curves/switching, presets (00–99), panic (All Notes off). Features added during milestones.
Role (Per Milestone): Embedded/MIDI Firmware Engineer
You will
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Implement TP/9S dual-contact scan (via MCP23017) → BR→MK Δt → velocity (0–127)
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USB-MIDI class compliant out; clean routing; Panic; wheels (Pitch bend, CC1)
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OLED/encoder UI; 6–10 velocity curves config.
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Presets (00–99), QPR (quick preset recall)
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More features discussed after milestones met.
Must-have
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Previous Project examples, and/or Shipped USB-MIDI hardware (links)
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49 key Fatar TP9/s Keybed with aftertouch (37,61, 76 is accepted if able to recode for 49)
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(RP2040) Raspberry Pi Pico or clone equivalents
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Matrix scanning + I²C (MCP23017) + SSD1306 (1.3’ OLED screen)
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MIDI 1.0 (incl. SysEx framing)
Nice
- MIDI 2.0 exposure, JUCE tooling, EMC pre-compliance, Wireless MIDI experience
Paid 1-week trial task
Deliver User Interface + short video: play TP/9S → DAW Note On w/ velocity; 3 switchable Velocity curves; Panic; wheel readout → CC1/Pitch Bend. no stuck notes.
How to apply (concise):
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Reply or message directly.
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2-3 portfolio links (Projects, code or shipped devices)
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Brief on your TP/9S scan approach (timers/ISRs; debounce; Δt→velocity mapping)
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Hourly/Daily rate + availability
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Location (International applicants welcomed!)