via Motion Soundscape:
“The special MIDI controller designed for iOS app FieldScaper. Great idea!
It includes a USB64 MidiBlock from Doepfer. The Knobs handles only the ‘Current’ Oscillator. With the buttons you choose OSC 1 to 3 and set it to the Current Oscillator. It has also buttons for record, play and delete files, open and close Panels. With the Movement Knob in the Middle you can move