Hardware
Devices
Octopus_16
Overview

Octopus 16

Image

Octopus 16 is a 16-channel device designed to measure biosignals — including EEG (electroencephalography), EMG (electromyography), and ECG (electrocardiography).

What It Does

Octopus 16 brings high-density biosignal acquisition to microcontrollers the Seeed Studio ESP32-S3, enabling portable, wireless, and low-cost 16-channel EEG data acquisition. It utilizes Texas Instruments analog front-end chips (such as the ADS131M08) to capture high-quality 24-bit biosignal data.

Octopus 16 is ideal for researchers, students, and developers building advanced BCI prototypes, wireless neural-interface applications, and multi-channel embedded BCI setups.

Key Features:

  • 16-Channel Support: Measures up to 16 channels of EEG, EMG, or ECG data simultaneously.
  • 24-bit ADC Resolution: Powered by high-precision ADS131M08 analog front-end chips.
  • Wireless & Portable Firmware: Supports firmware written for Seeed Studio XIAO ESP32 S3 with Bluetooth streaming options.
  • Developer Tools: Includes Python-based data processing scripts (FFT, signal visualization) and GUI visualization tools (SDK_Data_Visual.py).
  • Low Power: Suitable for wearable, battery-powered BCI applications.

How It Differs from PiEEG:

Comparison: PiEEG vs. Octopus 16

FeaturePiEEGOctopus 16
Host / MCURaspberry Pi 3 / 4 / 5Seeed Studio XIAO (ESP32-S3
Channels816
Analog Front-EndADS1299ADS131M08
ConnectivitySPI Direct HeaderSPI / Wireless Bluetooth
Best forStandard 8-ch research, single-board Linux setupsHigh-channel wearable BCI, wireless prototyping, embedded