We’re big fans of Emmanuel Presselin’s original Teensy 3.2-based MiniTouch low-cost synth for children’s music workshops, so we were keen to find out more details when he mentioned a new Teensy 4.0-based MiniTouch 2nd Edition!

The MiniTouch 2.0 features a larger 18-note capacitive touch keyboard, two oscillators (up from one), 8-voice polyphony (from 4), FM and AM “ring” modulation, a noise generator with ladder filter, high- and bandpass filters in addition to the existing low-pass, per-voice filters (with note tracking) vs. a single global filter, and delay and reverb effects. A MIDI interface, EEPROM-backed presets, USB MIDI host, and a new PAM8406 class-D amplifier and larger speaker all bring quality-of-live improvements, while still remaining accessible for workshop participants with around a $35 BOM cost. See it in action below!