SyncStim Labs builds an open ESP32 devkit that aligns a short audio burst with a precisely-timed, charge-balanced electrotactile pulse and an LED cue, all on one low-latency timebase accurate to a few microseconds.
One synchronization engine on an ESP32 drives every output phase from a single timing authority, so sound, touch, and light land exactly when they should.
A short, shaped audio burst is generated over I2S into a Class-D amplifier and earphone.
A charge-balanced biphasic electrotactile pulse train is delivered through a constant-current driver, configurable and timed to the audio.
An LED cue fires in parallel for visual sync, useful for capture, debugging, and demos.
Built for timing fidelity and safe, low-current output, verified on the bench with oscilloscope captures.
We collaborate with embedded firmware and electronics engineers on focused, well-specified builds: clear milestones, oscilloscope-verified acceptance, and fair fixed-price scopes. If you do precise ESP32 timing, I2S audio, and constant-current analog design, we would like to hear from you.
Contact us