Mini MIDI Keyboard

@SeanMichaelJohnston Sean Michael Johnston
Mon, 06 Apr 2026 14:24:06 +0000

v1.6.0 is now live. There are some UX/UI changes and many stability & workflow updates. One being the send/upload button is up top and activates when anything is changed, and all the settings will sync periodically as well.
But the biggest change is the new KB1 Flash Tools site which is covered in the readme quick-start section, here…

github.com

GitHub - PocketMidi/KB1: Open-source MIDI keyboard controller with built-in...

Open-source MIDI keyboard controller with built-in speakers that transforms the Polyend Tracker Mini into a complete portable music production setup. Includes hardware schematics and ESP32-based firmware.

And linked here…

pocketmidi.github.io

KB1 Flash Tools

This new flash tool is made specifically for the KB1, and preserves all settings and battery level data in between firmware updates. The firmware versions are served up on a list so there is now no need to download, and you can even easily downgrade if you want. Included are a couple other tools to see your stats or open a serial monitor to see the midi data realtime.