PicoTracker 2.1 - Palm-Sized Open Hardware Groovebox

What is it?

PicoTracker 2.1 is a palm-sized, open-hardware groovebox: 6-track sample sequencer, 44.1 kHz/16-bit stereo, 15 MB per project, live & step recording, effects, MIDI in/out, 3.5 mm gold-plated audio, USB-C charging, 2650 mAh battery for 8+ hours, and a bright IPS display. Ships as a ready-to-play unit — just add ideas.

What's New in v2.1?

• IPS display: Upgraded from v1.0 — wider viewing angles, better color reproduction
• Improved PCB layout: Modified by the author to adapt to the new screen and eliminate soldering during final assembly
• PCB screen bezel: Integrated frame for a cleaner look
• Charging indicator LED: Shows charge status even when the device is powered off
• Refined case feel: Minor ergonomic improvements to the chassis

Key Specifications

• Tracks: 6-track sample sequencer
• Audio: 44.1 kHz / 16-bit stereo output
• Project storage: 15 MB per project (~90s stereo / 180s mono / 360s 8-bit mono at max quality)
• Sample format: WAV (supports lower sample rates for extended length)
• Recording: Live & step recording modes
• Effects: Built-in audio effects
• MIDI: MIDI in/out
• Audio jack: 3.5 mm gold-plated stereo output
• Charging: USB-C
• Battery: 2650 mAh — 8+ hours runtime
• Display: Bright IPS panel
• Storage: Industrial-grade SLC TF card (pre-flashed with firmware, MIDI test, demo songs)
• Switch options: Cherry MX Low Profile or Kailh Choc v1

What Makes It Special?

• No-solder assembly: Custom PCB tray snaps the IPS screen, switches, and battery — build in 10 minutes with the included screwdriver
• Switch freedom: Choose quiet Cherry MX low-profile reds or tactile Kailh Chocolate; PCB also accepts any Kailh Choc v1 "pig-nose" switch
• Mirror-finish screen bezel and gold-plated jacks add studio-grade aesthetics
• Pre-flashed 2.1 firmware with factory MIDI test and demo songs — power on and start cutting loops immediately
• Open STL pack: Print your own ABS, PETG, or resin case in any color
• Charge LED: Shows charging status while device is off

FAQ

Q: Which option should I buy?
All options share the same circuit board and functions. To save money, choose the cheapest option. If you prefer a mechanical keyboard with specific keystroke feel, consider the Kailh Chocolate switch version.

Q: Want to DIY the case?
Buy the circuit board kit — all kits are pre-flashed, tested, and shipped with a battery. STL model files are available. The board is compatible with Cherry MX Low Profile and Kailh Choc v1 switches. The "solder switches yourself" option does not include switches.