Octopus 16
16-channel wireless biosignal device for the Seeed Studio XIAO ESP32-S3
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Overview
Octopus 16 brings high-density biosignal acquisition to microcontrollers with the Seeed Studio XIAO ESP32-S3, enabling portable, wireless, and low-cost 16-channel EEG data acquisition. It uses Texas Instruments ADS131M08 analog front-end chips to capture high-quality 24-bit biosignal data.
Ideal for researchers, students, and developers building advanced BCI prototypes, wireless neural-interface applications, and multi-channel embedded BCI setups. Octopus 16 is fully compatible with PiEEG Cloud and PiEEG-Server for browser-based visualization.
Technical Specifications
| Channels | 16 |
| Resolution | 24-bit per channel |
| Analog Front-End | 2× ADS131M08 |
| Interface | SPI / Wireless Bluetooth |
| Signals | EEG, EMG, ECG |
| Platform | Seeed Studio XIAO ESP32-S3 |
| Power | Battery-powered (5V, ≤300 mAh) |
| Software | PiEEG Cloud, PiEEG-Server & Python SDK |
Key Features
16 Biopotential Channels
High-density acquisition powered by dual ADS131M08 analog front-end chips.
Wireless & Portable
Bluetooth streaming firmware for the Seeed Studio XIAO ESP32-S3.
24-bit Resolution
Per-channel high-precision ADC for research-quality signal capture.
ESP32-S3 Powered
Compact, low-power microcontroller ideal for wearable BCI applications.
Battery Operated
Runs from a clean battery supply to isolate from mains noise.
PiEEG Cloud Compatible
Connect and stream straight from your browser via Web Bluetooth—zero install.
Octopus 16 is not a medical device and has not been certified by any government regulatory agency for use with the human body. You are fully responsible for your decision to purchase and use this device. Read our Liability Statement →
Ready to Get Started?
Purchase Octopus 16 from our official manufacturing partner Elecrow