OPEN HARDWARE // CERN-OHL-S v2BASED ON MEOWER

Research-grade 16-channel biopotential acquisition. Unlocked.

Simultaneous 24-bit, 2 kHz surface EMG and EEG capture on dual TI ADS1299 front-ends and an ESP32-S3 core. Streams straight into Python over pylsl for pose regression, force estimation and neural decoding work, at a fraction of the cost of proprietary lab amplifiers.

Configure your kit Read the docs and schematics

For research and education. Not a medical device.

16 CH · 2000 Hz · SIMULATED

Move the cursor over the array to recruit motor units.

Bridge the hardware bottleneck in neural decoding.

Work like Meta's emg2pose shows that multi-channel surface EMG can drive continuous 3D hand kinematics. Reproducing and extending it still usually means a closed, expensive lab amplifier.

Polykyma gives you raw, uncompressed 24-bit data from an open design you can read, modify and rebuild. Schematics, layout, firmware and the Python SDK are all published.

01 / HARDWARE

Technical specifications

ANALOG FRONT-END2 × ADS129916 differential channels, 24-bit delta-sigma ADCs, daisy-chained on one SPI bus with a shared clock.

NOISE AND GAIN1× to 24× PGAPer-channel programmable gain. Measured input-referred noise at 2 kSPS is published with batch 01 test data.

SAMPLING2,000 Hz × 16All channels sampled simultaneously from one clock, with hardware timestamps on every frame.

ISOLATIONADuM3160 USB isolatorGalvanically isolated USB plus low-noise LDO rails to cut ground loops and mains pickup while tethered.

COMPUTE AND TELEMETRYESP32-S3Dual-core MCU streaming over isolated USB-C or Wi-Fi UDP into Lab Streaming Layer.

DUAL MODALITYsEMG ⇄ EEGJumpers and register profiles switch between bipolar forearm sEMG (20–500 Hz) and common-reference EEG (0.5–50 Hz).

02 / RESEARCH

What people build with it

Hand pose tracking

Record 16-channel forearm sEMG alongside camera or glove ground truth and export emg2pose-style HDF5 sessions for continuous finger joint-angle regression.

from polykyma import Session

s = Session.record(seconds=300, sync="trigger_out")
s.export_hdf5("subject01.h5")  # (N, 16) emg + timestamps

03 / STORE

Configure your kit

Batch 01 · reservations open · ships TBA

TIER 1 · MAKER

Core PCBA

$349For embedded engineers and BCI builders with their own electrodes and a 3D printer.

Assembled and tested dual-ADS1299 PCBA, ENIG finish
Pre-flashed ESP32-S3 firmware with USB-C pylsl bridge
ADuM3160 USB isolation and JST-PH LiPo charging
STEP/STL files for the modular forearm pods

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TIER 2 · DEV KITRECOMMENDED

Complete sEMG Dev Kit

$799For labs, robotics teams and ML researchers who want a working 16-channel forearm rig on day one.

Everything in Core PCBA
Printed TPU 95A modular cuff with snap-fit housing
32 × passivated 316L dome electrodes, reference and bias strap
Shielded micro-coax harness
polykyma-sdk: live 16-channel scope, filters, HDF5 export

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TIER 3 · LAB

Lab and R&D Bundle

from $1,850For neurotech startups and biomechanics groups that need synchronized optical ground truth.

Calibrated multi-unit sEMG/EEG arrays
Hardware trigger out for camera and mocap sync
Custom electrode geometry
Direct engineering integration support

Talk to engineering

Reservations are not charged. We confirm your place in the batch by email and invoice before shipping. Prices exclude VAT and shipping.