IronBCI-32
IronBCI-32 documentation for startup, cable connections, and software workflows.
IronBCI-32 is a high-channel-count, brain-computer interface with 32 simultaneous channels for measuring EEG, EMG, ECG, and EOG biosignals. It connects to a laptop or desktop over USB serial, delivering a full 32-channel data stream compatible with the BrainFlow SDK and the PiEEG Server.
What It Does
IronBCI-32 is the highest channel count device in the PiEEG family, making it well suited for high-density EEG research, advanced neural decoding, and applications that require full-scalp coverage. It transmits data over a USB serial connection using the FreeEEG frame format, which is natively supported by BrainFlow. To ensure clean signal acquisition, IronBCI-32 requires galvanic isolation between the device and the host computer. The laptop receiving data must run on battery power only — disconnected from mains — to eliminate 50/60 Hz line noise and prevent ground loop interference.
Key Features
- 32 channels of simultaneous biosignal acquisition
- Supports EEG, EMG, ECG, and EOG measurements
- USB serial connection to laptop or desktop
- Compatible with BrainFlow SDK out of the box
- Compatible with wet electrodes via 2.54 mm pin pitch connectors
- Powered by 5V USB battery — mains power strictly not permitted
- Supported by PiEEG Server for streaming and integrations
How It Differs
Depending on your research needs, choose the model that fits your host environment and channel density requirements.
| Feature | PiEEG | IronBCI | IronBCI-32 |
|---|---|---|---|
| Host board | Raspberry Pi | None (standalone) | Laptop / desktop |
| Channels | 8 | 8 | 32 |
| Connectivity | Wired (GPIO) | Wireless (BLE) | USB serial |
| BrainFlow support | No | No | Yes |
| Best for | General research | Wearable / mobile | High-density EEG |
Safety: IronBCI-32 must be powered from a 5V battery only. It must never be connected to mains power via USB or any other means. See the Liabilities page before use.
What You Need
To get started with IronBCI-32 you need the device itself, two USB cables (one for power, one for data), a 5V battery, electrodes, and an EEG cap. See How to Start for the full requirements and cable details.