1CH Focus Demo

This is the signature beginner workflow for FreeBCI Spike 1CH LH001: connect one channel, stream into FreeBCI DAQ, and run the Engagement Index / focus demo.

What You Are Demonstrating

This workflow is designed to show:

• the board can stream into FreeBCI DAQ
• the signal path is stable enough for live analysis
• FreeBCI DAQ can compute Engagement Index
• the built-in focus calibration workflow can run end to end

Setup Expectation

For the 1CH demo:

• one effective acquisition channel is enough
• one site binding is enough to complete the workflow
• the emphasis is signal stability and EI / focus behavior, not spatial coverage

DAQ Path

1. Open FreeBCI DAQ
2. Confirm hardware parameters on Setup
3. Add one acquisition site binding
4. Open the wired connection
5. Start collection
6. Move to Live
7. Move to Engagement & Focus

If you want the generic platform steps first, see Connect to FreeBCI DAQ.

What You Should See

In a healthy demo run:

• a live waveform appears on the Live page
• filtered signal follows the raw signal with less visible noise
• the FFT-based charts begin updating after the initial analysis window fills
• the EI trend starts moving after the warmup and rolling windows are populated

Focus Calibration

The 1CH module is a good fit for the built-in focus demo because the workflow is simple:

1. Complete warmup
2. Collect a baseline reference
3. Start the active decision window
4. Watch Focused / Not focused outputs update over time

See Engagement & Focus for the platform details behind the state machine.

When to Move to 8CH

Move to 8CH when:

• you want more than a single-channel demo
• you need simultaneous coverage of multiple sites
• you want richer multichannel monitoring and analysis

Next step: Upgrade from 1CH to 8CH